Audio Converters
Every audio tool here runs entirely in your browser using WebAssembly. Drop a file, pick a format, download the result — nothing is ever uploaded.
All audio converters
Which format should I use?
MP3 is the universal audio format — 30 years old, supported by every device, every app, every web player ever made. Modern formats (M4A/AAC, OGG, Opus, FLAC) compress better or preserve quality more faithfully, but compatibility is the reason MP3 refuses to die. WAV is uncompressed CD-quality audio — huge files, perfect for editing masters or recording raw. FLAC is lossless compression — smaller than WAV but still much bigger than MP3. M4A is Apple's AAC container, standard output from GarageBand and Voice Memos. OGG is an open format common in older Linux audio and some game engines. For sharing, uploading, embedding in websites, or sending to someone whose setup you don't know — MP3 is almost always the right answer.
| Format | Best for | File size | Universal support |
|---|---|---|---|
| MP3 | Sharing, streaming, podcasts, web | Small (~1 MB/min at 192k) | Yes — everywhere |
| WAV | Editing masters, raw recordings | Huge (~10 MB/min) | Yes |
| M4A | Apple ecosystem, AirPods, iPhone | Small | Good, not universal |
| OGG | Open-source tools, game audio | Small | Limited |
| FLAC | Lossless archival, audiophile | Medium (~3–5 MB/min) | Good on desktop, limited on web |
Frequently asked questions
Why convert to MP3 when modern formats compress better?
Compatibility. Podcast hosts, WordPress audio blocks, Discord, voicemail systems, and every DAW accept MP3 without question. AAC and Opus are technically better but still get rejected in enough workflows that MP3 stays the safe choice.
Will I lose quality converting to MP3?
A little. MP3 is lossy — some frequencies get discarded. At 192 kbps the loss is inaudible for most listeners. Converting from a lossless source (WAV, FLAC) is the cleanest path; converting from another lossy format adds a second compression pass.
What bitrate do outputs use?
192 kbps constant bitrate at 44.1 kHz — the sweet spot for size vs. quality that most podcasters and streaming services use.
Is my audio uploaded anywhere?
No. Every converter runs in your browser. Files never leave your device, which is why this is safe for unreleased music, interview recordings under NDA, and confidential voice memos.
Can I batch-convert multiple files?
Yes. Drop or select multiple audio files and they convert sequentially. For more than three files, the output is offered as a ZIP download.
Is there a file size limit?
Practical limit is around 500 MB per file — above that, browser memory starts causing failures. For hour-long lossless masters, a desktop tool like Audacity or ffmpeg is more reliable.