Speed up music on a Mac,
no editor required

The Mac already has everything this needs

Mac users asking how to speed up a song are usually pointed at one of two extremes: a full digital audio workstation, or an upload site. The middle path is simpler than both — Safari and Chrome on macOS carry a complete audio engine, and this page runs on it directly.

Drop a song from Finder onto the tool. The browser decodes it, resamples it at the speed you set, and exports a new MP3 or WAV to your Downloads folder. Nothing installs, nothing uploads: the processing happens on your Mac's own processor, which handles a single song without noticing the effort. Because no server is in the path, the tool keeps working offline once the page has loaded — and your file is never anywhere but your machine.

If you already own a proper editor, this page is still often the faster route for the one-slider job. Opening a project, importing, finding the tempo effect, and rendering is a longer walk than dropping a file on a tab.

The privacy consequence is worth a sentence on its own: because the processing is local, your file is never copied to a server, no account exists to attach it to, and the tool keeps working offline once loaded. For unreleased material — a demo, a client mix, a rough bounce from your own session — that is the difference between using a tool and trusting a service.

The scope, stated plainly

Speed from 50% to 200%, pitch linked. Six reverb rooms — Air, Room, Chamber, Hall, Plate, Cathedral — with a mix control. Loop, volume, waveform, free MP3/WAV export, files up to 50 MB. No equalizer, no independent pitch, no video export on the web: those are editor and app territory, and this page says so instead of implying otherwise.

12 semitones per doubling — the link that makes the sound

This tool links pitch to speed exactly the way physical playback does: doubling the speed raises the pitch one octave, 12 semitones. At 125% that is a lift of about 3.9 semitones — and that lift, not the tempo alone, is what makes sped-up versions sound bright and eager.

It also means small slider moves matter. Between 115% and 135% — the conventional range for sped-up edits — every few percent shifts the voice noticeably. Move the slider while the song plays and stop at the fastest point where the singer still sounds like themselves. If you want tempo change with no pitch change at all, that is a different technique this tool deliberately does not do.

A craft note on loudness

Reverb adds level; speed does not. If you raise a room's mix, pull the volume slider down slightly before export so the loudest section stays clean. Check the chorus on good headphones — the Mac's built-in speakers are kinder to rough exports than earbuds will be.

Start to finish on a Mac

One song, about a minute, no project files.

1. Open this page in Safari, Chrome, Firefox, or Arc.
2. Drag the song out of Finder and drop it on the tool, or use the picker — up to 50 MB. Music you have as actual files works; streaming library entries are not files.
3. Press play and move the speed slider. The sped-up preset starts inside the 115–135% convention; fine-tune by a few percent.
4. Optional: choose a reverb room at a low mix.
5. Export MP3 or WAV — it lands in Downloads. Free exports add a short spoken note after the song ends, never over it; any trimmer, including QuickTime's trim, crops it off in seconds.

What Mac users actually use this for

Sped-up edits are the headline, but the same slider covers three quieter jobs that Mac users tend to arrive with.

The first is practice. Musicians slow a passage to 60–80% to learn it — a solo, a fast strumming pattern, a drum fill. Because pitch is linked here, the part drops as it slows, which is fine for learning rhythm and phrasing but worth knowing before you play along expecting the original key. The loop control is built for exactly this: mark the difficult bars and let them repeat while your hands catch up.

The second is spoken audio. Lectures, interviews, and voice memos take speed well — 125% to 150% stays fully intelligible for most material — and exporting the faster version means it plays at that speed everywhere, including players with no speed control of their own. The third is feeding video projects: iMovie, Final Cut, and screen-recording workflows all take MP3 and WAV directly. For those, export WAV — the video render will encode the audio anyway, and starting clean keeps the final result one generation of compression away from your source instead of two.

Version hygiene

The tool never modifies the file you drop in; exports are always new files. Extend the same discipline to your folders: originals in one place, edits named with their speed — "song 125.mp3" — somewhere else. A sped-up export slowed back to 100% is not the original again; two speed changes and two encodes always leave their mark. The source file is the master, and every edit is a copy taken from it.

On Apple silicon, the app itself runs on your Mac

You love sped-up music? There is a player for that.

Y2K Player is a music player for iPhone and iPad — and because it is an iOS app, it also installs and runs natively on Apple-silicon Macs (M1 and later) straight from the App Store. That gives the Mac a real resident version: a library where each song keeps its own speed and effect settings, playlists that always play your versions, video export at 1080p over visualizers, full offline use, no account. Free to use. Pro is one payment — forever. This page stays the right tool for a quick exported file; the app is the right tool for listening this way every day.