Convert Audio to MP3
For iPhone Voice Memos (.m4a), use an up-to-date Safari or Chrome.
MP3 plays everywhere
Voice Memos on iPhone save as M4A, screen recorders and browsers often produce WEBM or OGG, and studio files are WAV or FLAC. Some players, cars and upload forms only accept MP3. This tool decodes your audio in the browser and encodes it as MP3 (using the LAME encoder), one file or many at once.
Choosing quality
- 64 kbps — speech, lectures, voice notes; very small files.
- 128 kbps — a good default for most audio.
- 192–320 kbps — music where quality matters.
- Mono — halves the size for speech recordings that don't need stereo.
The list shows each file's length, channels and size, then the MP3 size after conversion. Several files download together as a ZIP. Converting an MP3 to MP3 again doesn't improve quality. Files never leave your device.
Frequently asked questions
Are tags like title and artist added?
No. Add them in your music player afterwards.
Can I convert video files?
Use Video to MP3 for MP4 or WEBM videos — it works the same way and lets you pick a range.
Conversion is slow.
Computers are much faster than phones. Closing other tabs helps.
Related tools
- Audio CutterTrim audio on a waveform — set start and end, fade in/out, save as MP3 or WAV
- Video to MP3 (Extract Audio)Pull the soundtrack from MP4, WEBM or MOV videos as MP3 or WAV — whole or a range
- Voice RecorderRecord from your mic, play it back and save as MP3, WAV or WEBM — pause and level meter
- CSV to ExcelConvert CSV to XLSX — auto-detect encoding and delimiter, keep leading zeros
- Excel to CSVXLSX to CSV with UTF-8 (with or without BOM), delimiter and date format options
- Text to Excel TableSplit pasted text from chats, notes or web pages into Excel columns