You want to pull the audio out of a video and save it as an mp3, but most converter sites make you sign up and upload the file first — not exactly reassuring. pomiai’s Media Converter converts audio and video formats, including mp4 to mp3, entirely inside your browser. Nothing gets sent to a server, so it’s safe to convert personal videos or recordings too. It supports 10+ formats including MP3, WAV, FLAC, OGG, M4A, MP4, WEBM, MOV, AVI, and MKV.
When this comes in handy
- Extracting just the audio (mp3) from a video file
- Converting mov, avi, or mkv videos to mp4 or webm for the web
- Batch-converting several files to the same format and quality at once
- Converting personal videos or recordings without uploading them anywhere
How to use it
- Drag and drop files, or click to select — multiple files are fine.
- Choose the output format and quality; you can apply it to all audio or video files at once.
- Click convert all and everything processes right in your browser.
- Download the finished files when they’re done.
Frequently asked questions
Are my files uploaded to a server?
No. Every conversion runs through the ffmpeg.wasm engine entirely inside your browser. Files are never sent to an external server.
How many files can I convert at once?
There’s no hard limit, but since it uses your browser’s memory, loading many very large files can slow things down. Typical audio files and short videos convert without issue.
How do I set the conversion quality?
For compressed formats like MP3, AAC, or OGG, you can choose a bitrate between 128 and 320kbps. WAV and FLAC are lossless, so no extra setting is needed.
What formats are supported?
10+ formats including MP3, WAV, FLAC, OGG, and M4A for audio, and MP4, WEBM, MOV, AVI, and MKV for video, converting between any of them.
Explore more free pomiai tools → checkpomi.com · YouTube @pomiai_official