How to make a slowed and reverb song
Quick answer: To make a slowed and reverb song, add your song, pick Slowed or Slowed + deep, press Play and fine-tune and download.
- Add your song. Drop an MP3, WAV, M4A, AAC, OGG or FLAC file, up to 15 minutes long.
- Pick Slowed or Slowed + deep. Slowed plays at 0.80× with a medium hall; Slowed + deep goes to 0.70× with a bigger, darker room.
- Press Play and fine-tune. Move the Speed, Reverb and Room size sliders while it plays: you hear each change at once.
- Download. Choose MP3 or WAV and press Download. The track is rendered on your device in a few seconds.
What makes the slowed + reverb sound?
Two things. Slowing the song down also lowers its pitch, which makes voices deeper and everything feel heavier and calmer. A long reverb then smears each note into a wash of sound, like hearing the song in a large empty hall. Most slowed edits sit between 0.75× and 0.85× speed with 25–45% reverb.
Good starting settings
For a classic edit, use 0.80× speed, 35% reverb and a 3.5-second room. For a sadder, more distant feel, try 0.72×, 50% reverb, a 5-second room and a little Muffled. Add 2–4 dB of bass if the slowed version sounds thin on phone speakers.
Frequently asked questions
What speed should I use for slowed songs?
0.80× is the most common. 0.85× keeps the song closer to the original; 0.70–0.75× gives the deep, half-asleep sound.
Is it free?
Listening is free: you can add a song, try every setting and listen in the page at no cost. Downloading the finished file needs a monthly plan (unlimited downloads) or a one-time 24-hour pass.
Is my song uploaded?
No. The audio is decoded and processed by your own browser with the Web Audio API. The file never leaves your device.
Can I post the result on TikTok, Instagram or YouTube?
Only if you have the rights. Editing a song doesn't make it yours: use your own music, royalty-free tracks or songs you have permission to remix, and follow each platform's music rules. For personal listening, it's yours to enjoy.