Change the speed of an audio file online for free. Speed it up or slow it down and download the result, no software to install
Drop your file here or click to browse
Accepted: .mp3,.wav
Sometimes a recording just moves at the wrong pace for what you need. A lecture drags on longer than you have time for, or a voice memo is too fast to follow clearly. The Audio Speed Changer on File Tools Online lets you speed an audio file up or slow it down, without re-recording anything. Upload your file, choose how much faster or slower you want it, and download the result. There is nothing to install and nothing to learn beyond picking a speed, you upload a file at one pace and get back the same file at another.
Open the Audio Speed Changer and choose the file you want to adjust. Drag and drop it, or select it from your device.
Pick how much faster or slower you want the file to play.
Get a new file at the speed you chose, ready to use or share.
Processing usually only takes a moment. Your original upload is not changed, you simply receive a new file at the speed you selected.
Adjust a file's pace in either direction, from a single tool.
Skip installing an audio editor, upload your file and download the adjusted result directly.
The speed changer runs in your browser, no desktop software or plugin required.
Change an audio file's speed from a laptop, desktop, or phone, using nothing more than a web browser.
Your file is processed over HTTPS and automatically deleted from our servers within 30 minutes.
There is no cost to change an audio file's speed or download the result.
Changing an audio file's speed means playing it back faster or slower than it was originally recorded, so the same content takes less time or more time to play through. Speeding a file up shortens it, slowing a file down stretches it out. This is different from trimming, which removes parts of a file entirely, and different from fading, which only adjusts volume, changing speed touches how quickly the whole file plays rather than what content is included in it.
The full length of the original recording is preserved, just compressed into less time or stretched across more, depending on which direction you choose.
Adjusting how fast a file plays comes up any time the original pace does not match what you actually need, whether that is for time, clarity, or a specific effect.
Speeding audio up or slowing it down can also shift how high or low it sounds, since the two are naturally linked in basic playback speed changes: play something faster and it tends to sound higher, play it slower and it tends to sound lower. Some speed tools apply extra processing to keep the pitch steady while only the speed changes, others do not. The exact behavior of this tool's pitch handling is set inside its own processing and is not something we can confirm without testing the live tool directly, so if keeping the original pitch intact matters for what you are doing, check the result after processing before relying on it.
If your main goal is specifically to change pitch on its own without altering speed, that is a different kind of adjustment than what this tool is built around.
These sound similar but solve different problems. Changing speed keeps all of a file's content but plays it back faster or slower, so a three minute recording might become shorter or longer depending on the speed you choose, while nothing is removed. Trimming, on the other hand, cuts a file down by removing everything outside a section you select, so the file gets shorter because content is discarded, not because the playback pace changed.
If you want the full recording but need it to take less time or more time to play, use this tool. If you only need a specific portion of a file and want to discard the rest, the Audio Trimmer is the better fit. Some projects use both, trimming down to the right section first, then adjusting the speed of what remains.
The tool accepts common audio formats such as MP3 and WAV, so in most cases you can upload a file directly without converting it first. If your file is in a less common or older format, run it through the Audio Converter first, then adjust the speed of the result.
Adjusting an audio file's speed traditionally meant opening a dedicated audio editor and learning its controls just to make a simple pace change. The Audio Speed Changer on File Tools Online skips that step entirely. There is nothing to download and nothing to install, whether you are on Windows, Mac, Android, or iPhone, you upload your file directly in your browser and download the adjusted result. For a quick, occasional speed change, that is generally faster than opening a full editor.
Because the Audio Speed Changer runs in your browser rather than as installed software, it works the same way on Windows, Mac, Chromebook, Android, and iPhone. There is nothing tied to one operating system, so you can adjust a file's speed on whichever device you happen to have it on.
It lets you speed up or slow down an audio file's playback, giving you a new version that plays faster or slower than the original.
Speed and pitch are naturally linked in basic playback changes. Whether this tool keeps pitch steady while only changing speed is not something we can confirm without testing the live tool, check your result before relying on it.
Yes. The Audio Speed Changer handles both directions, you choose whether the result plays faster or slower than the original.
Changing speed keeps all the content but plays it back faster or slower. The Audio Trimmer removes content entirely, keeping only a section you select and discarding the rest.
The tool accepts common audio formats such as MP3 and WAV. If your file is in a less common format, convert it first with the Audio Converter, then adjust the speed of the result.
Yes. Upload your file to the Audio Speed Changer and download the adjusted result, there is no cost to use it.
No. Upload your audio file and adjust its speed directly in your browser, no editing software required.
Yes. The tool runs in your browser, so it works the same way on Windows, Mac, Android, and iPhone without installing anything.
It can, since a faster version plays through in less time and a slower version plays through in more time, though the exact size also depends on the format and settings involved.
No. You receive a new file at the speed you chose, your original upload is not altered.
You can upload and adjust files one at a time, repeating the process for each additional file you need changed.
Your file is processed over HTTPS and automatically deleted from our servers within 30 minutes.
File Tools Online is a collection of free, browser based tools for working with audio, video, PDF, and image files, built for people who need a quick, reliable result without installing software. The Audio Speed Changer is one part of a larger set of audio tools, so once your file plays at the pace you need, you can trim it, normalize its volume, or convert it using the other tools in the same toolkit.
Getting a recording to move at the right pace, whether that means faster for saving time or slower for following along more closely, is a common need that used to require a dedicated editor and now takes just a browser.