Free audio tools,
right in your browser.
No installs, no accounts, no uploads to a server — everything runs locally on your machine.
A full-featured browser mixer for multi-track audio. Fader, pan, 4-band EQ, compressor, phase flip, and clip detection per channel — plus a master bus with EQ, compressor, limiter, LUFS metering, and true peak.
Per-channel EQ & comp
Automatically detect and remove silence from audio files. Set your own threshold and padding, preview the result, then export a clean file — no dead air, no wasted seconds.
Auto silence detection
Normalize audio levels by peak or target loudness, or use Smart Match to automatically comply with streaming service requirements for YouTube, Spotify, Apple Music, Tidal, and more. Batch process multiple files at once.
Loudness & streaming
Upmix stereo audio to 5.1 surround sound, or fold down 5.1 to stereo or mono. Control individual channel levels, crossover frequency, surround delay, and reverb — then export a broadcast-ready WAV.
5.1 upmix & downmix
Automatically duck music or beds under dialogue and voiceover. Set a trigger track and threshold, tune attack and release, and export a mix with the ducking baked in.
Sidechain music ducking
Automatically transcribes podcasts and interviews into a fully editable transcript. Crumb Catcher removes or flags filler words like "um" and "uh." Manually edit words as needed.
Transcription & filler tags
A piano-roll step sequencer right in your browser. Click in melodies with sine, 8-bit lead, or 8-bit bass tones, add an 8-bit drum lane, loop 4 or 8 bars at any BPM, then export as WAV, MP3, or MIDI.
8-bit piano-roll sequencer
Select a target track and automatically time-align all your drum mics to it. Non-destructive by default, with an optional trim on export.
Multi-mic drum alignment
Built for audio people
Audio Sweet tools are designed to be fast, focused, and private — your audio never leaves your device.