Private ffmpeg conversion

Convert WAV to MP3

Turn large WAV recordings into smaller MP3 files for sharing, upload forms, and everyday playback. MP3 is lossy, so keep the WAV if you need the original recording quality.

Drop WAV files here or choose files from your device

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About WAV and MP3 conversion

WAV is common for raw recordings, exports from editors, and archival audio because it can store uncompressed PCM. That fidelity comes with large files, which can be awkward for email, support portals, messaging apps, and phones with limited storage.

This converter encodes WAV input to a 192 kbps MP3 locally with ffmpeg.wasm. The smaller file is useful for listening and sharing, but it is not a lossless archive copy; quiet detail and transients can change during MP3 compression.

The first audio job downloads the bundled ffmpeg WebAssembly engine from this site, roughly 31 MB, and later files reuse it. The WAV itself is never uploaded, so private recordings remain on your device during the conversion.

FAQ

Why convert WAV to MP3?

Use MP3 when a WAV recording is too large for sharing, forms, messaging, or simple playback.

Is WAV to MP3 lossless?

No. MP3 reduces size with lossy compression, so keep the WAV when you need an edit master or archive.

Why is there an engine download?

Browser audio conversion uses ffmpeg compiled to WebAssembly, so the engine downloads once before local processing starts.

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