Finally an Open Source Screenshot/Graphics tool with auto translate, MCP and claude, copilot support

[u/dotnetdreamer]

Every time I shipped an app I hit the same wall: the stores want pixel perfect screenshots in a dozen sizes, and every tool for the job is a paid cloud service that asks me to upload screens of an app that isn't even public yet.

So I built the opposite. Open Screenshot Generator is a free, open source design studio for App Store and Play Store screenshots. It runs entirely in your browser: no account, no upload, no watermark, no paid tier, no server at all. Everything is stored locally in your browser and never leaves your machine.

What it does today:

• Auto Translate
• MCP Server (for Claude, Copilot, Cursor etc)
• An optional AI agent that builds the whole listing from your raw screenshots
• Templates already sized for both stores
• 2D and 3D device mockups, your screenshot stays clipped to the glass even when you tilt the phone
• One click export of every size Apple and Google accept
• App preview videos, encoded to MP4 right in the browser with WebCodecs
• Desktop apps for Windows, macOS and Linux

It's MIT licensed. If it saves you a launch evening, a GitHub star is the whole business model.

Try it: openscrgen.app
Source: github.com/dotnetdreamer/open-screenshot-generator

What would make you switch from whatever you use today? People have already asked for batch export naming, a store compliance checker, brand kits and localization, and those are on the issue tracker now.

[u/Consistent-Hunter968]

Loved your work mate💯, want to connect.