Slowed + reverb and nightcore are the classics. Super, 8D, bass, and vaporwave are included too.
Adjust speed & reverb
Preset values load when you pick an effect. Drag the sliders, then download. 100% speed is the original tempo.
SlowerFaster
DryWet
Queued…0%
Convert this file
Pick an effect, tweak speed or reverb if you want, then start. The file downloads when it is ready.
How to make slowed + reverb or nightcore
1
Upload your song
Choose an MP3 or another audio file from your phone or computer. Video files with a soundtrack work too.
2
Pick slowed, nightcore, or another effect
Use the presets or drag speed and reverb. Nightcore speeds up and raises pitch; slowed + reverb does the opposite.
3
Download the MP3
Conversion usually takes a few seconds. The file downloads automatically. Uploads are deleted after processing.
What is this converter?
This tool applies classic slowed + reverb and nightcore processing to a file you already have. It is different from the YouTube Slowed + Reverb page, which starts from a YouTube link.
Effects you can apply
Slowed + reverb
Lower speed and pitch with hall-style echo — the TikTok slowed sound.
Nightcore
Faster tempo and higher pitch. Super nightcore goes even further.
8D and bass boost
Moving stereo pan for 8D, or extra low-end for a boosted mix.
Vaporwave
Slowed, filtered, and wet — a mellow aesthetic mix.
Why convert here?
Works from a file on your device, not only YouTube links
Presets plus custom speed and reverb sliders
Downloads 320 kbps MP3, free, no account
Pairs with the MP3 converter and cutter
Quality and limits
Output is stereo MP3 at 320 kbps. Uploads up to 80 MB and about 60 minutes. Files are processed then deleted.
Slowed + reverb & nightcore FAQ
Is this free?
Yes. Convert and download without an account.
Do I need a YouTube link?
No. This page uploads a file. For YouTube links, use Slowed + Reverb in the YouTube menu.
What is nightcore?
Nightcore speeds the track up and raises pitch. Super nightcore is faster still.
What is slowed + reverb?
The song plays slower (and lower) with echo/reverb. Super slowed is even slower and wetter.
Can I change speed myself?
Yes. After picking a preset, use the speed and reverb sliders.
Which files can I upload?
MP3, WAV, FLAC, M4A, OGG, OPUS, and most video files that contain audio, up to 80 MB.
Is my file stored?
No. It is converted then deleted.
Why did conversion fail?
The file may be corrupt, have no audio, or be too long. Try another file or trim it first.