ADD YOUR OWN TOUCH TO EVERY SOUND
Slow it down. Speed it up. Make it yours.
Adjust playback speed, add reverb, and set seamless loops. Keep playing as you go about your day, fine-tune your settings, and export high-quality files.
Your files are processed offline and stay on your device.
Import your file
Supports audio (MP3, WAV, OGG) and video formats (MP4, MKV), plus many more.
Drop your file here
or choose a file from your device
Your file stays on your device during local processing. External links may require a network request.
No account required
Make every sound your own
Change the speed
Slow down (daycore) or speed up (nightcore) your track. Choose whether changing speed affects pitch.
Add reverb
Give your sound room to breathe—from light room reflections to lingering decay.
Listen on repeat
Let it loop, or select a section to replay your favorite moment.
Enjoy background playback
Listen in the background as you go about your day
Dynamic playback display
Enjoy a music visualizer for audio files, or watch your videos directly on screen.
Export your file
Save your track with all your settings applied, including looped sections.
How it works
- 1
Load an audio or video file.
- 2
Fine-tune the settings to your liking.
- 3
Listen in the background or export the result.
No account required.
Made for your music, built around your privacy
Where processing is performed locally, your file remains on your device rather than being uploaded to our servers. Some features, including loading external URLs, may require network access. See our Privacy Policy for details.
Read the Privacy PolicyQuestions?
Can I use SlowedReverb.io with a music link?
You can use supported, directly accessible file URLs. Links to streaming platforms are not necessarily direct audio or video files, and some platforms restrict downloading or modifying their content.
Can I download the processed file?
Yes, when the input format and browser capabilities are supported. Export options and quality may vary depending on the initial file, your device, and selected format.
Does SlowedReverb.io work on mobile?
The interface is designed for desktop and mobile browsers. Background playback is supported but not guaranteed across every mobile browser, particularly when the tab is suspended or the device aggressively conserves resources.
What about my privacy?
Local files are processed on your device whenever the feature supports local processing. External URLs may be fetched over the network, and optional services such as analytics may transmit separate usage data.
Which formats are supported?
We support audio formats such as MP3, OGG, and WAV, as well as video formats like MP4 and MKV. Availability may vary depending on the device and browser.
Ready to reshape your sound?
Choose a file and start listening.