About Loopsmith

Loopsmith is a practice tool built for musicians and learners who use YouTube as their primary source for tutorials, backing tracks, and performances. It gives you precise control over any YouTube video so you can focus on the sections that matter.

The problem

YouTube's built-in controls aren't designed for practice. Scrubbing to the right spot, replaying the same 4 bars, or slowing down a fast passage all require constant fiddling. Every time you lose your place, you lose your focus.

How it works

Paste any YouTube URL to load a video instantly
Create named loop sections (intro, verse, solo, etc.) on an interactive timeline
Switch between loops with a single click or keyboard shortcut
Scrub frame-by-frame with arrow keys, constrained to the active loop
Adjust playback speed to slow down tricky passages
Drag loop regions or resize their edges directly on the timeline
All your videos and loops are saved to the cloud and sync across devices

Who it's for

Anyone who learns by ear or practices along with video: guitarists, pianists, drummers, vocalists, dancers, language learners, or anyone who needs to replay a specific section over and over until they've got it down.

Keyboard shortcuts

Space Play / Pause

← → Scrub ±0.5s

J / L Scrub ±1s

K Pause

[ / ] Set loop start / end

N New loop

1-9 Select loop 1-9

Esc Deselect loop

Built with

Next.js, React, TypeScript, Tailwind CSS, Supabase, and the YouTube IFrame API.