Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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xml-formatter
Pretty-print and minify XML strings in JavaScript/TypeScript, respecting xml:space
tree-sitter-kotlin-ng
Fast, incremental Kotlin grammar for the Tree-sitter parsing framework.
esprima
A high-performance, standard-compliant ECMAScript parser producing ESTree-compatible ASTs for JavaScript tooling.
PdfParser
Standalone PHP library to extract text, metadata, and data from PDF files with no external tools.
lol-html
A low-latency streaming HTML parser and rewriter for Rust with a CSS-selector-based API.
fast-csv
Streaming CSV parser and formatter for Node.js with zero runtime dependencies and full TypeScript support.
Clipanion
A type-safe, dependency-free CLI framework for building nested, typed command-line applications in TypeScript.
ngx-markdown
Angular library for parsing and rendering Markdown as sanitized HTML, with optional syntax highlighting, math, diagrams, emoji, and copy-to-clipboard support.
plist.js
Parses and builds Apple property lists in XML, binary, and OpenStep formats for Node.js and browsers.
PHP User Agent Parser
Lightning-fast, minimalist PHP parser that turns User-Agent strings into browser and platform.
PostalMime
Zero-dependency email (RFC822/MIME) parser for Node.js, browsers, and serverless
tree-sitter-language-pack
Precompiled tree-sitter parsers and queries for 306+ languages in one install
pylatexenc
A dependency-free Python library that parses LaTeX markup and converts between LaTeX code and Unicode text.
tl
Fast, zero-copy HTML parser for Rust with a query-selector API
exif-rs
A pure-Rust library that parses Exif metadata directly out of JPEG, TIFF, PNG, WebP, and HEIF/HEIC image files.
json5
A Rust JSON5 parser and serializer built directly on the Serde framework.
sqllogictest
A Rust parser and runner for sqllogictest files that verify SQL database correctness
tree-sitter-html
Fast, incremental HTML grammar for the Tree-sitter parsing framework.
robots-parser
A spec-compliant robots.txt parser for Node.js with wildcard and RFC 9309 support.
tree-sitter-css
Fast, incremental CSS grammar for the Tree-sitter parsing framework.
tree-sitter-julia
Fast, incremental Julia grammar for the Tree-sitter parsing framework.
tree-sitter-lua
A tree-sitter grammar that turns Lua 5.x and LuaJIT source into fast, incremental, error-tolerant syntax trees.
range-parser
Tiny, fast Node.js parser for the HTTP Range request header.
rust-plist
A Rust library for reading and writing Apple property list (plist) files in XML, binary, and ASCII formats, with full Serde support.
