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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later
Composable library for defining recurring schedules and calculating their next or previous occurrences.
tree-sitter-hcl
An incremental Tree-sitter grammar for HCL, the configuration language behind Terraform.
Partial JSON Parser
A zero-dependency Python library that completes and parses incomplete JSON streamed token-by-token from LLMs.
OpenAPI Pydantic
Type-safe OpenAPI 3.0 and 3.1 schema models for Python, built on Pydantic 1.8+ and 2.x for validated construction and parsing.
tree-sitter-verilog
SystemVerilog and Verilog grammar for the tree-sitter incremental parser.
ansi-to-tui
Convert ANSI SGR escape codes in raw bytes into styled Ratatui Text, ready to render in your TUI.
wreq-util
Browser and OkHttp client emulation, TLS certificate compression, and delay middleware for the wreq HTTP client.
whatthepatch
A pure-Python library for parsing and applying unified, context, ed, and SCM-style patch/diff files.
tree-sitter-fortran
Fast, incremental Fortran grammar for the Tree-sitter parsing framework.
csv-async
Async CSV reading and writing for Rust that mirrors the sync csv crate's API for tokio and async-std runtimes.
uaparser
Pure-Rust user-agent parser built on the shared uap-core regex definitions.
mdit-py-plugins
A collection of core syntax plugins for the markdown-it-py parser
tree-sitter-zig
A fast, incremental Zig grammar for tree-sitter that powers syntax highlighting, code folding, and structural code queries in editors and dev tools.
simple-xml-to-json
A tiny, dependency-free library that transpiles XML into JSON through an AST.
smtp-proto
A fast, zero-copy SMTP/LMTP protocol parser for Rust covering every registered service extension.
Texting Robots
A Rust-native robots.txt parser, battle-tested against tens of millions of real-world sites.
@acemir/cssom
A pure-JavaScript CSS parser and CSS Object Model implementation.
git-url-parse
A Rust parser for the URLs used by git, extracting components and host provider details.
tree-sitter-svelte-ng
An incremental Tree-sitter grammar for Svelte component syntax.
accept-language
A tiny, dependency-free Rust library for parsing the HTTP Accept-Language header.
tinyhtml5
A tiny, WHATWG-spec HTML5 parser that turns malformed real-world HTML into a clean Python ElementTree.
expr-eval-fork
A security-patched fork of expr-eval for safely parsing and evaluating math expressions in JavaScript without native eval().
url-parse
A Rust library that breaks URLs into scheme, credentials, domain, port, path, query, and anchor, with support for custom schemes.
regexpp
A dependency-free, spec-accurate ECMAScript regular expression parser and validator with a full AST, powering ESLint's regex-aware rules.
