Help & FAQ

Everything about SnipSound's free audio tools and music library — file size limits, browser recommendations, privacy, and how each tool works.

1. What's the maximum file size I can upload?

There's no fixed cap. Because everything runs in your browser (rather than uploading to a server), the practical limit is your device's available memory, not a server quota. Other online tools cap you at 50–250 MB; we don't.

In practice the soft limits look like this:

What "size" means depends on the format: a 1 GB WAV holds about 90 minutes of CD-quality audio, while a 1 GB MP3 holds something like 12–15 hours.

2. Which browser should I use?

All SnipSound tools work in any modern browser, but for the smoothest experience — especially with large files:

• CChrome, EEdge, and BBrave (all Chromium-based) — handle large audio buffers well and have fast Web Audio implementations. Best overall pick.
• FFirefox — great performance, similar to Chrome for our workloads.
• SSafari (Mac) — works fine for typical files; switch to Chrome/Brave for files over ~1 GB.
• Mobile: iOS Safari and Android Chrome both work, with the memory caveats above. Conversion of long files may be slow on older phones.

If you're regularly working with very large files (full albums, long podcasts, multi-hour recordings), a desktop browser is strongly recommended.

3. Is my file uploaded to a server?

No. Every audio tool on SnipSound — Audio Trimmer, BPM Finder, Key Finder, Audio Reverser, Speed Changer, Volume Booster, Audio Converter, and any tool under /tools/ — runs entirely in your browser using the Web Audio API. Your audio files never leave your device.

This is fundamentally different from most online audio tools, which upload your file to a server, process it there, and let you download the result. Our approach means:

• No upload time — the file is "uploaded" instantly because it isn't actually transferring anywhere.
• No file size cap imposed by a server quota.
• No risk of your unreleased music or private recordings sitting on someone else's server.
• Nothing for us to lose, leak, or be subpoenaed for, because we never receive your files in the first place.

Full details on the Privacy Policy page.

4. Does this work offline?

Yes — once a tool's page has loaded, it works without an internet connection. The tools are pure HTML/CSS/JavaScript with no backend calls during processing, so you can use SnipSound on a plane or anywhere without WiFi after the initial page load.

Caveat: streaming our music tracks from /playlist does require internet (the audio files are served from our CDN).

5. Which audio formats are supported?

For input, anything your browser can decode — in practice that covers:

• MP3 — ubiquitous, supported everywhere.
• WAV — lossless, large files.
• OGG (Vorbis) — lossy, common in games and Wikipedia.
• FLAC — lossless compressed.
• AAC — lossy, slightly better than MP3 at the same bitrate.
• M4A — usually AAC inside a container; Apple's standard.

For output, our tools currently export WAV (lossless 16-bit PCM) and MP3 (128–320 kbps). Other formats like OGG, FLAC, AAC, and M4A as output are on the roadmap and will require an in-browser FFmpeg path.

6. What does each tool do?

• Audio Trimmer — cut and trim audio with a visual waveform editor. Drag handles, set fade in/out, lock to a fixed length (great for matching a video duration), export as WAV or MP3.
• BPM Finder — detect the tempo (beats per minute) of any track.
• Key Finder — detect the musical key and scale of any track, including Camelot code for DJ mixing.
• Audio Reverser — play audio backwards. Useful for sound design, sample creation, and creative exploration.
• Speed Changer — slow down or speed up audio from 0.25x to 4x. Useful for transcribing lyrics, podcast time-saving, or sound design.
• Volume Booster — make quiet audio louder. Manual gain or auto-normalize, with soft-clip protection to prevent harsh distortion.
• Audio Converter — convert between MP3 (128–320 kbps) and WAV. Per-format landing pages exist for MP3 to WAV, WAV to MP3, and others.

7. Does it work on iPhone and Android?

Yes. The interface is fully responsive and the Web Audio API is supported on iOS Safari and Android Chrome. Touch-drag works on the waveform editors. Memory limits are tighter than desktop (see the table in section 1), so on mobile, stick to files under ~500 MB for the smoothest experience.

8. Is SnipSound really free?

Yes, all tools and music previews are free with no signup, no watermarks, no upload limits, and no ads. We may add a paid tier in the future for things like cloud-based transcription that genuinely require a backend, but the existing client-side tools will always be free.

9. How do I report a bug or request a feature?

Open the contact options on the homepage. If you found a bug, including the browser you were using, the file you tried, and a description of what happened helps us reproduce it.