Snap! Build Your Own Blocks

https://snap.berkeley.edu

Try Snap! Now

a visual, blocks based programming language inspired by Scratch

written by Jens Mönig and Brian Harvey
jens@moenig.org, bh@cs.berkeley.edu

Snap! Community

This repository contains the source code for Snap! IDE. If you have questions about using Snap!, please check out the Snap! Forum.

We also maintain an active community at snap.berkeley.edu, where you can save and share your own projects. You can also check out the code, if you're curious.

Security

If you have security concerns, please do not post them publicly. Please reach out to us at contact@snap.berkeley.edu.

Documentation

The definitive source of how to use Snap! is the Snap! Manual.

API.md describes the API for modifying the Snap! interface.
Extensions.md describes the basic interface for building JavaScript extensions for Snap!
Migrating.md gives guidance for older extensions to migrate to Morphic 2 and Snap! v6.
Offline.md has instructions for running Snap! as a progressive web application.

Please read the Contribution Guidelines before making an issue or pull request. Thanks!

License

Copyright (C) 2008-2025 by Jens Mönig and Brian Harvey

Snap! is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License along with this program. If not, see https://www.gnu.org/licenses/.

Want to use Snap! but scared by the open-source license? Get in touch with us, we'll make it work.

License

brownplt/Snap

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