Edit audio online

Quick single-purpose editors for your tracks — trim, reverse, re-speed, re-pitch, boost, or stylize with effects like nightcore, slowed + reverb, and 8D. Each tool does one job well, entirely in your browser.

Ringtone maker

Turn any song into a 30-second ringtone with a smooth fade-out. Downloads a ready-to-use M4R for iPhone or MP3 for Android. Free, in your browser.

Add fade in and fade out

Add a fade-in and fade-out to any track in seconds, right in your browser. Adjustable lengths, no upload.

Volume booster

Boost (or lower) a track's volume by up to 15 dB with a built-in limiter that prevents clipping. Free, no upload.

Audio speed changer

Change a track's speed from 0.5× to 2× while keeping the original pitch. Free, in your browser, no upload.

Pitch shifter

Shift audio up or down by up to 12 semitones while keeping the tempo. Free browser tool, no upload.

Reverse audio

Flip a track so it plays back-to-front — for reversed intros, risers, and effects. Free, in your browser.

Remove silence from audio

Automatically strip leading, trailing, and mid-file silence from a recording. Adjustable threshold, free, no upload.

Nightcore maker

Turn any song into a nightcore version — faster and higher-pitched together, the classic sound. Free, in your browser.

Slowed and reverb maker

Slow a track down and drench it in reverb — the slowed + reverb aesthetic, rendered in your browser for free.

8D audio converter

Convert any song to 8D audio — the sound orbits slowly between your ears. Best with headphones. Free, in your browser.

Bass booster

Boost the bass of any track up to +15 dB with a limiter guarding against clipping. Free browser tool.

Add reverb to audio

Put a dry recording in a space — small room, hall, or cathedral reverb presets, rendered in your browser.

Vocal remover (karaoke effect)

Reduce the lead vocal in a stereo track using center-channel cancellation. Works best on center-panned vocals. Free, no upload.

Stereo to mono converter

Merge a stereo file into a single mono channel — for phone systems, mono playback, or smaller files. Free, in-browser.

Mono to stereo converter

Turn a mono file into stereo — duplicate the channel, or add width with a subtle Haas delay. Free, no upload.

Audio normalizer

Normalize one file to a loudness target: -14 LUFS for streaming, -16 for podcasts, -23 for broadcast. Free, in-browser.

Add album art to MP3

Embed cover art and title/artist/album tags into an MP3, M4A, or FLAC — no re-encoding, no app to install. Free, in your browser, files never uploaded.