Nimue — Github Storage for Excalidraw

Save, load, and autosync Excalidraw drawings to a private GitHub repository.

Nimue - Excalidraw Companion Never lose your Excalidraw drawings again. Sync, manage, and access your diagrams from anywhere with automatic GitHub backup. Overview Nimue seamlessly integrates Excalidraw with GitHub, turning your browser into a powerful diagram management system. Whether you're creating technical diagrams, wireframes, or quick sketches, Nimue ensures every drawing is safely backed up and accessible across all your devices. No more lost work, no manual exports – just draw, save, and sync. Perfect for developers, designers, and anyone who relies on Excalidraw for visual thinking. Key Features - Automatic GitHub Sync – Every drawing is backed up as a GitHub Gist, giving you version control and peace of mind. Access your drawings from any computer. - Visual Gallery – Browse all your drawings in a clean, organized gallery. See when each drawing was last updated and quickly find what you need. - One-Click Load & Save – Click any drawing to instantly load it into Excalidraw. Made changes? Save them back to GitHub with a single click. - Drawing Management – Create new drawings, rename them, duplicate existing ones, or view them directly on GitHub. Everything you need in one place. - Zero Setup Friction – Connect your GitHub account once, and you're ready to go. All your existing GitHub Gists containing Excalidraw drawings automatically appear. - Private & Secure – Your GitHub token stays in your browser. No data passes through our servers – it's just you and GitHub. How It Works 1. Install Nimue from the Chrome Web Store and pin it to your toolbar. 2. Connect to GitHub by entering a Personal Access Token (instructions provided). 3. Open Excalidraw at https://excalidraw.com and start drawing. 4. Click the Nimue icon to see your drawing gallery, save your current work, or load a previous drawing. Your drawings are now automatically synced to GitHub, accessible from any device where you install Nimue. Why You'll Love It Never Lose Work Again – Your drawings are safely stored on GitHub, not just in your browser’s local storage. Work Across Devices – Start on one computer and continue anywhere. Version Control for Diagrams – Use GitHub’s built-in history to review previous versions. Organized Workflow – Keep all your diagrams organized with clear names and timestamps. Lightning Fast – Built with React, Vite, and TypeScript for speed and efficiency. Privacy & Security No Data Collection – Nimue doesn’t collect or transmit any of your data. Your Token, Your Browser – The GitHub token stays securely in Chrome’s local storage. Open Source – The full source code is available on GitHub for transparency. Minimal Permissions – Only the permissions needed to function: access to excalidraw.com, storage, and tabs. GitHub Gists – Drawings are stored as GitHub Gists; you control visibility and can delete them anytime. Getting Started 1. Install Nimue from the Chrome Web Store. 2. Pin the extension to your toolbar for easy access. 3. Create a GitHub Personal Access Token: - Go to https://github.com/settings/tokens - Generate a new token with the “gist” scope. 4. Connect Nimue: - Open Excalidraw.com - Click the Nimue icon, then “Connect” - Paste your GitHub token and submit. 5. Start using it: - Create or modify drawings - Use the gallery to view and load - Click “Save” to back up work - Create new drawings with “+” FAQs Does this extension store my drawings? No. All drawings are stored in your GitHub account as Gists. Which websites does it work on? Only https://excalidraw.com. Is it free? Yes, completely free. Will it slow down my browser? No. It only runs when you’re on Excalidraw.com or when opened manually. Can I use it on other browsers? Works on Chrome and Chromium-based browsers; Firefox support may come later. What happens if I delete a Gist? It will disappear from Nimue’s gallery. Can other people see my drawings? Public Gists are viewable by link; private Gists stay hidden. Do I need an internet connection? Yes, to sync with GitHub. Excalidraw itself works offline. Support & Feedback Found a bug or have feedback? Visit the GitHub repository or Chrome Web Store page. Not affiliated with Excalidraw – Nimue is an independent extension created by developers who love Excalidraw.