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Learn and practise programming in your browser. Pick a language: write code, run it in a real terminal and follow the lessons step by step.
Why Shiklo Tools?
Simple, private tools that just work — right in your browser.
- Private Everything runs in your browser. Files are never uploaded.
- Secure Encrypted HTTPS connection, and nothing you open is stored on our servers.
- No login required No account, no sign-up, no email. Just open a tool and use it.
- Fast No upload or download wait — results appear instantly.
- Free All tools are free to use, with no limits.
- Works everywhere Phone, tablet or computer, in any modern browser.
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Frequently asked questions
Are my files or text uploaded anywhere?
No. Every tool runs inside your browser on your own device. Nothing you enter or open is sent to a server.
Do I need to create an account or log in?
No login is required. There are no accounts — open any tool and start using it straight away.
Are the tools really free?
Yes. All tools are free, with no limits or watermarks. The site is supported by ads.
Does it work on my phone?
Yes. The tools work in any modern browser on phones, tablets and computers.
Can I use the tools offline?
Once a tool has loaded it does its work on your device, so it keeps working even if your connection drops.
Which file types are supported?
PDF, Word, Excel, PowerPoint, OpenDocument and RTF documents, JPG, PNG, WebP, HEIC, AVIF, GIF and BMP images, MP4, MOV, WebM and MKV videos, MP3, WAV, M4A, OGG and FLAC audio, ZIP, 7z, RAR, TAR and GZIP archives, CSV, JSON, XML and plain text. Each tool lists exactly what it opens.
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CSV Viewer
Open 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.
Look inside a CSV file without Excel or a spreadsheet program. Open the file, drop it on the page or paste its contents, and the CSV Viewer shows it as a clean table with column headings and row numbers. The separator — comma, semicolon, tab or pipe — is detected automatically, quoted values with commas or line breaks inside are read correctly, and accented and non-Latin characters display properly.
Click any column heading to sort (numbers sort as numbers, text sorts naturally so A2 comes before A10), type in the filter to show only matching rows, and page through files with thousands of rows. When the view shows what you need, save it as a new CSV or as an Excel workbook. The file is read in your browser — nothing is uploaded.
How to use CSV Viewer
- Open a .csv or .tsv file, drop it on the page, or paste CSV text.
- Check the separator and whether the first row holds the column names.
- Click a column heading to sort; type in the filter to find rows.
- Save the filtered, sorted view as CSV or Excel if you need it.
Features
- Separator detected: comma, semicolon, tab or pipe (or choose one).
- Quoted values, line breaks in cells and Unicode handled correctly.
- Sort by any column: numeric, natural text order, empty cells last.
- Filter rows by any text, across all columns.
- Pages of 100 rows for large files; row and column count.
- Save the view as CSV (Excel-friendly) or as an .xlsx workbook.
- Runs in your browser: your data is never uploaded.
Why CSV files look messy
CSV (comma-separated values) is plain text: one line per row, values separated by a character. Simple in principle, but files differ in the details, which is why opening them directly often gives jumbled columns.
| Situation | How the viewer handles it |
|---|---|
| European files use semicolons | Separator detected from the first rows |
| Values contain commas, e.g. “Lee, Ann” | Quoted values read as one cell |
| Addresses with line breaks inside a cell | Kept inside the cell |
| Rows with missing values at the end | Padded so columns line up |
| Tab-separated (.tsv) files | Detected or chosen as Tab |
Sorting and filtering
Click a heading once to sort ascending, again for descending, and a third time to return to the file's order. Numbers are compared as numbers, so 9 comes before 10, and text is compared the way people read it, ignoring case. Empty cells always go last. The filter keeps rows where any cell contains the text you type, ignoring case, and the counter shows how many rows match. Sorting and filtering never change your file — only the view.
Saving the view
Save view as CSV writes exactly the rows you see, in the order you see them, with standard quoting and a UTF-8 marker so Excel shows accents correctly. Save view as Excel creates an .xlsx workbook with a bold, frozen header row and filters, numbers stored as numbers and values like ZIP codes or IDs with leading zeros kept as text. To convert whole files without viewing them, use CSV to Excel; to tidy a messy file, use the CSV Cleaner.
Large files and privacy
The viewer shows 100 rows per page, so even files with tens of thousands of rows stay quick to scroll. Files up to about five million cells can be opened; larger ones would exceed what a browser tab can handle comfortably. Your data stays on your device: the file is read locally, nothing is uploaded, and nothing is kept after you close the page — important for customer lists, exports and financial data.
Frequently asked questions
How do I open a CSV file without Excel?
Drop the CSV file on this page or open it with the Open file button; it is shown as a table right away.
My CSV uses semicolons. Does that work?
Yes. The separator is detected automatically, or you can choose comma, semicolon, tab or pipe.
Is my data uploaded?
No. The file is read and displayed in your browser only.
Can I sort and filter?
Yes. Click a column heading to sort, and type in the filter box to show matching rows.
How big can the CSV be?
Up to about five million cells, shown 100 rows at a time.
Can I export to Excel?
Yes. Save view as Excel creates an .xlsx file of the current view.
Does it open TSV files?
Yes, tab-separated files are detected automatically.
Related tools
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 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.
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.
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.
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.