Snap! Build Your Own Blocks http://snap.berkeley.edu a visual, blocks based programming language inspired by Scratch written by Jens Mönig and Brian Harvey jens@moenig.org, bh@cs.berkeley.edu Copyright (C) 2008-2020 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 . Want to use Snap! but scared by the open-source license? Get in touch with us, we'll make it work.