ProseMirror vs Squire
ProseMirror
prosemirror.netSquire
github.comSide by side
| Figure | ProseMirror | Squire |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 1 | 0 |
| Spec score · Rich Text Editor Software | 8.4 (#6) | 6.7 (#32) |
| Browser support | The library works on recent Firefox, Chrome, Safari, and Edge versions, as well as Internet Explorer 11. | Squire supports reasonably recent browsers and no longer supports any version of Internet Explorer. |
| Installation | The official site says the easiest way to install ProseMirror is with npm. | The README documents installation with npm install squire-rte and use through JavaScript imports or a script tag. |
| License | The project is released under the MIT license and the homepage says users are legally free to use it commercially. | Squire is released under the MIT license. |
| Purpose | ProseMirror is a toolkit for building rich-text editors on the web. | Squire is an HTML5 rich text editor for arbitrary HTML. |
| Support | The project directs questions and discussion to its forum and bugs to its issue tracker, with a code of conduct for communication. | The README asks bug reporters to reproduce issues using the repository's Demo.html to help distinguish editor bugs from integration bugs. |
Plans
In their own words
ProseMirror
ProseMirror is a toolkit for developers building rich-text editors on the web. It supports structured documents through a WYSIWYG-style interface while letting applications define document shape and content. Instead of treating a document as an HTML blob, it gives application code control over a custom data structure. Schemas and plugins provide ways to customize that structure and extend editor behavior. Four core modules handle the document model, editor state, view, and transformations; additional modules offer commands, key bindings, undo history, input macros, collaboration, and a basic schema. Multiple people can edit together in real time. Examples cover Markdown, image uploads, custom schemas, menus, code editors, footnotes, and track changes. ProseMirror is free, open source, and legally usable commercially; it can be self-hosted and is installed through npm. It works in recent Firefox, Chrome, Safari, and Edge versions, as well as Internet Explorer 11. It is a modular toolkit rather than a ready-made editor component, and implementation generally involves a bundler.