Screenshooter

Screenshooter is a client-side tool for creating consistent, beautiful social media images. Upload a screenshot, pick a canvas size, tweak the effects, add text, and download a PNG, without leaving the browser.
Overview
Creating good-looking OpenGraph images, Twitter banners, and other social graphics usually means opening a design tool, fiddling with templates, and exporting manually. Screenshooter strips that down to a single HTML page with no build step, no server, and no dependencies. Everything runs in the browser using HTML5 Canvas.
Built entirely by Claude - initially with Sonnet 4, later improved with Opus 4.6.

Features
- Preset canvas sizes - Twitter Banner, Twitter Timeline, OpenGraph, 16:9, Email, or define your own custom dimensions
- Image effects - Skew, grayscale, zoom, opacity, grain, and depth of field
- Text overlays - Title and body text with customizable color, size, and alignment
- PNG export - One-click download of the final image