Best Package tools — Open source
Packages are modular pieces of software that add specific functionality to projects, saving time and effort. Whether enhancing user interfaces or managing complex tasks, packages simplify development and let indie hackers focus on building unique features.
100 in catalog
Best Open source Package tools
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Hugging Face Transformers
The library that made transfer learning a one-liner
#1 — 166,764 GitHub stars
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llama.cpp
LLM inference in pure C++
#2 — 128,326 GitHub stars
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shadcn/ui
Beautifully designed components you copy and paste
#3 — 123,866 GitHub stars
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Browser Use
The web automation library for agents
#4 — 114,720 GitHub stars
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Axios
Promise-based HTTP client
#5 — 109,208 GitHub stars
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Playwright
Fast and reliable end-to-end testing
#6 — 96,179 GitHub stars
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Puppeteer
A browser automation library
#7 — 95,581 GitHub stars
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vLLM
High-throughput LLM serving
#8 — 91,847 GitHub stars
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Storybook
Build, test and document UI components in isolation
#9 — 91,057 GitHub stars
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Vite
Next-generation frontend tooling
#10 — 82,840 GitHub stars
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Unsloth
The first desktop app to run and train AI models
#11 — 76,203 GitHub stars
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Mem0
The memory layer for AI agents
#12 — 65,344 GitHub stars
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Redux
A predictable state container for JavaScript apps
#13 — 61,486 GitHub stars
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Lodash
A modern JavaScript utility library
#14 — 61,279 GitHub stars
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Zustand
A small, fast and scalable state-management solution
#15 — 58,690 GitHub stars
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React Router
Everything you need for routing in React
#16 — 56,572 GitHub stars
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Requests
HTTP for humans
#17 — 54,303 GitHub stars
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Cypress
Test anything that runs in a browser
#18 — 51,018 GitHub stars
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TanStack Query
Powerful data synchronization for web applications
#19 — 50,302 GitHub stars
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pandas
Powerful Python data analysis toolkit
#20 — 49,733 GitHub stars
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Prisma
Next-generation TypeScript ORM
#21 — 47,608 GitHub stars
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React Bits
Open-source animated, interactive React components
#22 — 47,372 GitHub stars
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Leaflet
The leading open-source JavaScript library for mobile-friendly maps
#23 — 45,619 GitHub stars
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Jest
Delightful JavaScript testing
#24 — 45,456 GitHub stars
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React Hook Form
Performant, flexible and extensible forms
#25 — 44,854 GitHub stars
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Zod
TypeScript-first schema validation
#26 — 43,953 GitHub stars
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DuckDB
Analytics-grade SQLite
#27 — 41,275 GitHub stars
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styled-components
Visual primitives for the component age
#28 — 41,104 GitHub stars
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tRPC
End-to-end typesafe APIs
#29 — 40,610 GitHub stars
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date-fns
Modern JavaScript date utility library
#30 — 36,649 GitHub stars
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pnpm
Save time. Save disk space. Supercharge your monorepos.
#31 — 36,531 GitHub stars
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SGLang
Fast LLM serving for agents
#32 — 35,991 GitHub stars
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Drizzle ORM
SQL-like TypeScript ORM
#33 — 35,775 GitHub stars
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Selenium
A browser automation framework and ecosystem
#34 — 34,492 GitHub stars
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Motion
The motion library for React and JavaScript
#35 — 33,613 GitHub stars
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NumPy
The fundamental package for scientific computing with Python
#36 — 32,748 GitHub stars
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SWR
React Hooks for data fetching
#37 — 32,478 GitHub stars
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Filament
Accelerated Laravel development
#38 — 32,068 GitHub stars
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Turborepo
Monorepo builds, cached
#39 — 31,089 GitHub stars
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Cognee
Open source memory platform for agents
#40 — 30,704 GitHub stars
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XState
Actor-based state machines and statecharts
#41 — 30,115 GitHub stars
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Better Auth
The most comprehensive TypeScript auth framework
#42 — 29,958 GitHub stars
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PostCSS
A tool for transforming CSS with JavaScript
#43 — 28,973 GitHub stars
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Celery
Distributed task queue
#44 — 28,890 GitHub stars
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Pydantic
Data validation using Python type hints
#45 — 28,776 GitHub stars
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Semantic Kernel
An Open-Source SDK for AI Orchestration
#46 — 28,561 GitHub stars
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GSAP
Professional-grade animation for the modern web
#47 — 28,427 GitHub stars
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Auth.js
Auth without the boilerplate
#48 — 28,365 GitHub stars
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ESLint
Find and fix problems in your JavaScript code
#49 — 27,507 GitHub stars
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Vercel AI SDK
The AI Toolkit for TypeScript
#50 — 26,761 GitHub stars
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Biome
One toolchain for lint and format
#51 — 25,793 GitHub stars
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Lucide
Beautiful & consistent icons
#52 — 24,526 GitHub stars
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Stagehand
The AI browser automation SDK
#53 — 24,286 GitHub stars
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Yup
Dead simple object schema validation
#54 — 23,666 GitHub stars
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Livewire
A Full-Stack Framework for Laravel
#55 — 23,575 GitHub stars
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RxDB
The local-first database for JavaScript apps
#56 — 23,379 GitHub stars
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Skyvern
AI agents to automate workflows on any website
#57 — 23,007 GitHub stars
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Yjs
Shared-editing CRDTs
#58 — 22,797 GitHub stars
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Oxc
A collection of high-performance JavaScript tools written in Rust
#59 — 22,754 GitHub stars
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Jotai
Primitive and flexible state management for React
#60 — 21,267 GitHub stars
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GraphQL
A query language for your API
#61 — 20,342 GitHub stars
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Apollo Client
The industry-standard GraphQL client
#62 — 19,801 GitHub stars
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MDX
Markdown for the component era
#63 — 19,789 GitHub stars
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Radix UI
Components, icons, and colors for building high-quality, accessible design systems
#64 — 19,273 GitHub stars
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UnoCSS
The instant on-demand atomic CSS engine
#65 — 18,963 GitHub stars
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Vitest
Vite-native testing
#66 — 17,100 GitHub stars
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PGlite
Postgres in the browser
#67 — 16,031 GitHub stars
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Pipecat
Voice agent framework
#68 — 15,560 GitHub stars
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Sass
CSS with superpowers
#69 — 15,374 GitHub stars
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TanStack Router
Fully type-safe router for React
#70 — 15,083 GitHub stars
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Midscene.js
The GUI Agent for E2E testing
#71 — 14,907 GitHub stars
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pytest
A mature full-featured Python testing framework
#72 — 14,506 GitHub stars
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Kysely
Type-safe SQL query builder
#73 — 14,226 GitHub stars
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Rolldown
Blazing fast Rust-based bundler for JavaScript
#74 — 13,947 GitHub stars
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Instructor
Structured outputs for LLMs
#75 — 13,897 GitHub stars
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Sidekiq
Simple, efficient background processing for Ruby
#76 — 13,556 GitHub stars
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Rspack
Fast Rust-based bundler for the web
#77 — 12,900 GitHub stars
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SQLAlchemy
The database toolkit for Python
#78 — 12,159 GitHub stars
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Base UI
Unstyled, accessible React components
#79 — 10,908 GitHub stars
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SQLite
Small. Fast. Reliable. Choose any three.
#80 — 10,479 GitHub stars
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Lucia
Minimal auth abstractions
#81 — 10,448 GitHub stars
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ElectricSQL
Sync Postgres to the edge
#82 — 10,361 GitHub stars
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BullMQ
Background jobs that scale
#83 — 9,403 GitHub stars
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Valibot
The modular and type safe schema library
#84 — 9,004 GitHub stars
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i18next
Internationalization framework
#85 — 8,634 GitHub stars
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Inertia.js
The Modern Monolith
#86 — 8,115 GitHub stars
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Guardrails AI
Validated LLM outputs
#87 — 7,418 GitHub stars
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NeMo Guardrails
NVIDIA's guardrail toolkit
#88 — 7,130 GitHub stars
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Automerge
JSON CRDTs for collaboration
#89 — 6,608 GitHub stars
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LiveStore
Local-first event sourcing
#90 — 3,704 GitHub stars
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Sushi
Eloquent’s missing “array” driver
#91 — 3,006 GitHub stars
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Prism
Prism is a powerful Laravel package for integrating Large Language Models (LLMs) into your applications.
#92 — 2,423 GitHub stars
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Evolu
TypeScript library and local-first platform
#93 — 1,890 GitHub stars
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DBOS
Durable execution on Postgres
#94 — 1,357 GitHub stars
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Jazz
Local-first apps, minus the backend
#95
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Replicache
Sync engine for optimistic UIs
#96
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Testcontainers
Integration tests with real dependencies
#97
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Triplit
Full-stack sync database
#98
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Turbopack
Incremental bundler for JavaScript and TypeScript, written in Rust
#99
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Zero
Query-driven sync engine
#100
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Frequently asked questions
- What is the best open source Package for indie makers?
- Based on the IndieBoot catalog, Hugging Face Transformers, llama.cpp, shadcn/ui are strong starting points among the 100 curated open source Package listings.
- How many open source Package does the IndieBoot catalog include?
- IndieBoot currently lists 100 curated open source Package entries, each with official links and context.
- How are the best open source Package ranked?
- Listings are ranked by GitHub stars (highest first) and then alphabetically, so community-backed options surface at the top.