simonbs/Runestone

Health v2 · maintenance only

Adoption not part of the score

3201 stars · 220 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Runestone is a performant plain text and code editor library for iOS built in Swift. It uses Tree-sitter for syntax highlighting and offers features like line numbers, invisible characters, search, and extensive customization.

Use cases

• embed a code editor in an iOS app
• syntax-highlighted text editor for Swift/iOS
• show line numbers and invisible characters in a text view
• build an iOS code editor with Tree-sitter parsing
• search text with regular expressions in an editor
• customize fonts and colors of a code editor

When to choose

• you need a fast, native iOS text/code editor component
• you want Tree-sitter-based syntax highlighting on iOS
• you need fine-grained editor customization like line wrapping, page guides, and line endings

When to avoid

• you need a cross-platform editor (Android, desktop, web)
• you need a full-featured IDE rather than an embeddable editor component
• your project is not in the Apple/Swift ecosystem

Facets

library · maturity active

editor ui-components parser text-editors mobile-development developer-tools syntax-highlighting tree-sitter code-editor textview line-numbers ios swift mobile

Member repositories

For agents

markdown · JSON · MCP: product_card(name="simonbs/Runestone")