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Best Open Source development Libraries

A curated list of the most popular GitHub repositories tagged with development. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.

#1public-apis/public-apis

A collective list of free APIs

399,378Python
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#2donnemartin/system-design-primer

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

336,081Python
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#3n8n-io/n8n

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

175,654TypeScript
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#4github/spec-kit

💫 Toolkit to help you get started with Spec-Driven Development

70,967Python
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#5GitHubDaily/GitHubDaily

坚持分享 GitHub 上高质量、有趣实用的开源技术教程、开发者工具、编程网站、技术资讯。A list cool, interesting projects of GitHub.

45,244
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#6httpie/cli

🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era. JSON support, colors, sessions, downloads, plugins & more.

37,581Python
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#7donnemartin/interactive-coding-challenges

120+ interactive Python coding interview challenges (algorithms and data structures). Includes Anki flashcards.

31,185Python
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#8standard/standard

🌟 JavaScript Style Guide, with linter & automatic code fixer

29,430JavaScript
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#9codepath/android_guides

Extensive Open-Source Guides for Android Developers

28,377
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#10jbee37142/Interview_Question_for_Beginner

:boy: :girl: Technical-Interview guidelines written for those who started studying programming. I wish you all the best. :space_invader:

21,376
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#11systemdesign42/system-design-academy

If you want to become good at system design, join this newsletter now 👇

20,845
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#12xtermjs/xterm.js

A terminal for the web

19,957TypeScript
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#13dariubs/GoBooks

List of Golang books

19,172Go
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#14loft-sh/devpod

Codespaces but open-source, client-only and unopinionated: Works with any IDE and lets you use any cloud, kubernetes or just localhost docker.

14,702Go
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#15Sairyss/domain-driven-hexagon

Learn Domain-Driven Design, software architecture, design patterns, best practices. Code examples included

14,398TypeScript
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#16jsx-eslint/eslint-plugin-react

React-specific linting rules for ESLint

9,263JavaScript
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#17httpie/http-prompt

An interactive command-line HTTP and API testing client built on top of HTTPie featuring autocomplete, syntax highlighting, and more. https://twitter.com/httpie

9,107Python
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#18sj26/mailcatcher

Catches mail and serves it through a dream.

6,727Ruby
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