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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jsoniter
A high-performance, 100% compatible drop-in replacement for Go's encoding/json.
structlog
Structured, typed logging for Python built on plain functions and dictionaries instead of a bespoke logging DSL.
@apidevtools/swagger-parser
Parses, validates, and dereferences Swagger 2.0 and OpenAPI 3.x specs in Node.js and browsers
@xmldom/xmldom
A pure JavaScript, W3C-standard DOMParser and XMLSerializer for parsing and building XML/HTML documents
prometheus-client
The official Python instrumentation library for exposing Prometheus metrics
colord
A tiny, dependency-free TypeScript library for parsing, converting, and manipulating colors in any format.
node-sql-parser
Parses SQL statements into an AST and converts them back to SQL across a dozen database dialects.
sniffio
A tiny Python library that detects which async framework (trio, asyncio, or curio) your code is currently running under.
PyMuPDF
A high-performance Python library for extracting, rendering, converting, and manipulating PDF and other document formats.
APScheduler
Python task scheduler with cron, interval, and one-off triggers, backed by pluggable persistent datastores for distributed job scheduling.
opencv-python
Pre-built, pip-installable OpenCV bindings that give Python programs full computer vision and image-processing capabilities without compiling from source.
tree-sitter-typescript
TypeScript and TSX grammars for the tree-sitter incremental parsing framework.
PEFT
Hugging Face's library of state-of-the-art parameter-efficient fine-tuning methods for large models.
PyO3
Rust bindings for the Python interpreter, for writing native extensions or embedding Python in Rust.
bowser
A small, fast browser, platform, and rendering-engine detector for browser and Node environments
pyparsing
Build recursive-descent parsers in Python without a separate grammar file
micromark
The smallest 100% CommonMark-compliant markdown parser, with GFM and MDX support
pluggy
The minimalist, production-ready plugin and hook system that powers pytest, tox, and devpi
bytes
Tiny utility for parsing and formatting byte strings like '1kb'
torchaudio
GPU-accelerated audio processing library built on PyTorch, with differentiable transforms, Kaldi-compatible features, and pretrained speech models.
backoff
Python function decorators that retry calls on exceptions or bad return values, with exponential, fibonacci, or constant backoff and jitter.
tree-sitter-python
A fast, incremental Python grammar for the tree-sitter parsing library
distro
Linux distribution detection library and CLI, replacing Python's removed platform.linux_distribution()
Partial JSON
Parses incomplete JSON strings streamed token-by-token from an LLM into usable JavaScript values as they arrive.
