Quill

Free plan APIWeb

What Quill is

Quill is an API-driven rich text editor for developers who need structured access to editing content and activity. Its API uses JSON for input and output, lets applications access or change content by indexes and lengths, and reports edits through events. The document model can be extended with custom formats and embedded content, such as slide decks, interactive checklists, and 3D models.

Built-in formatting includes text styles, links, headings, lists, alignment, code blocks, images, and video; formula formatting requires KaTeX. Official modules cover configurable toolbar, clipboard, keyboard, history, and syntax functionality. The History module supports undo and redo with settings for delay, stack size, and whether programmatic changes can be undone. Clipboard matchers can be configured for copy, cut, and paste, and careful HTML handling is important because improper handling can create cross-site scripting vulnerabilities.

Developers can configure toolbar controls and handlers or supply a custom HTML toolbar. Quill offers Snow and Bubble themes and supports modern desktop, tablet, and phone browsers. It is maintained by Slab, is BSD-licensed for personal and commercial projects, and is available free through npm or jsDelivr, with full and core builds.

Who it suits

Quill suits developers building web or API-based products that need an extensible rich text editor and structured access to content and change events. It is a fit for projects that want to configure editor modules, formats, and toolbar behavior, including custom embedded content.

What it does well

JSON-based API exposes content, edits, and events.
Document model supports custom formats and embedded content.
Built-in modules cover toolbar, clipboard, keyboard, history, and syntax.
BSD license permits personal and commercial projects.
Available through npm or jsDelivr in core and full builds.

What to know first

Formula formatting requires KaTeX.
Table editing is not supported.
Improper clipboard HTML handling can create cross-site scripting vulnerabilities.

Plans

Plan	Billed and limits	Price
Quill	Free, open-source rich text editor · BSD licensed for personal and commercial projects	Free

As quilljs.com lists them, read 8 Oct 2026. The maker's own page has the final word.

Getting started

Open quilljs.com.
Install Quill through npm or load it from jsDelivr.
Choose the full or core build.
Configure the editor modules, formats, and toolbar for your application.

Verdict

Choose Quill if you need a free, extensible editor with JSON-based content access and configurable modules. Look elsewhere if table editing is a requirement or you need formula formatting without KaTeX.

Questions

How much does Quill cost?

Quill is free, with a listed price of $0 plan. Its official pages describe it as open source and do not list paid plans.

Is there a free trial?

No. Quill is available free rather than through a trial.

Which platforms does Quill support?

Quill is listed for API and web. It supports modern browsers on desktops, tablets, and phones.

Is Quill open source?

Yes. Quill is permissively licensed under BSD for personal or commercial projects.

Who maintains Quill?

Quill is developed and maintained by Slab.

Can Quill handle custom content and media?

Yes. Its document model can be extended for custom formats and embeds; built-in media support includes images, video, and formulas requiring KaTeX.

Facts from Quill's own pages

API and content model: Quill exposes APIs for accessing and changing content by indexes and lengths, and its event API reports changes in JSON. · quilljs.com, 8 Oct 2026
Browser support: Quill supports modern browsers on desktops, tablets, and phones. · quilljs.com, 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. · quilljs.com, 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. · quilljs.com, 8 Oct 2026
Customization: Developers can configure toolbar controls and handlers, or provide a custom HTML toolbar. · quilljs.com, 8 Oct 2026
Editor model: Quill provides granular access to editor content, changes, and events through an API, using JSON as input and output. · quilljs.com, 8 Oct 2026
Formatting: Built-in formats include text styles, links, headings, lists, alignment, code blocks, images, video, and formulas that require KaTeX. · quilljs.com, 8 Oct 2026
Installation: Quill can be loaded from jsDelivr or installed through npm, with full and core builds available. · quilljs.com, 8 Oct 2026
License: Quill is developed and maintained by Slab and permissively licensed under BSD for personal or commercial projects. · quilljs.com, 8 Oct 2026
Maker: Quill is developed and maintained by Slab. · quilljs.com, 8 Oct 2026
Modules: Officially supported modules include configurable functionality such as toolbar, clipboard, keyboard, history, and syntax. · quilljs.com, 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. · quilljs.com, 8 Oct 2026
Product: Quill is an API-driven rich text editor built for developers. · quilljs.com, 8 Oct 2026
Security and compliance: The official pages reviewed do not state security certifications or compliance attestations. · quilljs.com, 8 Oct 2026
Themes: Quill provides two officially supported themes: Snow and Bubble. · quilljs.com, 8 Oct 2026
Toolbar: The toolbar can use configured controls or a custom HTML container, and its handlers can be customized. · quilljs.com, 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. · quilljs.com, 8 Oct 2026

Where Quill stands on Freedom251

Rich Text Editor Software#16 of 37