Turn any song into a slowed + reverb edit — pick a preset, fine-tune speed and reverb, preview, export. Runs on the TAIL engine, right here in your browser. Nothing leaves your device.
Drop in a track, hit the Slowed + Reverb preset, and you get the classic sound: the song slowed to about 0.8x — pitch dropping with it, like a tape played slow — wrapped in a soft hall reverb that rings out after every phrase. Adjust the speed and reverb sliders to taste, preview instantly, and export. Everything runs locally in your browser on the same audio engine as the TAIL sampler: your audio is never uploaded, there's no watermark, and no account.
The effect comes from two things working together. Slowing the tape drops both tempo and pitch, which makes vocals feel deeper and heavier. The reverb then blurs the spaces between notes, adding the dreamy, distant atmosphere the style is known for. This tool links speed and pitch on purpose — a genuine resample, exactly how the classic edits are made.
0.8x with 45% reverb is the classic sound, but the sliders go further: 0.65x–0.75x with heavy reverb gets you into deep, ambient territory, while 0.9x with a touch of reverb just adds mood without changing the song's character. The reverb tail is rendered fully — the export includes the natural ring-out at the end instead of cutting off.
The edit is only half the fun. Open TAIL's browser sampler, load your slowed export onto a pad, slice it, and build a beat around it — same engine, same tab, no install.
Ready to go further? Open the TAIL sampler and build a beat from your edit — or try the Nightcore Maker.
Drop the audio file on this page, click the Slowed + Reverb preset, and press Preview. When it sounds right, click Export — the finished edit downloads immediately. The whole process runs in your browser; nothing is uploaded.
Yes, it's free, and no — there is no watermark, no sign-up, and no export limit. Because the processing runs on your own device, there's no server cost that would need to be recouped.
Most edits sit between 0.75x and 0.85x. The preset uses 0.8x, which drops the pitch by roughly 4 semitones — the deep, heavy sound the style is known for. Slower than 0.7x gets very ambient; use the slider to find the spot for your track.
Yes — use the Nightcore preset (1.25x, pitch rising with speed) or push the speed slider anywhere up to 1.5x. There's also a dedicated Nightcore Maker page with the preset already selected.
No. The export extends past the end of the song so the reverb decays naturally to silence instead of stopping abruptly.
The edit is a derivative of the original recording, so posting someone else's song — even slowed — generally requires the rights holder's permission. Platforms like TikTok and YouTube handle much of this through their licensing deals and Content ID, which may claim or monetize the upload. For your own music or royalty-free tracks there's no issue.