Subject-aware · in your browser

It sees the subject.
It keeps it in shot.

Drop one image or video. WMC reframes it for every platform — with the focal point locked in shot at every aspect ratio. Drag the splitter below to see how.

← Center cropSubject-aware →
9:16
9:16Reel
1:1
1:1Square
16:9
16:9YouTube
drop or click anywhere
one source · every aspect ratio · subject locked
Free100% in browserNo uploadWorks offline
01

Stays on your device

Mediapipe, ffmpeg, libheif, and Pica all run in the browser via WebAssembly. Files never leave your machine — sensitive content stays sensitive.

02

Every preset, one click

Reels, TikTok, IG, YouTube, X, LinkedIn, OG. Export one or batch them all to a zip. Drop a 4K video and get every aspect ratio with the subject centered.

03

Pixel-perfect output

Lanczos resampling via Pica. EXIF preserved or stripped on demand. HEIC and AVIF in, JPG/PNG/WebP/MP4 out. Built for delivery, not previews.

YouTube · Thumbnail · 16:9YouTube · Shorts · 9:16YouTube · Channel banner · 16:9X · Post image · 16:9X · Header · 3:1X · Summary card · 1.91:1Instagram · Feed square · 1:1Instagram · Feed portrait · 4:5Instagram · Story / Reel · 9:16LinkedIn · Post image · 1.91:1LinkedIn · Profile banner · 4:1TikTok · Video / cover · 9:16Web · Open Graph · 1.91:1Web · Square OG · 1:1YouTube · Thumbnail · 16:9YouTube · Shorts · 9:16YouTube · Channel banner · 16:9X · Post image · 16:9X · Header · 3:1X · Summary card · 1.91:1Instagram · Feed square · 1:1Instagram · Feed portrait · 4:5Instagram · Story / Reel · 9:16LinkedIn · Post image · 1.91:1LinkedIn · Profile banner · 4:1TikTok · Video / cover · 9:16Web · Open Graph · 1.91:1Web · Square OG · 1:1
Runs entirely in your browser. No upload, no tracking.WMC · 2026