Free Online MP3 Converter
Need an MP3 from a video clip, podcast recording, or audio file in another format? Our free MP3 converter extracts audio and saves it as a downloadable MP3 — directly in your browser. No software to install, no account required, and no files sent to a remote server. Upload a video or audio file, pick your quality, and download the MP3 in seconds.
Whether you are preparing a voice memo for sharing, extracting audio from a screen recording, converting a WAV master to MP3 for email, or turning a phone video into a podcast clip, this tool handles the job privately on your device. It supports common inputs like MP4, MOV, WebM, WAV, M4A, FLAC, and OGG.
How to Use the MP3 Converter
Drag and drop your file onto the upload area or click to browse. Choose an MP3 quality preset — 128 kbps works well for most cases. Click Convert to MP3 and wait while the tool processes your file locally. Preview the result with the built-in player, then download your MP3. The first conversion may take a moment while the audio engine loads; later conversions are faster.
Key Features
- Convert video and audio files to MP3
- Bitrate presets from 64 kbps to 320 kbps
- Built-in audio preview before download
- Drag-and-drop upload
- 100% client-side — your files never leave your browser
- Free with no sign-up
Frequently Asked Questions
Is my file uploaded to a server?
No. Conversion runs entirely in your browser using WebAssembly. Your video or audio file never leaves your device unless you choose to download the result.
What formats can I convert to MP3?
You can convert most common video formats (MP4, MOV, WebM, AVI, MKV) and audio formats (WAV, M4A, AAC, OGG, FLAC, WMA) to MP3. If your file plays on your computer, it will likely work here.
Which bitrate should I choose?
128 kbps is a good default for most uses. Choose 64 kbps for smaller files (podcasts, voice), 192 kbps for higher quality music, or 320 kbps when you want the best MP3 quality.
Why does the first conversion take longer?
The first time you use the tool, your browser downloads the audio conversion engine (about 30 MB). After that, it is cached and subsequent conversions start faster.
Can I convert large video files?
Large files depend on your device memory and processor. Very long or high-resolution videos may be slow or fail on low-memory devices. For best results, try shorter clips or lower-resolution sources.
Does this work on mobile?
Yes, on modern mobile browsers. Performance varies by device — powerful phones handle short clips well, but desktop browsers are generally faster for longer files.