DevHelper is a standalone HTML + JavaScript tool for developers.
It performs quick cleanup and formatting of source code - including HTML, LiteView templates, PHP, JavaScript, CSS, and JSON.
No installation required. Just open the file in your browser.
- Remove PHPDoc and inline comments
- Replace forbidden/special characters
- Re-indent PHP / JS / C-style code
- Pretty-print HTML, CSS, and JSON
- Clean LiteView / Twig-like templates
- Download or clone this repository.
- Open
devhelper.htmlin your browser. - Paste your code in the left pane, choose an action, and click Go.
All operations are 100% client-side - no data ever leaves your machine.
Developed by Lars Grove Mortensen
Maintained by Aserno ApS - Released under GPL v3.
Released under the GNU General Public License v3.0 (GPL-3.0).
© 2025-present Aserno ApS.
Aserno ApS is a Danish software bureau specializing in pragmatic, performance-focused web engineering.
This project is open-source and independent of frameworks.