Audio Lab
FFmpeg.wasm audio tools for mastering, conversions, and creative tweaks—free, in-browser, and free from watermarks.
Every tool is free, watermark-free, and runs entirely in your browser—nothing uploads to our servers. If anything needs extra permissions, we call it out right away.
Audio Compressor
Control dynamics with attack, release, ratio, and makeup gain tuned for speech or music.
Embed Cover Art
Add or replace album artwork inside MP3 and other metadata-friendly formats.
Crossfade Mixer
Blend two songs with adjustable overlap for smooth DJ-style transitions.
10-Band Equalizer
Shape frequency response with a precise FFmpeg-based parametric EQ.
Fade In / Fade Out
Apply professional fade ramps to the start or end of any track.
FLAC to MP3 Converter
Transcode lossless FLAC recordings into lightweight MP3 files on your device.
M4A to MP3 Converter
Convert iPhone voice memos or Apple Music downloads into portable MP3 audio.
Audio Metadata Editor
Inspect and update ID3 tags, titles, artists, and albums without re-exporting.
MP3 to FLAC Converter
Rewrap MP3 audio into FLAC containers for archival or editing pipelines.
MP3 to OGG Converter
Turn MP3 tracks into OGG Vorbis for game engines, web apps, and open codecs.
MP3 to WAV Converter
Expand MP3 audio into uncompressed WAV for DAWs and precise editing.
Noise Gate
Remove quiet background noise by clamping signal below a threshold.
OGG to MP3 Converter
Convert OGG files into MP3 for broader device compatibility.
Pitch Shifter
Raise or lower pitch without altering tempo for voiceovers and music ideas.
Ringtone Maker
Trim, fade, and export ringtone-length clips for iOS and Android.
Time-Stretch Audio
Slow down or speed up tracks while maintaining pitch fidelity.
Trim & Join Audio
Cut unwanted sections and merge clips into a single timeline.
Vocal Remover
Isolate vocals or instrumentals using phase cancellation and EQ tricks.
WAV to MP3 Converter
Encode WAV stems into MP3 using browser-based FFmpeg pipelines.