AMR to MP3 Converter
Convert AMR voice recordings to MP3. Runs in your browser, no uploads.
Drop files here
or click to browse · paste from clipboard
Accepts .AMR, .3GP · Up to 1,000 files
How it works
Drop your files
Drag and drop, click to browse, or paste from clipboard. Up to 1,000 files at once.
Choose settings
Adjust quality, format, and other options to match your needs.
Click Convert
Everything runs in your browser via WebAssembly. AMR to MP3 Converter happens locally — no server involved.
Download
Download files individually or grab all at once as a ZIP.
Frequently asked questions
AMR stands for Adaptive Multi-Rate — a compressed audio format designed for phone calls and voice recordings. It was the default voice note format on Nokia and older Android phones, and is still used by some feature phones. AMR files are tiny (a few KB per second) but the audio quality is noticeably lower than MP3 — designed for speech clarity over phones, not music.
AMR is a telecom format — most desktop media players and web browsers don't support it by default. VLC and ffmpeg can play AMR, but converting to MP3 is the easier path. Once converted, the file plays everywhere: Windows Media Player, QuickTime, your phone, your car stereo.
Older versions of WhatsApp (pre-2017) saved voice messages as AMR files on Android. Modern WhatsApp uses Opus (.opus) instead. If your voice notes end in .amr, use this tool. If they end in .opus or .ogg, use the OPUS to MP3 tool instead.
The MP3 quality is limited by the source AMR file. AMR is a low-bitrate voice codec — it captures speech clearly but has a narrow frequency range and audible compression. Converting to MP3 will not recover lost quality. What you'll get is an MP3 that sounds exactly like the AMR, but plays everywhere.
Yes. Drop as many AMR or 3GP files as you need. ConvertYard processes them one at a time in your browser and packages all the MP3s into a single ZIP for download. There is no hard file count limit, though very large batches will take proportionally longer.
Never. Conversion runs entirely in your browser using ffmpeg.wasm — a full media processing engine compiled to WebAssembly. Your files never leave your device. ConvertYard's servers only deliver the tool code — they never see your files.