Free Audio Converter — No Signup, No Limits
Convert MP3 ↔ WAV ↔ OGG ↔ M4A and extract audio from MP4, MOV or WebM video — free and unlimited. Other sites cap you at 2–10 conversions a day; here there is no cap at all. No account, no watermark. Everything is processed on your device; your files are never uploaded anywhere.
Drop audio or video files here or click to browse
MP3, WAV, OGG, M4A, FLAC, AAC · MP4, MOV, WebM (audio extracted) · up to 10 files · files stay on your device
First conversion downloads the converter engine (~30 MB) — after that it's cached and fast.
Tip: "Download all" triggers one download per file — your browser may ask permission for multiple downloads once.
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Frequently asked questions
Is this audio converter really free and unlimited?
Yes. No signup, no watermark, no daily caps. Popular converters limit free users to 2–10 files a day and charge $8–20/month beyond that. This one runs entirely in your browser with ffmpeg.wasm, so there is no server cost to throttle you on.
Are my files uploaded to a server?
No. Conversion happens locally on your device. Your audio and video never leave your computer — they can't be stored, viewed, or leaked by us.
Which formats can I convert between?
Input: MP3, WAV, OGG, M4A, FLAC, AAC, Opus — plus video files (MP4, MOV, WebM, MKV) for audio extraction.
Output: MP3, WAV (lossless), OGG, M4A.
What bitrate should I choose?
192 kbps MP3 sounds great for music and is the best size/quality balance. Use 128 kbps for voice/podcasts to save space, 320 kbps for maximum quality. WAV is uncompressed and lossless — pick it for editing, but expect large files.
Why is the first conversion slow?
The first run downloads the conversion engine (~30 MB, cached afterwards). Converting large videos is CPU-intensive — it can take a while on older phones, and very long videos may hit browser memory limits.
Can I extract audio from a video?
Yes — drop any MP4, MOV, or WebM video and choose MP3 or WAV as output. The video track is discarded and you get just the audio, perfect for lectures, podcasts, and music.