How to speed up a song in 3 steps
- 01
Open your track
Click Open file, drag a track into the drop zone, or select Try a demo to test speeds on a sample loop before working with your own song.
- 02
Set a speed or use the BPM helper
In Studio settings, drag speed from 100% to 200%, pick a preset (110/120/130/150%), or use the BPM helper: it detects the source BPM, and typing a target BPM sets the matching speed automatically. Keep pitch is the default; switch to Linked if you want pitch to rise instead.
- 03
Preview and export
Playback previews the change instantly while pitch-preserving, so you can judge the speed before committing to a render. Click Render preview to finalize, compare with Original/Processed, then choose a format and click Download audio.
What you can do with this sped up music maker
- Keep pitch is the default, so a track plays faster without sounding higher — the creator-edit sound used in fast-cut videos, distinct from nightcore's linked pitch rise.
- Switch to Linked mode if you want pitch to rise with speed instead, for a brighter, more energetic version of the same speed-up.
- Speed range from 100% to 200%, with instant preview while playing thanks to browser pitch-preserving playback, so you can audition changes before rendering.
- A BPM helper detects your source track's tempo and sets the exact speed needed to reach a target BPM you type in.
- The tool shows your new track duration as soon as you set a speed, so you know exactly how much shorter the edit will be.
- Four presets — 110%, 120%, 130%, and 150% — cover the most common sped-up speeds as adjustable starting points.
- Export to WAV, MP3, FLAC, OGG, Opus, M4A, or AIFF, at source, 44.1 kHz, or 48 kHz, in mono or stereo.
- Save a speed and pitch mode combination as a preset, or hand the result to another tool with Continue in another tool, with no re-upload needed.
What is a sped up song maker?
A sped up song maker, also called a speed up song tool, plays a track back faster, usually with the pitch kept steady so the track sounds like the same recording, just quicker — the effect behind the fast-cut edits common on short-form video. This tool defaults to Keep pitch, using time-stretching to raise tempo without raising key, and runs entirely in your browser.
If you want the pitch to rise along with the speed instead, switching to Linked mode gives you that brighter, more energetic version, though at that point you're closer to the effect a nightcore maker is built around. This tool's default and its BPM helper are aimed squarely at creator edits — hitting a target duration or tempo — rather than the nightcore aesthetic specifically.
Keep pitch vs. Linked: choosing your sped up sound
Keep pitch time-stretches the track: playback speed increases while the pitch-detection engine holds the original key in place. It's the more common choice for sped up edits, since it keeps vocals and instruments sounding like the same recording, just faster — useful when you want to fit more into a fixed video length without the track sounding unrecognizable.
Linked mode ties pitch to speed the way a record does when it plays too fast, so pitch rises as the track speeds up. It's a legitimate creative choice, especially at higher speeds where you want extra brightness and energy, but it changes the track's character more than Keep pitch does, and vocals in particular sound noticeably higher.
Using the BPM helper to hit an exact tempo
If you need a track at a specific tempo rather than a specific percentage, the BPM helper detects the source track's BPM and lets you type a target BPM instead of guessing a speed percentage. For example, a source detected at 100 BPM with a target of 120 BPM sets speed to 120% automatically — the target divided by the source, expressed as a percentage.
That's useful for matching a sped up edit to a specific tempo you need, such as syncing to another track or a fixed video tempo, without doing the percentage math yourself. The speed slider still updates so you can nudge it further from there if the exact BPM match feels a touch too fast or slow once you hear it.
How speed affects your track's length
Speeding a track up shortens it by the same ratio: at 120% speed, a track finishes in five-sixths of its original time. A three-minute (3:00) song at 120% speed runs about 2:30 — divide the original duration by the speed ratio to estimate the new length before you render, whatever speed you end up choosing.
The tool shows the new duration live as you adjust speed, which matters if you're timing an edit to fit a specific video length or a fixed slot. Nudging speed by just a few percentage points can be the difference between a track that fits neatly and one that runs a couple of seconds long.
Sped up vs. nightcore vs. tempo changer: which tool do you need?
This tool owns the creator-edit intent: Keep pitch by default, a BPM helper, and duration-focused presets built for fast-cut videos and social edits. Nightcore maker is built around the specific speed-and-pitch aesthetic, defaulting to linked pitch rather than keeping it steady, with its own dedicated presets like Classic 125% and a narrower 100-150% speed range.
If you're practicing an instrument or need an exact BPM for rehearsal rather than a creator edit, tempo changer is the better fit — it adds half/double-time buttons and a loop-a-region practice mode this tool doesn't have, alongside the same keep-pitch or linked choice and a much wider speed range built for practice rather than posting.
What to expect when you speed up a song
Keep pitch relies on time-stretching, which works well up to moderate speed increases but can introduce a subtle smearing or "stretched" quality on complex mixes as you push toward 200%. If a heavily sped-up render sounds artifacted, trying a slightly lower speed, or switching to Linked mode, which doesn't rely on the same stretching algorithm, is worth testing.
As with any speed change, a clean source track holds up better than a heavily compressed one — existing artifacts become more noticeable once time-stretched rather than less. There's no watermark or quality ceiling built into this tool; what you start with sets the limit on the final render, so a higher-quality source is always worth using if you have a choice.
Tips for a cleaner sped up edit
- Use the BPM helper when you need an exact tempo rather than a round speed percentage — it saves you from calculating the ratio by hand.
- Keep pitch is usually the safer default for creator edits; switch to Linked only when you specifically want the brighter, higher-pitched character.
- Watch the live duration display when you're timing an edit to a fixed video length — small speed adjustments change the final length more than you'd expect.
- Preview at your target speed with the instant pitch-preserving playback before rendering, so you're not waiting on a full render just to check the vibe.
- If a fast render sounds smeared, try a slightly lower speed, or switch to Linked mode, which uses a different method than Keep pitch's time-stretch.
- Save preset once you land on a speed and pitch mode you reuse often, so future edits start from the same settings.
Frequently asked questions
What is sped up audio?
Sped up audio is a track played back faster than its original speed, usually with the pitch kept steady. This tool defaults to Keep pitch, and also offers a Linked mode where pitch rises with speed if you want that character instead.
How do I speed up a song without changing the pitch?
Open a track, keep the default Keep pitch mode, and set your speed between 100% and 200%, or use the BPM helper to hit an exact target tempo. Click Render preview, then Download audio once it sounds right.
What's the difference between sped up and nightcore?
Sped up audio defaults to keeping pitch steady, aimed at creator edits and fast-cut videos. Nightcore maker defaults to linking pitch to speed, for the brighter, higher-pitched nightcore aesthetic specifically, though both tools can do either if you switch modes.
How does the BPM helper work?
It detects your source track's BPM, and when you type a target BPM, it sets the matching speed automatically — for example, a 100 BPM source with a 120 BPM target sets speed to 120%. You can still fine-tune the speed slider afterward.
How do I know how long my sped up track will be?
The tool displays the new duration live as you change speed. As a rule of thumb, divide the original duration by the speed ratio — a 3:00 track at 120% finishes around 2:30, and the same math scales to any speed and length.
Is this sped up song maker free?
Yes, free with no sign-up and no watermark on the export. Everything processes on your device, so there's no server queue to wait on and nothing to pay for, however many tracks you speed up.
Is my audio uploaded anywhere?
No. Speed and pitch processing happens locally in your browser using the audio engine built into your device; your file is never sent to a server, whether it's a finished song or a rough mix.
What audio formats work for sped up audio?
Input covers anything your browser can decode, typically MP3, WAV, FLAC, OGG/Opus, M4A/AAC, AIFF and WebM. You can export as WAV, MP3, FLAC, OGG, Opus, M4A, or AIFF, with a choice of sample rate and channels.
Is there a file size limit?
Files up to 150 MB are supported. Larger files at high speeds can take longer to process, particularly on phones or older computers with less memory available for time-stretching a long track.
Can I adjust the sped up speed precisely?
Yes. Drag the speed slider anywhere from 100% to 200%, use a preset (110/120/130/150%), or let the BPM helper set an exact speed from a target tempo you type in yourself and refine from there.
Does sped up audio change the pitch?
Not by default — Keep pitch mode holds the original key steady while speed increases. Switch to Linked mode if you want pitch to rise along with speed instead, for a brighter, more nightcore-like character.
Does this work on mobile devices?
Yes, in modern mobile browsers, though time-stretching at high speeds is more demanding than plain playback. Large files may process more slowly on a phone than on desktop, especially near the top of the speed range.
Can I preview before downloading?
Yes. Playback previews your chosen speed instantly while pitch-preserving, and Render preview finalizes the result so you can A/B it against Original/Processed before exporting or picking a final output format.