All Tools
261 free tools, grouped by category. Every tool runs in your web browser: your files and text are processed on your own device and are never uploaded. No login, no limits, no watermarks.
PDF
40
Add Page Numbers to PDFAdd page numbers to a PDF: choose the position, format (Page 1 of 10), start number and first page. Free and private, in your browser.
Add Watermark to PDFAdd a text or image watermark to a PDF: choose colour, transparency, angle, size, centred or tiled, all or some pages. Free and private.
Annotate PDFAnnotate a PDF: highlight text, draw, add text notes and boxes in five colours, with undo. Free, private, in your browser.
Compare PDF FilesCompare two PDF files: see added and removed words page by page, or overlay pages to spot visual changes. Download a report. Private.
Compress PDFReduce PDF file size by shrinking images and removing unused data. Choose low, recommended or strong compression — in your browser.
Crop PDFCrop PDF pages: drag a box on the page, type margins in mm or detect white margins automatically — all pages or one. Free and private.
Delete PDF PagesRemove pages from a PDF: click the pages to delete or type them (e.g. 2, 5-7), then download the cleaned PDF. Free and private.
Edit PDFEdit a PDF online: change the existing text, add new text and images, white out anything. Free, private, nothing is uploaded.
Excel to PDFConvert Excel spreadsheets (.xlsx) to PDF: choose sheets, fit columns to the page, keep formatting and gridlines. In your browser.
Extract Images from PDFSave the images embedded in a PDF: JPEG pictures exactly as stored (no quality loss), all others as lossless PNG. Download one or all.
Extract PDF PagesExtract pages from a PDF: select the pages you need and save them as a new PDF or as separate files. Free, private, in your browser.
Fill PDF FormFill in a PDF form online: text boxes, check boxes, radio buttons and lists, then save the filled PDF, optionally flattened. No upload.
Flatten PDFFlatten a PDF: make filled-in forms, comments and stamps a fixed part of the page, or turn every page into an image. Free and private.
HTML to PDFConvert HTML code or an .html file to PDF: live preview, page size, orientation and margins. Scripts never run. In your browser.
Image to PDFConvert any images — JPG, PNG, WebP, GIF, BMP, HEIC — to PDF. Mix formats, reorder and set page size. Free, private, in your browser.
JPG to PDFConvert JPG photos to PDF. Combine many JPGs into one PDF, set page size, orientation and margins — no quality loss, no upload.
Merge PDFCombine multiple PDF files into one. See every page, drag pages into any order or remove them, then merge — in your browser, never uploaded.
PDF Metadata EditorEdit a PDF's title, author, subject, keywords, language and dates, and save a copy — so it shows the right details everywhere.
PDF Metadata RemoverSee and remove hidden PDF metadata — author, title, software, dates and XMP data — or edit it. Free and private, in your browser.
PDF to ExcelConvert PDF tables to an Excel spreadsheet (.xlsx): columns detected automatically, numbers as real numbers, preview first. Private.
PDF to JPGConvert PDF pages to JPG images. Choose pages, resolution (up to 300 dpi) and quality; download one image or all as a ZIP.
PDF to PDF/AConvert PDF to PDF/A-2b for long-term archiving, with an embedded colour profile and archive metadata. Free and private.
PDF to PNGConvert PDF pages to lossless PNG images, with a white or transparent background. Choose pages and resolution — in your browser.
PDF to PowerPointConvert PDF to a PowerPoint presentation (.pptx): one slide per page, as exact pictures or with editable text. Free, private, in your browser.
PDF to TextExtract the text of a PDF as plain text — line by line or as paragraphs — for all pages or a page range. Copy it or save a .txt file.
PDF to WordConvert PDF to an editable Word document (.docx) with paragraphs, headings, bold, sizes and images — in your browser, never uploaded.
PNG to PDFConvert PNG images and screenshots to PDF, keeping transparency and full quality. Combine many PNGs into one PDF — in your browser.
PowerPoint to PDFConvert PowerPoint presentations (.pptx) to PDF, one slide per page, with text, pictures and backgrounds (beta). In your browser.
Protect PDFPassword-protect a PDF with AES-256 encryption and optionally restrict printing, copying and editing — encrypted in your browser.
Redact PDFPermanently black out text and areas in a PDF: search words, emails and phone numbers, or draw boxes. Hidden content is really removed.
Reorder PDF PagesRearrange PDF pages by drag and drop: move pages, reverse the order and save a new PDF. Free and private — in your browser.
Repair PDFFix PDFs that won't open or show errors: rebuild a broken structure with qpdf, recover objects, or rescue readable pages. No upload.
Resize PDF PagesChange the page size of a PDF to A4, US Letter, Legal, A3, A5 or a custom size; content is scaled to fit. Free, private, in your browser.
Rotate PDFRotate PDF pages permanently: turn single pages or the whole document 90° left or right and save. Free, private, in your browser.
Sign PDFSign a PDF yourself: draw, type or upload your signature, add the date, place it on any page and download. Free, private, no upload.
Split PDFSplit a PDF into several files: click where to cut, split every N pages or by page ranges. Free, private — split in your browser.
Text to PDFTurn plain text or a .txt file into a clean PDF: choose font, size, page size, margins and line spacing. Free, private, in your browser.
Unlock PDFRemove the password from a PDF you can open, or remove printing and copying restrictions. Decrypted in your browser, never uploaded.
WebP to PDFConvert WebP images to PDF. Combine several WebP files into one PDF with your choice of page size and margins — in your browser.
Word to PDFConvert Word documents (.docx) to PDF in your browser: preview the pages, then download the PDF or save it with selectable text.
Image
20
AVIF to JPGConvert AVIF images to JPG (or PNG with transparency) in your browser — one image or a batch, with quality control. No upload.
Background RemoverRemove the background from photos automatically with AI that runs in your browser. Brush to fix edges, new background, PNG download.
Color Picker from ImagePick any colour from an image as HEX, RGB and HSL, with a magnifier for precision, a pick history and the image's main colours.
EXIF ViewerSee a photo's hidden metadata — camera, settings, date and GPS location — and remove it without losing quality. Private, in your browser.
Favicon GeneratorCreate a complete favicon set from an image, text or emoji: favicon.ico, PNG icons, Apple touch icon, Android and maskable icons, manifest.
HEIC to JPGConvert iPhone HEIC photos to JPG or PNG in your browser — perfect for Windows and Android. Batch, keeps quality, no upload.
Image CompressorCompress JPG, PNG and WebP images in your browser — up to 80% smaller with no visible loss. Batch, target size (e.g. under 100 KB), no upload.
Image ConverterConvert images between JPG, PNG, WebP, GIF and BMP — from JPG, PNG, WebP, AVIF, GIF, BMP or HEIC — one by one or in a batch. No upload.
Image CropperCrop images free-hand or to 1:1, 4:5, 16:9 and other ratios, with exact pixels, rotate and flip. JPG, PNG, WebP; batch. Private.
Image EffectsBlur, pixelate, make black and white, sepia or invert a photo, the whole picture or just an area such as a face or number plate. No upload.
Image ResizerResize JPG, PNG and WebP images by pixels, percent or print size — keep the aspect ratio, crop to fill, or pad. Social media presets. Batch, private.
Image RotatorRotate images 90°, 180° or by any angle to straighten them, flip them, and fill or crop the corners. JPG, PNG, WebP; batch. Private.
Image UpscalerEnlarge images 2× or 4× with AI (Real-ESRGAN) that runs in your browser: sharper details than normal resizing, no upload, no watermark.
Image WatermarkAdd a text or logo watermark to photos — in a corner, centred or tiled across the picture — with size and opacity, one photo or a batch.
JPG to PNGConvert JPG images to PNG in your browser, with an option to make a white or coloured background transparent. Batch, lossless, no upload.
Passport Photo MakerMake passport and visa photos at home: India, US, UK, Schengen and more sizes, head-size guides, white background, 300 dpi photo or print sheet.
PNG to JPGConvert PNG images to JPG with adjustable quality. Transparent areas get the background colour you choose. Batch, ZIP download, no upload.
Sprite Sheet GeneratorCombine many images into one sprite sheet PNG — grid, row, column or packed — with matching CSS classes and a JSON frame map.
SVG to PNGConvert SVG to PNG, JPG or WebP at any size or several sizes at once, with a transparent or coloured background. Private, in your browser.
WebP ConverterConvert WebP to JPG or PNG, and JPG, PNG or GIF to WebP — lossy or lossless, transparency kept. Batch, ZIP download, in your browser.
Calculators & Converters
25
Age CalculatorCalculate exact age from a date of birth in years, months and days, plus total weeks and days and the next birthday. Also time between two dates.
Business Days CalculatorCount working days between two dates without weekends and your holidays, or find the date N business days before or after a date.
Compound Interest CalculatorSee how savings grow with compound interest and monthly deposits: final balance, interest earned, chart and year-by-year table.
Countdown TimerAn online timer with alarm, a countdown to any date you can share, and a stopwatch with laps. Keeps exact time in background tabs.
Currency ConverterConvert between 30 major currencies with the European Central Bank's daily reference rates. Shows the rate date and keeps the last rates for offline use.
Date Difference CalculatorCount the days between two dates in years, months, weeks and days, or add and subtract days, weeks, months and years from a date.
Discount CalculatorWork out the sale price and savings for % off, amount off, two stacked discounts or buy X get Y deals, or find the % off. Tax optional.
EMI & Loan CalculatorCalculate a loan's EMI, or the amount, rate or term, with monthly, bi-weekly or weekly payments, total interest and the full schedule.
FD CalculatorCalculate fixed deposit maturity and interest with quarterly, monthly, half-yearly or yearly compounding, effective yield and a yearly table.
GST CalculatorAdd GST to a price or remove it from a GST-inclusive amount, with the CGST + SGST or IGST split. Edit the rate buttons; works for VAT too.
Income Tax Calculator IndiaCalculate income tax for FY 2026-27 and FY 2025-26 under the new and old regimes side by side, with rebate, deductions, surcharge and cess.
Mortgage CalculatorEstimate your monthly mortgage payment with property tax, insurance, PMI and HOA, extra payments, total interest and a yearly amortization table.
Percentage CalculatorSix percentage calculators in one: X% of Y, what percent, percentage increase or decrease, difference, add/subtract a %, and reverse percentage — with steps.
PPF CalculatorCalculate Public Provident Fund maturity for a yearly deposit over 15 years or with 5-year extensions: total invested, tax-free interest and a yearly table.
Profit Margin CalculatorCalculate profit, margin and markup from cost and price, or find the selling price for a target margin or markup, with quantity and tax.
Random Picker – Spin the WheelSpin a wheel of names or options to pick a random winner, pick several at once, or shuffle a list — fair, cryptographically random picks.
RD CalculatorCalculate recurring deposit maturity with quarterly compounding: total deposited, interest earned and a year-by-year table for any monthly amount.
ROI CalculatorCalculate return on investment and annualized ROI from the amount invested, the amount returned and how long you held it.
Scientific CalculatorA free online scientific calculator: trig in degrees or radians, logs, powers, roots, factorials, memory and history. Type or tap.
Simple Interest CalculatorCalculate simple interest and the total amount, or solve for the rate, time or principal. Time in years, months or days, with a yearly table.
SIP CalculatorCalculate the maturity value of a monthly SIP in mutual funds: total invested, estimated returns, optional yearly step-up, chart and yearly table.
Time Duration CalculatorCalculate the time between two times or dates, minus breaks, in hours and minutes and decimal hours — or add up a list of durations.
Time Zone ConverterConvert a time between any time zones, with daylight saving handled, and plan meetings across cities with a 24-hour working-hours grid.
Tip CalculatorWork out the tip and total for any bill, split it between friends, round each share up, and tip before or after tax. Any currency.
Unit ConverterConvert length, weight, temperature, volume, area, speed, time, data size, pressure and energy between metric and imperial units — instantly.
Text & Writing
13
Case ConverterConvert text to UPPER, lower, Title, Sentence case, camelCase, PascalCase, snake_case, kebab-case or CONSTANT_CASE, with undo and copy.
Lorem Ipsum GeneratorGenerate lorem ipsum placeholder text as paragraphs, sentences, words or list items, as plain text or HTML. Copy or download in one click.
Markdown EditorWrite Markdown with a formatting toolbar and live preview, count words, and save as .md or HTML. The draft stays in your browser.
Readability CheckerCheck how easy your English text is to read: Flesch Reading Ease, grade levels, reading time and the long sentences to simplify.
Remove Duplicate LinesRemove duplicate lines from any list instantly. Ignore case and spaces, keep the first or last copy, sort, and see which lines were repeated.
Remove Line BreaksRemove line breaks from text copied from PDFs and emails: keep paragraphs or join everything, re-join hyphenated words, or replace breaks with commas.
Text Diff CheckerCompare two texts and see every difference by line, word or character — side by side or inline. Ignore case, spaces or blank lines.
Text ReverserWrite text backwards, reverse each word, the word order or the line order, and make upside-down or mirror text. Emoji-safe and private.
Text SorterSort lines alphabetically, naturally, by number, by length or at random, or reverse their order. Sort by a column, remove duplicates. Private.
Text to ASCIIMake text ASCII-safe — remove accents, replace smart quotes, dashes and symbols — or show the ASCII and Unicode codes of each character.
Text to SpeechRead text aloud with natural voices in many languages: choose voice, speed, pitch and volume, pause and resume, follow the highlighted sentence.
Whitespace RemoverRemove extra spaces, tabs, line breaks, empty lines and invisible characters from text in one go — and see exactly what was removed.
Word CounterCount words, characters, sentences and paragraphs as you type, with reading time, keyword density and character limits for X, SMS and SEO.
Developer
26
Base64 Encoder / DecoderEncode text or files to Base64 and decode Base64 back to text or a file. UTF-8, URL-safe, MIME line wrap and data URIs. Private.
Color ConverterConvert colors between HEX, RGB, HSL, HWB, OKLCH, Lab and CMYK in any direction, check WCAG contrast and get tints and shades.
Cron Expression GeneratorBuild or paste a cron expression, read it in plain English, and see the next 10 run times in any time zone. Crontab, GitHub Actions, Kubernetes.
CSS FormatterBeautify CSS, SCSS and Less: one declaration per line, consistent indentation and spacing, with syntax errors shown by line.
CSS MinifierMinify CSS: remove comments and whitespace, drop empty rules and redundant semicolons — safely, without changing how it works.
Hash GeneratorGenerate MD5, SHA-1, SHA-256, SHA-512, SHA-3, BLAKE3 and CRC32 hashes of text or files of any size, with HMAC and checksum comparison. Private.
HTML Entity Encoder / DecoderEncode text as HTML entities — named, decimal or hex — or decode any HTML entity back to text. Supports all HTML5 entity names.
HTML FormatterBeautify HTML, including inline CSS and JavaScript, with Prettier, or minify it safely. Indent, line width and whitespace options. Private.
HTTP Status CodesEvery HTTP status code explained: meaning, when to use it, common causes and fixes, from 100 Continue to 511, plus nginx and Cloudflare codes.
JavaScript FormatterBeautify JavaScript, TypeScript, JSX and JSON with Prettier: indent, quotes, semicolons and line width. Syntax errors with line and column. Private.
JavaScript MinifierMinify JavaScript with Terser: remove whitespace and comments, shorten local names and compress code, with syntax errors shown by line.
JSON FormatterFormat, beautify and minify JSON with 2/4-space or tab indentation, sorted keys and a collapsible tree view. Big numbers stay exact. Private.
JSON ValidatorValidate JSON and see the exact line and column of every error in plain English, fix common mistakes, and check data against a JSON Schema.
JSONPath TesterTest JSONPath queries live against your JSON: wildcards, recursive descent, slices and filters (RFC 9535), with matching values and paths.
JWT DecoderDecode a JSON Web Token: header, payload, readable exp/iat dates and expiry status. Verify HS256, RS256, ES256 and more. Token stays on your device.
MIME Type LookupFind the MIME type for a file extension or the extensions for a MIME type, with nginx and Apache lines, and check what a file really is.
Mock JSON GeneratorGenerate realistic fake JSON, NDJSON or CSV test data: names, e-mails, phones, addresses, dates, prices and custom lists, up to 10,000 records.
Regex GeneratorCreate regular expressions without writing regex: tested patterns for emails, URLs, dates and more, a rule builder, or learn from examples.
Regex TesterTest JavaScript regular expressions with live highlighting, capture groups, named groups and a replace preview. Flags, cheat sheet and common patterns.
SQL FormatterBeautify SQL queries for MySQL, PostgreSQL, SQL Server, Oracle, SQLite, BigQuery, Snowflake and more, or minify them. Private, in your browser.
SQL MinifierMinify SQL: remove comments and extra whitespace outside strings to put queries on one line — for code, configs and logs.
Unix Timestamp ConverterConvert Unix timestamps (seconds, ms, µs, ns) to dates in any time zone, and dates back to epoch time. Live current timestamp and batch mode.
URL Encoder, Decoder & ParserEncode or decode URLs (percent-encoding), parse a link into its parts, and edit its query parameters in a table.
User-Agent ParserParse a User-Agent string into browser, version, engine, operating system and device, detect bots and AI crawlers, and see your own browser's details.
UUID GeneratorGenerate random UUID v4 or time-ordered v7 identifiers, up to 1,000 at once, in any format. Check and decode any UUID.
XML Escape / UnescapeEscape text for XML (& < > " ') or turn XML entities and character references back into plain text.
Video
14
GIF to VideoConvert an animated GIF to an MP4 video — much smaller, accepted everywhere — keeping each frame's timing, with optional repeats.
Mute VideoRemove the sound from a video in seconds. The picture is copied without re-encoding, so the quality stays exactly the same. No upload.
Screen RecorderRecord your screen, a window or a browser tab with sound and microphone, right in the browser — no install, no watermark, saved as MP4 or WebM.
Video CompressorReduce the size of MP4, MOV and WebM videos in your browser: pick a quality or a target size like 25 MB, lower the resolution, keep the sound.
Video ConverterConvert videos between MP4, WebM, MOV and MKV in your browser — fast without quality loss when possible, or re-encoded for best compatibility.
Video CropperCrop a video to any area — free or 1:1, 16:9, 9:16, 4:5 or 4:3 — by dragging a box or typing exact pixels. Sound is kept.
Video CutterCut out an unwanted part from the middle of a video and join the rest into one file, with picture and sound in step. Runs in your browser.
Video Frame ExtractorSave frames from a video as JPG, PNG or WebP: the frame on screen, one every few seconds, or a set number spread evenly. ZIP download.
Video MergerJoin several videos into one MP4 in the order you choose — different sizes and formats welcome, with black bars instead of stretching.
Video ResizerResize a video to 1080p, 720p, 480p or an exact size, or reshape it for Reels, Shorts, TikTok (9:16), square (1:1) and 4:5 with bars or crop.
Video RotateRotate a video 90° left or right or 180°, or mirror it, to fix sideways and upside-down phone videos. Sound is kept.
Video Speed ChangerSpeed up or slow down a video from 0.25× to 4×, keeping the voice pitch natural or not, or without sound. In your browser, no upload.
Video to GIFTurn a part of an MP4, MOV or WebM video into an animated GIF in your browser: pick start and end, frame rate, width and colours. No upload.
Video TrimmerTrim a video to a start and end time in your browser — instantly without re-encoding, or frame-exact. MP4, MOV, WebM and MKV. No upload.
Audio
14
Audio CompressorReduce the file size of audio — voice notes, podcasts, music — for email, WhatsApp and storage, with presets and size before and after.
Audio ConverterConvert audio between MP3, M4A (AAC), OGG (Opus) and WAV — from MP3, WAV, M4A, OGG, Opus and FLAC — one file or many, in your browser.
Audio CutterRemove an unwanted part from an audio recording or song and join the rest seamlessly. MP3, WAV, M4A, OGG and FLAC. Runs in your browser.
Audio MergerJoin MP3, WAV, M4A, OGG and FLAC files into one in the order you choose, with an optional pause or crossfade between them. No upload.
Audio Metadata RemoverRemove tags and cover art from MP3, M4A, FLAC, OGG and WAV files without re-encoding, or keep only title, artist and album. Batch, no upload.
Audio Metadata ViewerSee an audio file's tags — title, artist, album, track, genre, lyrics, cover art — and its codec, sample rate and bitrate.
Audio NormalizerNormalize audio loudness to −14 LUFS for streaming, −16 for podcasts or −23 for broadcast, or the peak to −1 dBFS. Measured with EBU R128.
Audio Speed ChangerSpeed audio up or slow it down from 0.5× to 2× — keeping the pitch so voices sound natural, or changing it like a tape.
Audio to WAVConvert MP3, MP4, M4A, AAC, OGG, FLAC or any video's sound to uncompressed 16-bit WAV, at the original or a chosen sample rate.
Audio TrimmerTrim MP3, WAV, M4A, OGG and FLAC audio to a start and end time with fade in and fade out — for ringtones, clips and intros. No upload.
Audio Volume ChangerMake an audio file louder or quieter by up to 20 dB, with a peak check and a limiter so boosted sound doesn't distort.
Audio Waveform ImageTurn audio into a waveform image: bars, mirrored or line style, your colours or transparent, sized for web, video and social posts. PNG or SVG.
MP4 to MP3Convert MP4, MOV and WebM videos to MP3 or M4A audio in your browser: choose the quality, cut a part, convert several files. No upload.
Voice RecorderRecord your voice from the microphone in the browser, with a level meter, pause and resume — play it back and save as MP3, WAV or as recorded.
Document
14
Document DiffCompare two versions of a Word, ODT, RTF, PDF or text document and see every added and removed word, paragraph by paragraph.
Document Metadata CleanerRemove author, company, editing time, dates and custom properties from Word, Excel, PowerPoint and OpenDocument files before sharing.
Document Metadata ViewerSee the hidden properties of Word, Excel, PowerPoint, OpenDocument, RTF and PDF files — author, company, dates, comments, tracked changes.
DOCX EditorOpen, edit and save Word .docx documents in your browser — text, headings, lists, links, tables and images. No Word, no upload.
DOCX MergeMerge several Word .docx documents into one, in the order you choose, keeping formatting, images, tables and lists. No upload.
DOCX to HTMLConvert Word .docx documents to clean, semantic HTML — headings, lists, tables, links and images — with a live preview. No upload.
DOCX to MarkdownConvert Word .docx documents to Markdown with headings, lists, links and GitHub-style tables — for READMEs, wikis and docs. No upload.
DOCX to RTFConvert Word .docx documents to Rich Text Format (.rtf) for WordPad, TextEdit, older Word versions and legacy systems.
HTML to DOCXConvert HTML to an editable Word .docx document with real headings, lists, tables, links and images. Live preview; nothing is uploaded.
Invoice GeneratorCreate a professional PDF invoice in minutes: GST (CGST, SGST, IGST) or VAT, discounts, shipping, logo, bank and UPI details, amount in words.
Markdown to DOCXConvert Markdown to a Word .docx document with real headings, lists, tables, links, quotes and code blocks. Live preview; no upload.
ODT to DOCXConvert OpenDocument text (.odt) from LibreOffice or OpenOffice to Word .docx, keeping headings, lists, tables, links and pictures.
RTF to DOCXConvert RTF documents to Word .docx, keeping headings, formatting, lists, tables, links and pictures. Preview first; nothing is uploaded.
TXT to DOCXConvert text files to Word documents with your font, size, spacing and page layout, or Word documents to plain text. Batch, no upload.
Data & Spreadsheet
12
CSV CleanerClean messy CSV files: trim spaces, remove invisible characters, empty rows and empty columns, fix line breaks in cells, change the separator.
CSV DeduplicatorRemove duplicate rows from a CSV — whole rows or by chosen columns like email — ignoring case and spaces, keeping the first or last copy.
CSV SorterSort CSV rows by up to three columns — as text, numbers or dates, ascending or descending — keeping the header on top.
CSV to ExcelConvert CSV or TSV files to Excel .xlsx with real numbers, a bold frozen header with filters and sensible column widths. Several CSVs → one workbook.
CSV to JSONConvert CSV or TSV to JSON: array of objects, array of arrays or keyed by a column, with number detection and nested objects from dot.path headers.
CSV ViewerOpen a CSV or TSV file as a readable table: sort by any column, filter rows, page through large files, and save the view as CSV or Excel.
Excel to CSVConvert Excel .xlsx sheets to CSV — one sheet or all sheets as a ZIP — with comma, semicolon or tab, formulas as values and dates as yyyy-mm-dd.
Extract Formulas from ExcelList every formula in an Excel or OpenDocument workbook with its cell, value and functions, and export the list.
JSON to CSVConvert JSON to CSV for Excel and Google Sheets. Nested objects become columns, arrays are handled your way, long numbers stay exact. Private.
Split Excel Sheets into Separate FilesSave each sheet of an Excel or OpenDocument workbook as its own .xlsx or CSV file, keeping the formatting.
XML FormatterBeautify, minify and validate XML with the exact line and column of any error, and convert XML to JSON. Private, runs in your browser.
YAML FormatterValidate and format YAML with exact error lines, keep comments, and convert YAML to JSON or JSON to YAML. For Kubernetes, Compose and CI files.
Web & SEO
9
Hreflang GeneratorGenerate hreflang tags for multilingual and multi-region sites — HTML, XML sitemap or HTTP header — with language and country codes checked.
Keyword Density CheckerFind the most frequent words and phrases in your text or page HTML, with counts and density, and check a target keyword.
Meta Tag GeneratorGenerate the title, meta description, canonical, robots, Open Graph and Twitter / X tags for a page, with Google and social previews.
Robots.txt Generator & TesterCreate a robots.txt with rules per crawler, AI crawler blocking and sitemap lines, then test any URL against any robots.txt file.
Schema Markup GeneratorGenerate JSON-LD schema markup for articles, products, local businesses, FAQs, events, recipes, jobs and more, and validate existing markup.
Sitemap ValidatorCheck an XML sitemap or sitemap index against the sitemaps.org rules: syntax, namespace, URLs, lastmod dates, changefreq, priority, limits.
Slug GeneratorTurn titles into clean, SEO-friendly URL slugs: lower case, accents and other alphabets transliterated, stop words removed, any length.
UTM BuilderBuild campaign links with UTM parameters for Google Analytics: presets, consistent formatting, bulk links, editing tagged links and a QR code.
XML Sitemap GeneratorCreate a valid XML sitemap from a list of URLs or a CSV: duplicates removed, dates checked, split into files of 50,000 URLs with an index.
OCR & Scanning
5
Business Card ScannerScan a business card photo into a contact: name, title, company, phones, email, website and address — saved as a vCard with a QR code.
Document ScannerTurn photos of documents and receipts into a clean, straight PDF: automatic edge detection, perspective fix, shadow removal, black and white.
Image to Text (OCR)Extract text from photos, screenshots, scans and receipts in 16 languages incl. Hindi, Marathi and Tamil. Copy or save as .txt. No upload.
PDF OCRMake scanned PDFs searchable: OCR recognises the text (English, Hindi, Spanish, French, German) and adds an invisible text layer. Private.
Receipt OCRScan a receipt photo and get the shop, date, total, tax and items as editable fields — then download CSV or JSON for expenses.
Archive & File
12
7Z ExtractorOpen 7-Zip (.7z) archives in your browser without installing 7-Zip: list the files, extract one or all, including password-protected 7z.
Archive ViewerLook inside ZIP, 7Z, RAR and TAR archives in your browser — every file with its size and date — and save any of them.
Duplicate File FinderFind identical files in a folder or a set of files by their content (SHA-256), with the space wasted and a CSV report.
File Size AnalyzerSee a file's exact size in bytes, KB and KiB, size on disk, upload time, real type, entropy and SHA-256.
File Type DetectorFind out what a file really is from its content (magic bytes), not its name, and see if the extension is wrong.
GZIP CompressorCompress files to .gz with gzip — one .gz for each file — and see how much smaller they get. Runs in your browser.
GZIP DecompressorUnpack .gz files in your browser to get the original file back — logs, CSV, JSON, SQL dumps — safely and without software.
RAR ExtractorOpen RAR files (RAR 4 and RAR 5) in your browser without WinRAR: list the files, extract one or all. Works on Mac, phones and Chromebooks.
TAR CreatorPack files and folders into a .tar or compressed .tar.gz archive, keeping folder structure and dates — in your browser.
TAR ExtractorOpen TAR, TAR.GZ / TGZ, TAR.BZ2 and TAR.XZ archives in your browser: see every file and extract one or all, without installing anything.
ZIP CreatorCreate a ZIP file from files and whole folders in your browser, keeping the folder structure, with normal, maximum or no compression.
ZIP ExtractorOpen ZIP files in your browser: see the files and folders inside, extract one file or everything, including password-protected ZIPs.
Security & Privacy
23
AES EncryptionEncrypt and decrypt text or files with a password using AES-256-GCM and PBKDF2 — in your browser, with nothing uploaded.
API Key GeneratorGenerate secure random API keys, tokens and secrets of 128–512 bits in Base62, hex, Base64, Base64URL or Base32, with an optional prefix.
Argon2 Hash GeneratorHash passwords with Argon2id, Argon2i or Argon2d — memory, iterations and parallelism adjustable — and verify encoded $argon2 hashes.
Bcrypt GeneratorHash a password with bcrypt at the cost you choose, or check a password against an existing $2a$, $2b$ or $2y$ bcrypt hash.
Certificate DecoderDecode SSL/TLS certificates, chains, CSRs and public keys in PEM or DER: subject, issuer, expiry, SANs, key size, extensions and fingerprints.
Cookie AnalyzerAnalyse Set-Cookie headers: Secure, HttpOnly, SameSite, expiry, domain, prefixes and size, with problems browsers reject and a fixed header.
CSP GeneratorBuild a Content-Security-Policy header or meta tag from a strict starting point, and check any policy for common weaknesses.
CVSS v3.1 CalculatorCalculate CVSS v3.1 base, temporal and environmental scores and severity from metrics or a vector string.
Password Breach CheckerCheck if a password has appeared in a data breach — privately: only 5 characters of its hash are sent (k-anonymity), never the password.
Password Entropy CalculatorCalculate the entropy in bits of a random password, passphrase or PIN, the number of combinations and how long it would take to guess.
Password GeneratorGenerate strong random passwords and memorable passphrases. Choose length and characters; see entropy and crack time. Never stored or sent.
Password Strength CheckerCheck how strong a password really is: common passwords, words, names, keyboard patterns and dates detected, crack-time estimates and tips.
PBKDF2 GeneratorDerive a key from a password with PBKDF2 (HMAC-SHA-256, SHA-512 and more) — salt, iterations and length adjustable, hex or Base64 output.
Permissions-Policy GeneratorBuild the Permissions-Policy header that turns off the camera, microphone, location and other browser features your site doesn't use.
PGP Key GeneratorCreate an OpenPGP key pair (ECC Curve25519 or RSA 4096) with a passphrase, expiry and revocation certificate — for email and file encryption.
PIN GeneratorGenerate secure random PIN codes of 4 to 12 digits that avoid common, repeated, sequential, year and date patterns. Made in your browser.
Random Bytes GeneratorGenerate cryptographically secure random bytes for keys, salts, nonces and tokens — as hex, Base64, Base64url, byte arrays or a file.
RSA Key GeneratorGenerate RSA key pairs (2048, 3072 or 4096 bits) as PEM, OpenSSH and JWK, for signing or encryption — made on your device.
Secret Pattern ScannerFind API keys, tokens, private keys and passwords in pasted text or a text file, shown masked. Nothing is uploaded.
Security Headers CheckerCheck a website's HTTP security headers — HSTS, CSP, X-Frame-Options, Referrer-Policy and more — get a grade and how to fix each gap.
security.txt GeneratorCreate a valid security.txt file (RFC 9116) so researchers know how to report vulnerabilities — with checks for every field.
SRI Hash GeneratorCreate Subresource Integrity hashes (sha384 and more) for scripts and stylesheets, with the ready script or link tag to paste.
TOTP Code GeneratorLive 2FA codes (TOTP, RFC 6238) from a Base32 secret or otpauth link, with SHA-1/256/512, 6 or 8 digits and a QR code for testing.
Health & Medical
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A1C CalculatorConvert HbA1c to estimated average glucose (mg/dL and mmol/L) and to mmol/mol, or average glucose back to A1C, with the ADA ranges.
Blood Pressure CheckerCheck which blood pressure category your reading falls in — normal, elevated, stage 1, stage 2 or crisis — and what to do next.
BMI CalculatorCalculate your body mass index in metric or imperial units and see your WHO weight category, the healthy weight range for your height and a visual scale.
BMR CalculatorCalculate your basal metabolic rate with the Mifflin-St Jeor, Harris-Benedict and Katch-McArdle formulas, plus daily calories for each activity level.
Body Fat CalculatorEstimate your body fat percentage with the US Navy tape-measure method or from BMI, with fat mass, lean mass and the ACE category.
Calorie Deficit CalculatorHow many calories to eat each day to reach your goal weight at a safe pace, with the daily deficit, the expected goal date and safety warnings.
Calories Burned CalculatorEstimate calories burned walking, running, cycling, swimming, at the gym and more, from your weight, the activity and how long you do it.
Carbohydrate CalculatorHow many carbs a day? Grams of carbohydrate from your calories for standard, moderate, low-carb or keto eating, per day and per meal.
Cholesterol Ratio CalculatorWork out your total-to-HDL cholesterol ratio, non-HDL cholesterol, LDL/HDL and triglyceride/HDL ratios, in mg/dL or mmol/L.
eGFR CalculatorEstimate kidney function (eGFR) from serum creatinine, age and sex with the CKD-EPI 2021 equation, in mg/dL or µmol/L, with the CKD stage.
Fat Intake CalculatorHow much fat should you eat? Daily grams from your calories, the recommended 20–35% range and the saturated fat limit.
Fiber Intake CalculatorHow much fiber do you need? Daily grams by age and sex, from your calories, and the fiber in common foods.
Gestational Age CalculatorHow many weeks pregnant are you? Gestational age in weeks and days on any date, from your last period, due date or conception date.
Ideal Weight CalculatorIdeal body weight for your height and sex with the Devine, Robinson, Miller and Hamwi formulas and the healthy BMI weight range.
Lean Body Mass CalculatorEstimate your lean body mass and fat mass with the Boer, James and Hume formulas, or exactly from a known body-fat percentage.
Macro CalculatorWork out daily protein, carbs and fat in grams from your calories and a macro split — balanced, lower carb, higher protein, keto or custom.
MAP CalculatorCalculate mean arterial pressure (MAP) and pulse pressure from a blood pressure reading, with the usual normal ranges.
One Rep Max CalculatorEstimate your one-rep max (1RM) from a set of reps with the Epley, Brzycki and Lombardi formulas, plus training loads from 100% to 50%.
Ovulation CalculatorFind your most fertile days, estimated ovulation date and next period for the next six cycles, with a calendar of your current cycle.
Pace CalculatorWork out running pace, finish time or distance in km or miles, with 5K, 10K, half and full marathon presets, splits and race time predictions.
Period CalculatorPredict your next periods: the next six start and end dates from your last period and cycle length, with a window for irregular cycles.
Pregnancy Due Date CalculatorEstimate your baby's due date from your last period, conception date or IVF transfer, with how many weeks pregnant you are and key dates.
Pregnancy Weight Gain CalculatorRecommended pregnancy weight gain from your pre-pregnancy BMI, the healthy range for your current week, and how your gain compares.
Protein CalculatorHow much protein do you need? Daily grams from your body weight and goal — sedentary, active, building muscle, losing weight or 65+.
Sleep CalculatorHow much sleep do you get, and is it enough for your age? Plus the best bedtimes and wake-up times for full 90-minute sleep cycles.
Target Heart Rate CalculatorFind your maximum heart rate and the five training zones — by age, or with the Karvonen method using your resting heart rate.
TDEE CalculatorFind your total daily energy expenditure — the calories you burn each day — with calorie targets to lose, keep or gain weight and a macro split.
Waist-to-Height Ratio CalculatorCalculate your waist-to-height ratio (WHtR), see which band it falls in, and the waist size that keeps it under 0.5.
Water Intake CalculatorHow much water should you drink a day? An estimate from your weight, exercise and climate, in litres, glasses and fluid ounces.
QR & Barcode
5
Barcode GeneratorCreate Code 128, EAN-13, EAN-8, UPC, Code 39, ITF-14, Codabar, MSI and Pharmacode barcodes and download them as SVG or PNG.
Barcode ScannerScan EAN, UPC, ISBN, Code 128, Code 39 and other barcodes with your camera or from a photo, and check the number and country prefix.
EAN-13 Barcode GeneratorMake EAN-13 and ISBN barcodes: the check digit is calculated or verified, one at a time or many at once as a ZIP of SVG or PNG files.
QR Code GeneratorCreate free QR codes for links, text, Wi-Fi, email, phone, SMS, contacts and locations. Custom colours and logo, PNG or SVG. They never expire.
QR Code ScannerScan QR codes with your camera or from a photo or screenshot. See links, Wi-Fi passwords, UPI payments and contacts safely. No upload.
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