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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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Audio Converter
Convert audio between MP3, M4A (AAC), OGG (Opus) and WAV — from MP3, WAV, M4A, OGG, Opus and FLAC — one file or many, in your browser.
Convert audio files to the format you need: WAV recordings to MP3 to save space, M4A voice memos from an iPhone to MP3 for Windows or Android, FLAC music to MP3 or AAC for your phone, MP3 to WAV for an editing program, or anything to OGG Opus for the smallest files. The Audio Converter reads MP3, WAV, M4A, AAC, OGG, Opus and FLAC files — and the sound of MP4, MOV and WebM videos — and writes MP3, M4A (AAC), OGG (Opus) or WAV.
Drop one file or up to 50 at once, choose the format and quality, and download the converted files together. The sample rate and stereo or mono are kept where the format allows. Conversion happens in your browser, so your files are never uploaded.
How to use Audio Converter
- Choose or drop one or more audio files.
- Choose the output format: MP3, M4A (AAC), OGG (Opus) or WAV.
- Choose the quality (bitrate) for compressed formats.
- Press Convert and download your files.
Features
- MP3, WAV, M4A, AAC, OGG, Opus and FLAC in, plus the sound of videos.
- MP3, M4A (AAC), OGG (Opus) and WAV out.
- Up to 50 files converted in one go.
- Bitrate choice for MP3, AAC and Opus.
- Expected total size before converting.
- Runs in your browser: no upload, no account.
Which format should I choose?
Lossless formats keep every detail; lossy formats are much smaller and, at good bitrates, sound the same to most listeners.
| Format | Type | Best for | Bitrates offered |
|---|---|---|---|
| MP3 | Lossy | Plays everywhere: cars, old players, every app | 96–320 kbps |
| M4A (AAC) | Lossy | Apple devices, better quality than MP3 at the same size | 96–256 kbps |
| OGG (Opus) | Lossy | Smallest files, excellent for speech; browsers and Android | 64–192 kbps |
| WAV | Lossless, uncompressed | Editing, archiving, audio software | — |
Lossy to lossy
Converting a lossy file (MP3, AAC, Opus) to another lossy format decodes it and compresses it again, which loses a little more detail each time. Choose a bitrate at least as high as the original — 192 kbps or more for music — and the difference stays inaudible. Converting a lossy file to WAV doesn't bring lost detail back; it only makes the file larger and easier to edit. Converting from WAV or FLAC gives the best results, because they hold the full original sound.
Sample rates and channels
Most music is recorded at 44.1 kHz and most video sound at 48 kHz. The converter keeps the original sample rate for MP3 and WAV. AAC is written at 44.1 or 48 kHz as AAC encoders require, and Opus always works at 48 kHz internally, so other rates are converted automatically. Stereo stays stereo and mono stays mono; surround sound is mixed down to stereo.
Common conversions
WAV to MP3 is the classic way to make recordings from a recorder or editing program small enough to share: 192 kbps keeps music sounding the same and cuts the size by about 85 percent. M4A to MP3 makes iPhone voice memos and iTunes purchases play on Windows, Android and car stereos. FLAC to MP3 or AAC puts lossless music on a phone; use 256 or 320 kbps. MP3 to WAV is needed by some editing, DJ and telephony software. OGG to MP3 turns WhatsApp and game audio into a format every player understands.
Private conversion
The files are decoded by your browser's built-in media engine and encoded on your device — MP3 with the open-source LAME encoder, AAC and Opus with the browser's own encoders — so nothing is uploaded and there are no limits on the number of conversions. Each file is checked by its content: a picture or document renamed to .mp3 is refused with a clear message, and files without sound are pointed out.
Frequently asked questions
How do I convert WAV to MP3?
Open the WAV file, choose MP3 and a quality (192 kbps is a good default) and press Convert.
How do I convert M4A to MP3?
Open the M4A file, choose MP3 and press Convert. iPhone voice memos are M4A files.
Can I convert FLAC to MP3?
Yes. Choose MP3 at 256 or 320 kbps to keep the quality close to the FLAC.
Can I convert several files at once?
Yes, up to 50 files in one go; they are all converted to the same format.
Are my files uploaded?
No. Conversion happens in your browser.
Why is WAV so large?
WAV is uncompressed: about 10 MB per minute of stereo at 44.1 kHz.
Can I save as FLAC?
Not yet: FLAC files can be opened but not written. Choose WAV for a lossless result.
Related tools
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.
Audio CompressorReduce the file size of audio — voice notes, podcasts, music — for email, WhatsApp and storage, with presets and size before and after.
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 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 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.
Video ConverterConvert videos between MP4, WebM, MOV and MKV in your browser — fast without quality loss when possible, or re-encoded for best compatibility.