Learn dance from YouTube in slow motion
Paste any dance practice video or tutorial into Stairway2Fast and it becomes a rehearsal room: drag two handles around one 8-count, slow it to 0.5× — the music keeps its pitch, so the counts still feel like the song — and it repeats while you drill it. Free, in your browser, no signup.
▶ Try it live — no signup opens a dance practice video in the player
How it works
- Paste a YouTube link. Dance practice videos, mirrored tutorials, class recaps, fancams — if it plays on YouTube, it loops here, through YouTube's own player.
- Frame one section. Two handles on the timeline mark the exact moment — the dance break, the transition you keep fudging, the footwork that goes by too fast to see. The loop holds while you run it.
- Slow it down. 0.25×–2× in steps. At 0.5× you can actually see the pathway of an arm or the weight shift under a turn. Climb back up one notch at a time as it gets clean.
The part other loopers don't do: it remembers
Any speed-changer can slow a video down — and then forget you were ever there. Close the tab, and tomorrow you're scrubbing to re-find the dance break and guessing what speed you'd worked up to.
Stairway2Fast keeps the record. Every video remembers its loops — name up to 100 per routine ("intro", "verse 2", "dance break") — and the whole routine becomes a menu: one tap puts you back on a section at the speed you left off. Every minute of practice logs itself against the video and the section, marking which spots you've actually drilled and building a speed stairway for the routine, so after a couple of weeks you can see the thing that keeps you coming back: the day the chorus finally held together at full tempo after a week at 0.7×. Name five sections and Review starts putting them back in front of you on a rotation, so the transition you cleaned up last week doesn't quietly go rusty while you're drilling the new one. Streaks, daily goals, a practice history — earned, not typed in.
Choreography tips
- Chunk in 8-counts. Don't loop the chorus; loop one 8, get it into your body, then loop the next. Join them only when each one runs clean on its own. The handles go down to fractions of a second, so "counts 5–8 only" is a legitimate loop.
- Mark before you go full-out. Run the loop at 0.5× just marking — small, low-energy, watching the video — until the sequence is in your head. Then bring the energy and start climbing the speed.
- Name a loop per section of the routine. "Intro", "verse", "pre-chorus", "dance break", "ending" — saved once, each section is one tap away for the rest of the month, at its own remembered speed.
- Flip it if it isn't already mirrored. Many dance practice videos are filmed mirrored for learners; if yours wasn't, the player's own Flip button mirrors the video left-to-right for you, so "their right" reads as "your right" without you doing the translation in your head on every count. It's saved per video, so a routine you've flipped once stays flipped.
- Climb in notches, not leaps. 0.5× → 0.6× → 0.75× → 0.85× → full. If a notch falls apart, drop back one and run it clean twice before trying again.
- Let a well-timestamped tutorial name its own sections. Some dance channels already write "0:00 warm-up", "1:12 8-count 1", "2:40 8-count 2" in the description. When they do, Stairway2Fast offers those timestamps as ready-made loops the moment you add the video — tick the ones you want and they're saved and named without you dragging a single handle. Most videos don't have this, so treat it as a bonus, not something to count on.
Free vs Pro, honestly
Everything above — looping, slow motion, named loops, Review, all the practice tracking — is free, with no account. Uploading your own footage (class recordings, rehearsal videos) is free too, but it does need a free account — a guest can't upload, and signing up costs nothing; footage then stays on the device you added it on. Pro is £4.99 / €5.99 / $6 a month, or £47 / €57 / $58 a year, and it adds cloud sync so your own footage follows you to every device you practise with, two deeper insight views into your speed climb across routines, and — for musicians rather than dancers — splitting an uploaded song into its separate instrument tracks.
FAQ
Does the music sound strange slowed down?
It sounds slower, not lower. Playback uses pitch-preserving time-stretch, so the track keeps its pitch at 0.5× — the counts and the feel of the song stay recognisable instead of turning into a smear.
Do I need an account?
No — try it as a guest first. Everything you'd want mid-rehearsal (loops, the speed you settled on, your practice history) lives in that browser tab from the first video you add. Sign up later and it all moves with you, with nothing to redo.
Is this allowed by YouTube?
Yes. Nothing is downloaded, ripped, or rehosted — the routine stays exactly where the choreographer posted it, playing through YouTube's own player, with the loop and speed handled by YouTube's own public player API.
Does it work on a phone or tablet?
Yes — it's a web app, so it runs in the browser on a tablet or phone as well as a laptop. A tablet propped up at the front of the room works well for run-throughs.
Can it mirror the video for me?
Yes. A Flip button in the player mirrors the video left-to-right, so a tutorial filmed facing the camera reads the way it would in a mirror. It's remembered per video, so you set it once per routine.
Can it slow down any dance video?
Any video that allows embedding (nearly all dance practice videos and tutorials do). If a channel has disabled embeds, YouTube blocks playback outside youtube.com — no tool can change that.
Get the dance break into your body. Frame one 8-count, slow it to half speed, and climb back to tempo — with the record to prove it.