Free Online Audio Tools
A growing set of free audio utilities for anyone making music — especially with AI. Every tool runs entirely in your browser, so your tracks never leave your device. No uploads, no signup, no watermarks.
Nothing leaves your device
Every tool here (except the AI prompt generator) processes audio locally in your browser using the Web Audio API — your files are never uploaded to a server. That matters when you are working with unreleased tracks.
Everyday essentials
Audio Trimmer
Cut and trim audio online, free — right in your browser.
Open toolBPM Detector
Find the tempo of any song online — free and instant.
Open toolSong Key Finder
Detect the musical key and Camelot code of any song, free.
Open toolAI Music Prompt Generator
Turn a short idea into optimized AI music prompts and lyrics.
Open toolAudio Metadata Viewer
View MP3 tags, cover art, and audio details — privately.
Open tool
Convert, compress & combine
Audio Converter
Convert audio to WAV online, free — nothing uploaded.
Open toolAudio Compressor
Reduce audio file size online, free and private.
Open toolAudio Joiner
Merge and combine audio files online, free and private.
Open toolAudio Reverser
Reverse audio online, free — nothing uploaded.
Open toolVolume Changer
Change audio volume online, free — nothing uploaded.
Open tool
Free Online Audio Tools
Every tool here (except the AI prompt generator) processes audio locally in your browser using the Web Audio API — your files are never uploaded to a server. That matters when you are working with unreleased tracks.