FreeVocalRemover started as a single-purpose AI vocal separation tool. It's since grown into a small toolbox of free audio editors that all share the same no-signup, no-watermark philosophy. If you've only ever used the vocal remover, here's what else is quietly available — all free, all in your browser.
1. Pitch Shifter
The Pitch Shifter raises or lowers a song's key by up to 4 semitones without changing its tempo. It uses formant-preserving processing, so voices keep their natural character instead of sounding like a chipmunk or a demon — useful for moving a song into a more comfortable vocal range, matching keys for a DJ set, or transposing a reference track to practice in a different key.
2. Speed Changer
The Speed Changer speeds up or slows down a track from −50% to +100%, with the pitch held constant — the opposite of the classic "tape speed" effect where slowing something down also drops its pitch. You can dial in a percentage directly, or tell it the exact length you want the output to be and it works out the matching speed automatically.
3. Volume Adjuster
The Volume Adjuster turns a track up or down by a percentage, from −90% up to +100% (double volume). It's a straightforward but surprisingly common need — evening out a track that's quieter than the rest of your playlist, or turning down a music bed so it doesn't fight with dialogue in a video edit.
Try the Core Editing Tools
Change the key, speed, or volume of any track — free, no signup.
4. Audio Trimmer
The Audio Trimmer cuts a file down to just the section you need — pick a start and end point in seconds and everything outside that range is discarded. It reads the file's length automatically so you know what range you're working with before you commit. Handy for pulling a highlight clip out of a longer recording, or grabbing just the hook of a track for a sample.
5. Audio Merger
The Audio Merger combines two audio files into one, either played back-to-back with an optional gap, or overlaid so both play at once starting from a time you choose. Podcasters use it to stitch an intro onto an episode; producers use the overlay mode to lay a music bed under narration.
6. Audio Converter
The Audio Converter re-encodes a file into a different format — MP3, WAV, FLAC, M4A, OGG, Opus, or AIFF. Worth knowing: conversion only changes the container/codec, it can't add back quality that was already lost. Converting an MP3 to WAV gives you a bigger file, not better quality — always start from the best source file you have if quality matters.
Trim, Combine, or Convert a File
All three tools are free, with no signup and no file limits.
All Audio and Video Files Welcome
Every tool above also accepts video files (MP4, MOV, MKV, AVI, WebM, and more) as input — we automatically extract the audio track before processing, so there's no need to convert a video to audio yourself first.