How Highlights uses handwritten WebAssembly lexers, SIMD, and incremental tokenization to highlight code at native speed.
twinkleplop — plop some twinkle in your code
A syntax highlighter and code authoring toolkit. Small, fast, customisable.
Highlighters
Realistic, customizable highlighter-pen marks for the web. Bindings for React, Vue, and Svelte.
Lexicon Embeds Overview
There’s an excellent discussion and thread about syntax highlighting of code blocks happening today: I think most notably there’s some alignment around using a lexicon to represent code blocks (say Tangled’s strings) and embedding those, rather than just doing syntax highlighting w/in the constraints of a bsky post. This seems like a good place to hammer a bunch of things out.
Markdown | Codecademy
Markdown is a lightweight markup language for creating formatted text using a plain-text editor.
Lumis - Syntax Highlighter
Syntax highlighting powered by Tree-sitter and Neovim themes. One API across CLI, Rust, Elixir, JavaScript / TypeScript, browsers, and Java.
regex101: build, test, and debug regex
Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.
Overview
The documentation includes a lot of code snippets. The language hint lets you know what language the snippet is written in.
Font with Built-In Syntax Highlighting
An experiment in javascript-free syntax highlighting, made possible by opentype contextual alternates and COLR table
Diffs, from Pierre
@pierre/diffs is an open source diff and code rendering library. Rich syntax highlighting, edit mode, support for custom and Shiki themes, virtualization, and more.
code-yeongyu/lazycodex
LazyCodex: Codex for no-brainers. You don't need to think. Just prompt with ultrawork.
KPaste - Share Code & Text Snippets
Share code and text snippets with syntax highlighting, paste management, and easy sharing. Built on ATProto.
TractorBeam: Malleable AI support for the way that you read - AI in the Last Mile
Introducing TractorBeam, a browser extension to develop custom AI highlighting systems on PDFs