Best slowed and reverb maker:
compare, then listen

Four slowed and reverb makers, compared on facts

Every tool in this table calls itself a good place to make slowed and reverb edits. Rather than argue, here are the rows you can verify in one visit. A dash means we could not confirm the answer and refuse to guess. Rows where a competitor beats us are printed exactly like the others.

Where the others genuinely win

slowedandreverb.io takes files up to 500 MB on its free tier — ten times our 50 MB cap. If you slow down hour-long mixes or huge WAV files, that difference alone can decide it. Its premium tier also sells independent pitch, EQ, stereo width, and pre-delay, so if you want those knobs in a browser and are willing to pay, they exist there. soniclab.io can pull audio from a YouTube URL, which we do not do. These are real advantages and pretending otherwise would make the rest of this page worthless.

Where this tool wins

Reverb depth on the free tier. Slowed and reverb lives or dies on the reverb, and here the whole reverb section is free: six rooms from a tight Air to a huge Cathedral, with a mix control to blend how far back the song sits. The tempo slider plays live while you drag, so you hear 85% against 80% instead of rendering and waiting. The export is a whole-song MP3 or WAV, free, with one honest catch — a short spoken note after the song ends, which you can crop off. And the processing is local. The song never leaves your device.

85% tempo with Room at 30% mix is the honest starting point

Whatever tool you end up choosing, this pair of numbers is the fastest way to hear whether it can do the style at all.

At 85%, pitch drops about 2.8 semitones with the link on — deep enough to feel heavy, not so deep that the vocal turns to sludge. Room is the smallest natural-sounding space in our set, and 30% mix keeps the dry song in front with the tail behind it. This page opens with both already set, so your first play is already a slowed and reverb edit. From there the moves are simple: darker mood, drop toward 80%; more distance, raise the mix or step up to Chamber or Hall; the drums losing their edges means the mix is too high, not the tempo too low.

Room choice is where taste enters. Air and Room suit vocal-forward pop, where the words must stay near the front. Chamber and Hall are the classic slowed and reverb spaces for hip hop and R&B edits. Plate gives a metallic sheen some electronic tracks like, and Cathedral is the extreme — a huge wash for ambient rework, usually at a lower mix than you expect. Auditioning all six on one chorus takes under a minute here, because switching rooms does not interrupt playback.

A craft note on loudness

Reverb adds energy between the notes, which is where slowed edits clip. Before exporting, play the loudest section once at your final settings. If it feels crowded, reduce the reverb mix by ten points before touching the volume — the wash is almost always the cause, and volume cuts make the edit quieter without making it cleaner.

Make a slowed and reverb edit here, start to finish

The player at the top of the page is the maker itself, preset to 85% with Room at 30% mix.

1. Drop a song onto the player, or press the demo track to try the settings with no file. Files up to 50 MB work.
2. Press play. You are already hearing the slowed and reverb version — 85% tempo, pitch down 2.8 semitones, Room behind it.
3. Drag the tempo slider while it plays. Playback follows live; settle where the song feels heavy but the words stay clear.
4. Try the rooms in order — Air, Room, Chamber, Hall, Plate, Cathedral — and adjust the mix. Bigger room, lower mix is the usual trade.
5. Loop the chorus and listen once for the vocal, once for the low end.
6. Export MP3 or WAV, free, whole song. Crop the short spoken note off the end before posting.

If your file is over 50 MB

Two honest options: slowedandreverb.io takes up to 500 MB free, or convert your WAV to a smaller format first and bring it here. We would rather tell you that than pretend the cap does not exist.

You love slowed and reverb? There is a player for that.

A maker changes one song at a time. Y2K Player, the music player for iPhone and iPad behind this site, makes slowed and reverb a way of listening to your whole library.

The app saves settings per song — your slowed songs stay slowed at exactly your numbers, everything else plays normally. It adds what the browser honestly cannot: independent pitch, playlists, a real library of files on your device, offline playback, and 1080p video export over visualizers for edits you want to post. No account. Free to use. Pro is one payment — forever.