Free online tool

Speed Up a Song Online

Speed up any song in your browser from 1.05x to 1.50x. Raise the pitch for a sped up sound, preview in key with Preserve pitch, then export an MP3 in seconds.

Open the free editor: upload MP3, WAV, AAC, OGG or FLAC, adjust speed, reverb, bass, tone, width and space, then export MP3 or a ZIP of many tracks. Everything runs in your browser.

Speeding up a song is the simplest edit there is, and it is also the one people get wrong most often, because "faster" means two different things. You can play the file back faster and let the pitch rise with it, which is how sped up versions and nightcore sound. Or you can raise the tempo and hold the pitch where it was, which is what you want for a practice track, a workout playlist or a dance rehearsal. The editor above does both. The Speed slider runs from 1.00x to 1.50x on the fast side, and the Preserve pitch switch decides whether the key moves.

Everything happens in your browser. The file is decoded with the Web Audio API, processed on your machine and encoded to MP3 on your machine. No upload, no account, no queue. If you only want the trendy pop sound, the sped up song maker page starts you at the Lift preset. If you want the brighter, faster anime style, go to the nightcore maker. This page is the general purpose speed tool, and it also covers the opposite direction for people who landed here but actually want to slow a song down.

Two ways to make a song faster

Pitch follows speed (Preserve pitch off). This is how a turntable or a tape machine behaves. Play the track at 1.20x and everything is 20% faster and about 3 semitones higher. Voices get thinner and younger, drums get snappier, and the whole thing feels more excited. This is the sound of sped up edits on TikTok and of nightcore.

Preserve pitch on. The editor time-stretches the audio so the tempo rises but the key stays put. A song in G major is still in G major at 1.25x. Preserve pitch changes the live preview only; exported files keep the speed-linked pitch, so for an in-key file use Audacity's Change Tempo or a DAW. This is what musicians use to learn a part at a faster tempo, what dancers use to drill choreography, and what runners use to match a song to their cadence. The trade-off is a slight smearing on transients at extreme settings, because time-stretching has to invent audio that was not there. Up to about 1.30x it is hard to hear. Past 1.40x you may notice a faint flutter on sustained vocals.

Try both on the same track before you decide. The difference is bigger than most people expect.

Speed, semitones and BPM

The table below shows what each speed does to pitch when Preserve pitch is off, and what it does to tempo in either mode. The BPM column uses a 120 BPM source because that is close to the centre of modern pop. Multiply your own song's tempo by the speed to get its new tempo.

A full octave is 12 semitones, so even the maximum speed is just over half an octave. That is why 1.50x still sounds like a song rather than a chipmunk recording, though a male vocal at that setting will sit well into a female range.

How to speed up a song

1. Drop the file onto the editor. MP3, WAV, AAC, OGG and FLAC all work. Add several files if you want to speed up a whole playlist at once.
2. Decide on pitch. Leave Preserve pitch off for the raised-pitch sound. Turn it on if the song has to stay in key while you listen; the export keeps the speed-linked pitch either way.
3. Move the Speed slider to the right. Start at 1.15x and nudge from there. Small moves matter more than you think; the gap between 1.15x and 1.25x is the gap between "slightly brighter" and "obviously edited".
4. Press play and listen for ten seconds at the chorus. If a vocal has gone shrill, back off 0.05x or pull Tone down 2 dB.
5. Adjust the rest only if needed. Speeding up a track thins the low end because every frequency moves up. A touch of Bass, +1 to +3 dB, puts weight back. Leave Reverb at 0 unless you want a specific style.
6. Export. One MP3 per track, or a ZIP if you selected several.

Settings by purpose

For the practice and rehearsal rows, Preserve pitch is the whole point. A guitarist learning a riff at 1.10x wants to hear the same notes, just closer together.

Why pitch rises with speed

Digital audio is a long list of samples. Playing them back faster means more cycles of every waveform pass per second, and more cycles per second is a higher frequency. A 440 Hz note at 1.25x becomes 550 Hz, which is about 4 semitones up. The same thing happened to a vinyl record played at 45 rpm instead of 33.

Preserve pitch works differently. The audio is cut into tiny overlapping grains, the grains are played closer together, and the result is smoothed so you do not hear the seams. The pitch of each grain is unchanged, so the key holds. The cost is that very short sounds like hi-hats and consonants can get slightly blurred, especially above 1.35x. For most pop material it is not a problem.

Speeding up more than one song

Add every file, click Select All Tracks, set Speed once, and the setting applies to all of them. Download All gives you a single ZIP. If one track in the set needs a different speed, click only that track, change it, then select the others again. The bulk converter page explains the full workflow for albums and playlists.

If you find yourself using the same settings every time, click Create preset and save them. Presets live in your browser's local storage on that device.

What the export is

The file you get is an MP3 at 96 kbps and 32 kHz, encoded in a web worker so the page stays responsive during the render. That bitrate is tuned for fast encoding inside a browser, and it is fine for YouTube, TikTok, Shorts and Reels because those platforms re-encode whatever you upload. It is not a mastering format. There is no WAV or FLAC export. If you are speeding up a track for a release, work from a WAV source and bounce the final from a DAW.

Things this tool does not do

• It does not shift pitch independently of speed. Pitch either follows speed or is held in place. If you want the original tempo at a higher key, that is a different kind of tool.
• It does not trim or cut. Export the full track and cut it in a video editor.
• It does not go above 1.50x.