Video to MP3 Converter
Runs in your browser — your files are never uploaded.
Pull the audio track out of any video as an MP3 — a lecture recording, a screen capture, a clip you just want the sound from. OkConverter runs a real copy of ffmpeg compiled to WebAssembly directly in your browser, so the video is never uploaded anywhere.
How to convert Video to MP3
- 1
Drop your video file onto the box, or click to choose one.
- 2
OkConverter loads the conversion engine (one-time per session) and extracts the audio locally.
- 3
Click “Download” to save the MP3.
Share
Embed this tool on your site
Paste this where you want the tool to appear. It runs entirely in your visitor's browser — no uploads, no account, no tracking.
Please keep the attribution line — it's what keeps these tools free.
Need a different size, a dark theme, or a different tool? Build an embed lets you preview it first.
Frequently asked questions
Why does the first conversion take longer?+
The tool loads a real build of ffmpeg compiled to WebAssembly (about 31 MB) the first time you use it on this page. It stays loaded for the rest of your session, so later conversions are much faster.
Is my video uploaded anywhere?+
No. Once the engine has loaded, the actual audio extraction happens entirely inside your browser tab — the video file itself is never sent to a server.
What audio quality does it produce?+
MP3 at roughly 190kbps variable bitrate (libmp3lame quality level 2) — near-transparent for speech and music alike, without producing an unnecessarily large file.
What if my video has no audio track?+
You’ll get a clear error rather than a silent empty file — check the source video actually has sound.
Is there a file size limit?+
There’s a 500MB input cap to keep the conversion from hanging your tab, but no server-side limit beyond that — the real constraint is your device’s available memory.