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License GPL 3 Join the chat MELPA MELPA stable version Build Status

Modern on-the-fly syntax checking extension for GNU Emacs. Try it!

For a more gentle introduction read the Installation instructions and go through Quickstart guide.

Please ask questions about Flycheck on Stack Exchange or in our Gitter chat, and report bugs to our issue tracker.

We welcome all kinds of contributions, whether you write patches, open pull requests, write documentation, help others with Flycheck issues, or just tell other people about your experiences with Flycheck. Please take a look at our Contributor’s Guide for help and guidance about contributing to Flycheck.

We strive to create a safe, friendly and welcoming environment in the Flycheck community and have a Code of Conduct that defines acceptable and welcome behaviour as well as sanctions for violations. All contributors and all participants are expected to follow it, on Github, Gitter, Emacs.SX or any other place that’s part of Flycheck’s broader community.

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

Flycheck 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 General Public License for more details.

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