fastmail/Squire
The rich text editor for arbitrary HTML. observed · 2026-08-28
Health v2 · maintenance only
77/100
- Activity 99
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 5422
- days_rel: n/a
- days_push: 7
- n_releases_24m: 0
Adoption not part of the score
4908 stars · 413 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Squire is a lightweight (16KB gzipped, zero-dependency) HTML5 rich text editor built in TypeScript that treats arbitrary HTML as the source of truth rather than a structured internal data model. Originally built for Fastmail email composition, it excels at preserving third-party HTML like nested blockquotes and is designed to be integrated with your own UI framework without shipping any toolbar or widgets.
Use cases
- embed a rich text editor for composing HTML emails in a web app
- edit arbitrary HTML content without a structured data model losing formatting
- replace a textarea with a lightweight rich text editing component
- build a custom WYSIWYG editor with my own toolbar UI
- preserve nested blockquotes when quoting or forwarding emails
- add rich text editing to a React/Vue app without bundling a second UI toolkit
When to avoid
- you want a batteries-included editor with toolbars, widgets and overlays out of the box
- you prefer editors with a structured document model (e.g. ProseMirror, Slate) for schema-constrained content
- you need to support Internet Explorer
Facets
library · maturity stable
editor ui-components frontend-framework web-development frontend text-editors email browser cross-platform rich-text-editor html5 wysiwyg email-composition contenteditable typescript lightweight
1 source
- readme: https://github.com/fastmail/Squire · fetched 2026-08-28 · d9eb4a084036
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| fastmail/Squire | main | 77 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem