The fastest way to
convert anything to MP3
Drop your audio or video here
or click to browse · up to 2 GB per file
Supports MP3, WAV, FLAC, M4A, AAC, OGG, OPUS, WMA, MP4, WebM, MOV, MKV, AVI, 3GP and more
🔒 Your files are processed entirely in your browser. Nothing is uploaded.
Why ConvertingMP3
Built for the modern web
We rebuilt MP3 conversion from the ground up using the latest browser technology — no servers, no waiting, no tracking.
100% Private
Your files are processed entirely in your browser. Nothing is ever uploaded.
Lightning Fast
Native browser engine converts audio in seconds, not minutes.
No Signup
No accounts, no email, no daily limits. Just open and convert.
Studio Quality
Up to 320 kbps MP3 output with full bitrate control.
Works Offline
Once loaded, you can keep converting without internet.
Any Device
Optimized for desktop, tablet and mobile. iOS & Android friendly.
Toolkit
Everything MP3 in one place
A complete suite of professional audio tools. All free, all browser-based, all forever.
MP3 Converter
Convert WAV, FLAC, M4A, OGG, AAC, OPUS, WMA & more to MP3.
Open tool FreeVideo to MP3
Extract crystal-clear audio from MP4, MOV, MKV, WebM videos.
Open toolMP3 Cutter & Trimmer
Cut a perfect ringtone or sample with sample-accurate precision.
Open toolMP3 Merger
Join multiple audio files into one MP3 with crossfade support.
Open tool AIVocal Remover
Make karaoke tracks instantly. Remove or isolate vocals.
Open tool StudioAudio Enhancer
Boost clarity, bass, presence and loudness with one click.
Open toolSpeed Changer
Change playback speed for podcasts, audiobooks, and music.
Open toolVolume Booster
Increase volume of quiet recordings with smart normalization.
Open toolID3 Tag Editor
Edit MP3 title, artist, album, year, genre and album art.
Open toolVoice Recorder
Record from your microphone and save directly as MP3.
Open toolAudio Reverser
Play any audio file backwards. Find hidden messages 🤫
Open toolMP3 Compressor
Reduce MP3 file size by up to 80% without quality loss.
Open toolHow it works
Three steps. Zero friction.
Drop your file
Drag any audio or video onto the page, or pick from your device. Mobile gallery and Files app supported.
Pick quality
Choose from 64 kbps to 320 kbps MP3 quality. Or pick lossless WAV. Default settings work great.
Download MP3
Conversion happens in your browser in seconds. Click download and you are done.
FAQ
Frequently asked questions
Is ConvertingMP3 really free?
Yes, ConvertingMP3 is 100% free with no hidden costs, no watermarks, no signup, and no daily limits. We are funded by non-intrusive ads only.
Are my files uploaded to a server?
No. All conversion happens directly inside your browser using modern Web Audio technology. Your files are never sent to any server, making this the most private MP3 converter available.
What audio and video formats can I convert to MP3?
You can convert WAV, FLAC, M4A, AAC, OGG, OPUS, WMA, MP4, WebM, MOV, AVI, MKV, 3GP and many more formats to MP3 with one click.
What MP3 quality (bitrate) does the converter support?
ConvertingMP3 supports bitrates from 64 kbps up to 320 kbps so you can balance file size and audio quality.
Is there a file size limit?
There is no fixed limit; you are only limited by your device memory. Files up to 2 GB work smoothly on most modern devices.
Does ConvertingMP3 work on mobile?
Yes, ConvertingMP3 is fully mobile-optimized and works on iPhone, iPad, Android phones and tablets without installing any app.
Ready to convert your first file?
Free forever. No accounts. No tracking. The simplest MP3 converter on the internet.
Convert to MP3 now