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Boost your productivity

A free and open source code snippets manager for developers. It helps you create and organize your own personal snippets collection and have quick access to it.

massCode allows you to organize snippets using multi-level folders as well as tags. Each snippet has fragments - tabs, which gives even greater level of organization.
massCode uses Codemirror as the basis for the editor and .tmLanguage as the grammar for syntax highlighting. This tandem opens the door to over 600 existing grammars. The application currently supports more than 160 grammars. In addition to .tmLanguage, the application supports .tmTheme for themes. There is also support for Prettier for code formatting.
massCode allows you to write in Markdown and provide support to syntax highlighting, tables, list and other formatting. Also massCode supports Mermaid - diagramming and charting tool that renders Markdown-inspired text definitions to create and modify diagrams dynamically.
Presentation Mode
massCode allows you to make a presentation out of a sequence of snippets. It's great for classroom use, team meetings, conferences or simply reviewing notes on your own.
Real-time Render for HTML & CSS
You can not only collect snippets, but also see the rendering result for HTML and CSS in real time. Test the idea or just view the result.
It is impossible to imagine a productive snippets manager without quick access to snippets. Therefore massCode has a fast full-text search with highlighting of the search query.
massCode automatically saves any changes you make during work, so you don't have to worry about losing changes.
You can use any service that provides cloud synchronization, such as iCloud Drive, Google Drive, Dropbox or other similar.
massCode uses a simple JSON to store your data. The database files are on your local computer.
massCode supports extensions for VS Code , Raycast and Alfred , which gives even more possibilities to use application. With the VS Code extension you get practically zen mode, search for the necessary snippets and insert them immediately or save the selected code sections as a snippet.
Create beautiful snippet images on different backgrounds and in different modes.
massCode is available in English, Español, Português (Brasil), Русский, 中文 (简体), 中文 (繁體), 中文 (繁體 香港特別行政區) & 日本語 languages.

massCode released under the AGPL v3 License.
Snippet collection released under the CC-BY-4.0 License.