Powered by Claude · Whisper · FFmpeg

Turn YouTube
into Shorts
in minutes.

Paste a link. AI finds the best moments. Edit in a pro timeline editor. Export a polished 9:16 short — captions, color grade, motion — all baked in.

No credit card · Runs locally · Your data stays yours

10×Faster than manual editing
< 2 minFrom URL to exported short
1080pH.264 9:16 output
100%Local & private

See it in action

From paste to publish
in under two minutes.

Watch a real editing session — URL input, AI clip selection, timeline editing, export.

shortslab.app/editor/clip_01

Watch the demo

Editor walkthrough · 2 min timelapse

AI processing complete · 3 clips found
1080×1920 · H.264
AI clip selection Word-level captions Motion keyframes Color grading One-click export

Real results

Made with ShortsLab.

These shorts were created entirely inside ShortsLab — AI clip selection, captions, color grade, export.

Scroll to see more →

Features

Everything in one place.

No Premiere. No CapCut. No subscription. A complete short-form workflow that runs on your machine.

AI Clip Selection

Claude reads the full transcript and audio energy peaks to surface the moments most likely to go viral.

9:16 Frame Editor

Drag to reframe, scroll to zoom, flip horizontal. Full creative control over every pixel of your short.

Motion Keyframes

Animate pan and zoom across timestamps with 6 easing curves. Ken Burns, dolly-ins, reactive framing.

Word-Level Captions

Whisper timestamps every word. Animated highlights, 13 fonts, 6 presets, pop/fade/slide animations.

Color Grading

Brightness, contrast, saturation, temperature, shadows, highlights, vignette — all in real-time preview.

One-Click Export

FFmpeg renders 1080×1920 H.264. Every edit, caption, grade, and motion baked in — ready to upload.

How it works

Three steps.
That's really it.

1
01

Paste a YouTube URL

Any video, any length. ShortsLab downloads, transcribes with Whisper, and maps audio energy peaks.

2
02

AI picks the best moments

Claude scores every segment by emotional intensity, pacing, and quote-worthiness. You get ranked clips.

3
03

Edit, refine, export

Reframe, caption, color grade, animate. Hit export — your polished 9:16 Short is ready in seconds.

10×
Faster than manual
< 2 min
URL → exported short
1080p
9:16 H.264 output
0 cloud
Fully local & private

Built on open tech

Claude AI· Clip analysis & scoring
Whisper· Word-level transcription
FFmpeg· Video render & export
Next.js· Frontend editor
yt-dlp· Video download

Your first short is
one paste away.

Paste a YouTube URL, pick your clips, export in seconds.

Plans from $8/mo · Cancel anytime