Free Online MP3 Converter
Convert any video or audio file to MP3 in your browser. No uploads — your files never leave your device. Fast, private, and free.
How to Convert Any File to MP3
Drop Your Files Into the MP3 Converter
Drag in videos like MP4, AVI, or MKV, audio files like WAV, FLAC, or M4A, or a mix of both. The MP3 converter auto-detects each format.
Pick Your MP3 Bitrate
Choose a bitrate that fits your use case. 128 kbps for podcasts and voice recordings. 192 kbps for balanced quality. 320 kbps for music where fidelity matters.
Click Convert
The MP3 encoder runs entirely in your browser via WebAssembly. Each file is decoded, re-encoded to MPEG Layer III, and ready in seconds. Nothing is uploaded.
Download Your MP3 Files
Download each MP3 individually or grab the full batch. Files are standard MP3 — compatible with every player, phone, and streaming platform.
Why Use This MP3 Converter
One tool that accepts 20+ input formats and always outputs clean, playable MP3. The only converter you need to bookmark.
100% Local — No Upload
FFmpeg WebAssembly handles the full decode-encode pipeline on your device. Not a single byte of your media reaches any server. Complete privacy by design.
Free Forever, No Account
Use this MP3 converter without signing up, logging in, or watching ads. No premium tier, no daily cap. Unlimited conversions, always free.
Accepts 20+ Input Formats
MP4, MOV, AVI, MKV, WebM, FLV, WMV, WAV, FLAC, AAC, OGG, M4A, WMA, AIFF, Opus, 3GP, and more. Video or audio — this MP3 converter handles them all.
Adjustable Bitrate
Full control over output quality. 64 kbps for tiny voice memos, 128 kbps for podcasts, 192 kbps for general music, 320 kbps for maximum MP3 fidelity. Match bitrate to purpose.
Batch Processing
Add dozens of files at once — different formats, different codecs. The MP3 converter processes each independently. Mix a WAV, two FLACs, and an MP4 in one batch.
Cross-Platform, Zero Setup
Works in Chrome, Firefox, Safari, and Edge on macOS, Windows, Linux, Android, and iOS. No desktop app or plugin needed. Open the page and convert.
Who Uses an MP3 Converter
MP3 remains the universal audio format. Here is why millions of people still convert files to MP3 every day.
Podcasters & Creators
Record on video, then run the file through this MP3 converter for your podcast feed. One recording, two formats — no re-recording or editing suite needed.
Music Listeners
FLAC album too large for your phone? WAV files your car stereo rejects? Convert to MP3 and every device plays them. Smaller files, universal compatibility.
Students & Researchers
Convert recorded lectures and webinars to MP3 for portable, offline listening. Study on the go without streaming or large video files eating storage.
Content Repurposers
Extract voiceover or background music from video assets as MP3. Reuse audio across reels, stories, presentations, and ad campaigns without re-exporting from a video editor.
DJs & Performers
Need MP3 files for DJ software or live sets? Convert WAV, FLAC, or video recordings to MP3 at 320 kbps — the standard bitrate for professional DJ libraries.
Archivists
Create lightweight MP3 listening copies from lossless WAV or FLAC masters. Keep originals for preservation, use MP3 for everyday access and sharing.
MP3 Converter — FAQ
Convert Any File to MP3 Now
Drop a video or audio file, pick your bitrate, and download MP3 — free, instant, and private.