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A syntax-highlighting pager for git, diff, grep, rg --json, and blame output

a structural diff that understands syntax 🟥🟩

Super simple build framework with fast, repeatable builds and an instantly familiar syntax – like Dockerfile and Makefile had a baby.

Markdown parser, done right. 100% CommonMark support, extensions, syntax plugins & high speed

Full-stack web framework for Zig. HTML syntax within Zig code, just like JSX but for Zig!

📝 Performant plain text editor for iOS with syntax highlighting, line numbers, invisible characters and much more.

HTML template formatter and linter for Django, Jinja, Twig, Nunjucks, Handlebars, Mustache, Liquid, Go templates, Angular, Tera, Askama and Mako. Formats markup and template syntax together, and lints for accessibility, correctness and style. CLI, pre-commit hook and VS Code extension.

Lightweight, robust, elegant syntax highlighting.

JavaScript syntax highlighter with language auto-detection and zero dependencies.

MCP server for reusable prompt templates, multi-step workflow chains, and quality gates. Compose agentic workflows with an operator syntax; export as native skills to Claude Code, Cursor, OpenCode, and Gemini CLI.

Obsidian plugin to sync flashcards from a folder in your vault to Anki. Pure Markdown syntax. No fuss.

Ansible IDE extension: auto-completion and integrating quality assurance tools like ansible-lint, ansible syntax check, yamllint, molecule and ansible-test.

FlexLayout adds a nice Swift interface to the highly optimized facebook/yoga flexbox implementation. Concise, intuitive & chainable syntax.

Syntax highlighting Engine for Structured Text and Code.

Java 1-25 Parser and Abstract Syntax Tree for Java with advanced analysis functionalities.

Texy is a lightweight markup language with plain text formatting syntax engine.

A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS, POP3, POP3S, RTSP, SCP, SFTP, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features

Redland Raptor RDF syntax library

Static site generator that supports Markdown and reST syntax. Powered by Python.

Tools to ease the creation of snippets, syntax definitions, etc. for Sublime Text.

Continuous syntax checking for Emacs. Fork to add max parallel invocations and other bug fixes.

Lightweight Lua-based IDE for Lua with code completion, syntax highlighting, live coding, remote debugger, and code analyzer; supports Lua 5.1, 5.2, 5.3, 5.4, LuaJIT and other Lua interpreters on Windows, macOS, and Linux

FsUnit makes unit-testing with F# more enjoyable. It adds a special syntax to your favorite .NET testing framework.

Powerful Markdown package for Sublime Text with better syntax understanding and good color schemes.

RSpec::Parameterized supports simple parameterized test syntax in rspec.

Laravel is a web application framework with expressive, elegant syntax.

RR is a test double framework that features a rich selection of double techniques and a terse syntax. ⛺

Rust implementation of CSS Syntax Level 3

Extension exposing PHP 7 abstract syntax tree

Open-source, cross platform Qt6 based IDE for reverse-engineering Android application packages. It features a friendly IDE-like layout including code editor with syntax highlighting support for *.smali code files.