Quill
Quill is a free, API-driven rich text editor for developers.
What Quill is
Quill is a free, API-driven rich text editor for developers. Its API exposes editor content, changes, and events using JSON input and output, with methods for reading and changing content by indexes and lengths. The document model can be extended with custom formats and embedded content such as slide decks, interactive checklists, and 3D models. Built-in formats include text styles, links, headings, lists, alignment, code blocks, images, and video; formulas require KaTeX. Official modules cover toolbar, clipboard, keyboard, history, and syntax functions. History supports configurable undo and redo behavior, including delay, stack size, and treatment of programmatic changes. Clipboard matchers handle copy, cut, and paste, but the documentation warns that unsafe HTML handling can create cross-site scripting vulnerabilities. Developers can customize toolbar controls and handlers or provide an HTML toolbar. Quill includes Snow and Bubble themes, supports modern desktop and mobile browsers, and is maintained by Slab under the BSD license.
Good
- Free BSD-licensed editor
- JSON-based content and event API
- Extensible document model and embeds
- Configurable history and clipboard modules
- Snow and Bubble themes
Watch out
- Formula support requires KaTeX
- No table editing listed
- Improper HTML handling can create XSS vulnerabilities
- No free trial is offered
Who it suits
Quill suits developers building web editors who need structured JSON content and event APIs. It also fits projects requiring custom embeds, configurable modules, and permissive personal or commercial licensing.
Verdict
Quill offers a developer-focused editing core with structured data access and extensive customization. Review clipboard handling carefully, especially when accepting or transforming HTML content.
Plans and prices
From Quill's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Quill | Free | Free, open-source rich text editor · BSD licensed for personal and commercial projects |
The facts
Each one read from Quill's own pages, with the date it was checked.
What it does
- API and content model
- Quill exposes APIs for accessing and changing content by indexes and lengths, and its event API reports changes in JSON.checked 8 Oct 2026
- Clipboard
- The Clipboard module handles copy, cut, and paste with configurable matchers, and its documentation warns that improper HTML handling can cause cross-site scripting vulnerabilities.checked 8 Oct 2026
- Custom content
- Quill's document model can be extended to support custom formats and content, including embedded slide decks, interactive checklists, and 3D models.checked 8 Oct 2026
- Customization
- Developers can configure toolbar controls and handlers, or provide a custom HTML toolbar.checked 8 Oct 2026
- Editor model
- Quill provides granular access to editor content, changes, and events through an API, using JSON as input and output.checked 8 Oct 2026
- Formatting
- Built-in formats include text styles, links, headings, lists, alignment, code blocks, images, video, and formulas that require KaTeX.checked 8 Oct 2026
- Installation
- Quill can be loaded from jsDelivr or installed through npm, with full and core builds available.checked 8 Oct 2026
- License
- Quill is developed and maintained by Slab and permissively licensed under BSD for personal or commercial projects.checked 8 Oct 2026
- Modules
- Officially supported modules include configurable functionality such as toolbar, clipboard, keyboard, history, and syntax.checked 8 Oct 2026
- Pricing
- The official Quill pages describe it as an open-source project available for free use and do not list paid plans.checked 8 Oct 2026
- Product
- Quill is an API-driven rich text editor built for developers.checked 8 Oct 2026
- Security and compliance
- The official pages reviewed do not state security certifications or compliance attestations.checked 8 Oct 2026
- Themes
- Quill provides two officially supported themes: Snow and Bubble.checked 8 Oct 2026
- Toolbar
- The toolbar can use configured controls or a custom HTML container, and its handlers can be customized.checked 8 Oct 2026
- Undo and redo
- The History module supports undo and redo, with configurable delay, maximum stack size, and whether programmatic changes can be undone.checked 8 Oct 2026
Where it runs
- Browser support
- Quill supports modern browsers on desktops, tablets, and phones.checked 8 Oct 2026
The company
- Maker
- Quill is developed and maintained by Slab.checked 8 Oct 2026
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