Still dragging the scrubber back to the same 10 seconds?

The slowdown that remembers.

Loop any YouTube video or your own recording, slow it down, and watch yourself climb back to full speed — week after week. Every video remembers exactly how you practised it.

Start practising No signup · free Create free account

Runs in any browser — the phone, tablet or laptop you already practise with. Nothing to install.

Lifetime
7h 38m
Songs
24
7 days
4h 22m
Practice Stairway
last 12 days
Each step is one day's climb.
Each day's medal = time practised: 5m10m30m1h2h rest day
Today by category
Guitar Lessons38m
Fun Practice7m
My Library3m

Open any video. Make it a practice loop.

Drag to frame the hard section, drop the speed, and it loops there until you've got it. Every control is built for repetition, not for watching. Upload your own audio and its waveform shows up free — line a loop edge up right on the beat.

Practice player
1.00×
Loop − 0:00 + → − 4:35 + 🗑
Speed − 1.00× +
↗Auto Solo Loops1 Stats Flip
⇤Mark start Mark end⇥
What you can adjust
Loop — Build, then Grind
Mark a start and end to frame any section. Build roams free; Grind locks the playhead inside.
Speed — 0.25× to 2×
Fine steps near 1×, pitch kept correct so slow practice still sounds right.
Auto-ramp slow → fast
Set reps and a bump per rep — it climbs the tempo for you while you play.
Named loops
Save Intro, Bridge, Chorus — one tap to jump between the sections of a song.
Mirror & stats
Flip the video to match a mirror, and open per-section stats any time.
Keyboard shortcuts
Space, ← →, and 0–9 for speed — it feels like a practice tool, not a video player.
Solo + play along Pro
Split a song into six tracks — solo one to study it, or mute one and play along with the band. On songs you upload.
Solo + Play along · Pro

Solo a track — or mute one and play along

Split a song into its six tracks. Solo one to study it note-for-note, or mute one and play along with the rest of the band — looped, slowed, in sync with the video. On songs you upload.

Isolate or play along
×

Solo — hear one on its own. Play along — mute one and play with the rest.

🎼Full mix (original)
VocalsSoloPlay along
DrumsSoloPlay along
BassSoloPlay along
Guitar betaSoloPlay along
Piano betaSoloPlay along
OtherSoloPlay along

Guitar & piano are experimental — they separate less cleanly than vocals, drums & bass.

⬇ Download currentDownload all 6
Study a part note for note
Solo the bass to learn the line, or the drums to lock your timing — nothing else in the way.
Play along with the band
Mute your own instrument and play along with the rest — looped and slowed, in perfect sync with the video.
One separation, all six tracks
Split a song once — every solo track stays ready, and any one is downloadable as an MP3 for offline practice.

Works on videos you upload — not YouTube, where the audio never reaches us.

Quick Jam · Free

Jam with a band — in any key

Set a key, tap a chord progression, pick a style, and play along to a backing band that follows you. No video needed — free for everyone.

Quick Jam beta

Set a key, tap a progression, hit play — the band jams the loop.

Key
Major Minor
C C# D D# E F F# G G# A A# B
Style · 4/4
Rock Blues Shuffle Pop 4/4 Ballad Funk Jazz Swing
Start from a progression
Pop I–V–vi–IV 50s I–vi–IV–V Blues I–IV–I–V Jazz ii–V–I 🎲 Surprise me
Progression — tap a bar, then a chord − +
C I G V Am vi F IV
Tempo
90 bpm
Auto speed-up
Gradually speeds up while you play.
Start
Mixer
Drums M S
Bass M S
Keys M S
Guitar M S

Bring the videos you already learn from.

Paste a YouTube link, import a whole playlist, or drop a file straight off your device. Nothing to upload to a shared library — your videos stay yours.

https://youtube.com/watch?v=fWkkchYEssU

Or paste a playlist URL to import every video at once.

The same loop-and-slow mechanic works for any motor skill
Guitar Piano Dance Drums Violin Bass Voice + anything you can record
PRACTICE DATA — YOUR MOAT

Every video remembers
how you practised it.

Streaks reward showing up. Stairway2Fast records the speed you practise each section at — so you can see the day you broke through 0.8× on the fast run, not just "you practised today."

  • Saved loops — the exact sections of the song you work on.
  • Speed stairway — time spent at every tempo, tier by tier.
  • Spots & medals — where your time went, and the tier you earned.
Canon Rock — JerryC
Guitar Lessons
44 min
Total practice
7
Days touched
2 weeks ago first played last played yesterday
Spots
1 spot
Sweep section SILVER
0:42–1:58 · 43 min · 133 sessions
0.6×0.7×0.75×0.8×0.85×0.9×0.95×1×
+1 tiny speed hidden (< 1 min total)

Spots are auto-grouped from where you've practised — overlapping sessions (within ~50%) merge into one card, and a spot shows your saved loop's name when it matches one.

Speed stairway
9 speeds · 44 min
0.6× LOCKED 2 min
0.65× LOCKED < 1 min
0.7× LOCKED 1 min
0.75× BRONZE 21 min
+ 5 more speeds up to 1×

Celebrate it. Share exactly what you choose.

Two kinds of sharing, never mixed up: post your week as a recap image, or send a friend the precise loop and speed you've been drilling. Nothing else leaves your account.

Share your day or week

Tap “Share image” → a portrait to post: your time, your climb, and every song at the speed you played it.

Stairway2Fast Daily recap
Thu, May 28
41 min
4 songs · best day this week
Biggest climb
Canon Rock · 0.7× → 0.9×
What you played
Canon Rock0.7→0.9×
12m
Stairway intro0.8→1×
9m
Fantaisie-Impromptu1×
7m
Share image
@mia_guitar stairway2fast.com
Send a friend or group — your practice loops
Share this video settings
Canon Rock — JerryC
×
Practice sections to share
✓ Intro · 0:13–0:20 6% – 9%
Auto 0.6× 0.7× 0.8× 1×
Sweep section · 0:31–1:35 (now) 14% – 43%
Note (optional)
Suggest a note
e.g. Loop the tricky bar slowly, then build back up to speed
0/500
Who can open this link
Anyone with the linkPublic — anyone with the link, no sign-in needed
Specific friends3 in your list
Pick who can open (2 selected)
All friends
Band (3) Duo (2)
✓ Mia Chen @mia_guitar
✓ Leo Park @leo_drums
Sara Lin @sara_piano

Your practice stats are never shared — the recipient builds their own.

Cancel Create share link

Your library follows you. Your data stays yours.

YouTube

Paste any link or playlist. We don't block ads — if you have Premium, your ad-free YouTube carries over in the same browser.

Local files

A video or audio file off your device, looped with the same tools. Stays in your browser — never leaves unless you turn on sync.

Cross-device sync

Sign up (free) and your library + practice history follow you from laptop to phone to tablet.

Your videos stay yours. We never host content publicly. No shared library, no scraping, no copyright drama.

What's free, and what isn't

Almost all of it is free, and not as a trial — it doesn't expire. Signing up is free too; it's what stops your practice history living in one browser.

Guest no account Free sign up, free Pro $6/month
Loop + slow down YouTube videos ✓ ✓ ✓
Loops saved between visits ✓ ✓ ✓
Automatic practice log ✓ ✓ ✓
Per-song speed chart ✓ ✓ ✓
Spaced review ✓ ✓ ✓
Jam over chords ✓ ✓ ✓
Shareable recap image ✓ ✓ ✓
YouTube videos 100 100 Unlimited
History survives a new device – ✓ ✓
Create practice links to share – ✓ ✓
Local video / audio files – 100, one device Unlimited
Cloud storage for uploads – – 50 GB
AI separation (your uploads) – – 15/month
Deeper insights – – ✓

Create a free account

Or keep going as a guest — Pro only ever appears in-app, when you reach for something it adds.

Common questions

Do I need an account?
No — open the app and start practising as a guest. Your library and practice history live in your browser (IndexedDB). When you sign up, everything migrates to your account so you don't lose anything.
Why not just use YouTube's built-in loop?
YouTube's loop is a single coarse region that resets when you close the tab. Ours lets you save named loops (intro, bridge, chorus — one tap to switch), auto-ramp from slow to full speed, and see per-section stats so you know that hard run took 45 minutes and climbed from 0.7× to 0.9×. Keyboard shortcuts make it feel like a practice tool, not a video player.
Does it really work for things other than guitar?
Yes — the player, loop controls, speed ramp, and Stairway Stats are completely instrument-agnostic. Loop a piano scale, a dance 8-count, a vocal phrase, a drum fill, a language-shadowing drill — same mechanic. The "Examples" set that ships with every new account spans eight different instruments to make the breadth concrete.
Is my practice data private?
Yes. There's no public feed, no leaderboard, no streak-pressure social. Friends only ever see what you explicitly send — a single practice loop, or a recap you choose to post. Never your whole history by default. See our Privacy Policy.
What does it cost?
Open the app free — no signup. Sign up (also free) for cross-device sync and all the practice tools. Pro is $6/month or $58/year and unlocks power features like splitting a song into tracks to Solo one instrument or play along with the rest, and cloud-mirroring your own uploads (record a lesson, keep it on every device); the upgrade only ever appears in-app when you reach for what it adds, and you can cancel any time.
Does it work on mobile?
Yes, with the best experience on desktop or iPad in landscape — the loop slider and speed controls love a wider screen. Phone works too (install as a PWA from the share menu), just expect a tighter layout.

Stop watching tutorials. Start practising them.

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