Speed up any song into a nightcore edit — pitch rises with the tempo, exactly like the classic sound. Runs on the TAIL engine, right here in your browser. Nothing leaves your device.
Drop in a track and hit the Nightcore preset: the song plays at 1.25x with the pitch rising alongside — the bright, energetic sound of the classic edits. Nudge the speed slider anywhere from a subtle 1.15x to a frantic 1.5x, preview instantly, and export. Everything runs locally in your browser on the same audio engine as the TAIL sampler: no upload, no watermark, no account.
Real nightcore isn't a time-stretch — it's a speed-up where pitch and tempo rise together, the way a record sounds played too fast. That linked shift is what gives vocals the signature high, airy quality. This tool resamples the audio exactly that way. At 1.25x the pitch comes up by roughly 4 semitones; at 1.4x it's closer to 6.
The same engine covers the whole family: a gentle 1.15x–1.2x makes the "sped up" versions popular on TikTok, and the Daycore preset flips the formula — slowed and pitched down for the mellow, melancholic opposite. A touch of the reverb slider adds space to any of them.
The edit is only half the fun. Open TAIL's browser sampler, load your nightcore 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 Slowed + Reverb Maker.
Drop the audio file on this page, click the Nightcore preset, and press Preview. When it sounds right, click Export — the finished edit downloads immediately. Everything runs in your browser; nothing is uploaded.
The classic range is 1.2x to 1.35x — the preset uses 1.25x, which raises the pitch by about 4 semitones. Below 1.2x you get the subtler "sped up" sound; above 1.4x it starts to feel chipmunk-y, which some edits lean into deliberately.
Yes, it's free, and no — there is no watermark, no sign-up, and no export limit. The processing runs on your own device, so there are no server costs behind it.
That's a different effect — time-stretching. Nightcore specifically wants the pitch to rise with the speed, which is what this page produces.
Daycore (also called anti-nightcore) is the reverse: the song is slowed down so the pitch drops, giving a deeper, melancholic sound. Use the Daycore preset here, or the Slowed + Reverb page for the full slowed-with-reverb aesthetic.
A nightcore edit is a derivative of the original recording, so posting someone else's song generally requires the rights holder's permission. TikTok and YouTube handle much of this via licensing deals and Content ID, which may claim or monetize the upload. Your own music and royalty-free tracks are always fine.