Collaborative Rich Text Editor (CodeMirror)

This example shows how to build a collaborative code editor with Liveblocks, Yjs, CodeMirror, and Next.js.

As users edit the code, changes will be automatically persisted and synced—allowing for collaborative code editing experience. Users will also be able to see who else is currently online and each others cursors.

Getting started

Run the following command to try this example locally:

npx create-liveblocks-app@latest --example nextjs-yjs-codemirror --api-key

This will download the example and ask permission to open your browser, enabling you to automatically get your API key from your liveblocks.io account.

Manual setup

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Alternatively, you can set up your project manually:

• Install all dependencies with npm install
• Create an account on liveblocks.io
• Copy your public key from the dashboard
• Create an .env.local file and add your public key as the LIVEBLOCKS_SECRET_KEY environment variable
• Run npm run dev and go to http://localhost:3000

Deploy on Vercel

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To both deploy on Vercel, and run the example locally, use the following command:

npx create-liveblocks-app@latest --example nextjs-yjs-codemirror --vercel

This will download the example and ask permission to open your browser, enabling you to deploy to Vercel.

Develop on CodeSandbox

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After forking this example on CodeSandbox, create the LIVEBLOCKS_SECRET_KEY environment variable as a secret.