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Top 23 Development Open-Source Projects
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Public APIs Directory
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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system-design-primer
Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.
Project mention: 2026: The average developer's year disappears and the most will struggle | dev.to | 2025-11-27One of the best free resources for real engineering fundamentals. https://github.com/donnemartin/system-design-primer
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n8n
Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.
I just looked through their webpage and github and I'm not sure. But maybe someone should make a feature request!
https://github.com/n8n-io/n8n
- Project mention: Ask HN: How can I get better at using AI for programming? | news.ycombinator.com | 2025-12-13
Try specification-driven-development with something like [speckit](https://github.com/github/spec-kit). It helps tremendously for facilitating a process that directs the coding agent to ask questions about your requirements, do research on your code base, make implementation plans, break plans down into tasks, implement those tasks systematically, and validate that the result matches your requirements with testing. Much better than having a coding agent just go straight to coding.
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httpie
🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era. JSON support, colors, sessions, downloads, plugins & more. (by httpie)
公式サイト / GitHub：https://httpie.io
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interactive-coding-challenges
120+ interactive Python coding interview challenges (algorithms and data structures). Includes Anki flashcards.
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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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Sounds similar to my personal history of adopting StandardJS (https://github.com/standard/standard) as soon as it appeared, doing the same at the org I was at the time. Based on memory, seems StandardJS appeared before prettier in the ecosystem?
Still to this day I just use standard when starting a new project, not even sure what the difference against prettier is, it's more or less the same as far as I can tell but maybe faster?
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JHipster
JHipster, much like Spring initializr, is a generator to create a boilerplate backend application, but also with an integrated front end implementation in React, Vue or Angular. In their own words, it "Is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures."
My first contribution to the jhipster-generator was on 07/2021: https://github.com/jhipster/generator-jhipster/pull/15724. After blogging for a while, I decided to contribute to the JHipster Lite project and wrote about the experience here: https://renanfranca.github.io/how-did-i-earn-money-to-fix-an-issue-from-an-open-source-software.html. Then, I made 10 contributions to the JHipster Lite project (https://github.com/jhipster/jhipster-lite/pulls?q=is%3Apr+author%3A%40me+is%3Aclosed).
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devpod
Codespaces but open-source, client-only and unopinionated: Works with any IDE and lets you use any cloud, kubernetes or just localhost docker.
Project mention: Les Cloud Development Environments (CDE) - Embarquement immédiat ! | dev.to | 2025-11-06 -
domain-driven-hexagon
Learn Domain-Driven Design, software architecture, design patterns, best practices. Code examples included
Project mention: Hexagonal vs Clean vs Onion: which one actually survives your app in 2026? | dev.to | 2025-09-23Hexagonal Architecture example repo
- Project mention: Are you really wasting your time in Java without these 10 libraries? | dev.to | 2025-11-20
-- Project Lombok
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distrobox
Use any linux distribution inside your terminal. Enable both backward and forward compatibility with software and freedom to use whatever distribution you’re more comfortable with. Mirror available at: https://gitlab.com/89luca89/distrobox
Project mention: ElementaryOS The thoughtful, capable and ethical replacement for Windows/macOS | news.ycombinator.com | 2025-10-11Your "pet" containers basically become your traditional OS, in a way. They use filesystem layering, so your container can see all of the files on your system, plus it's own layered files, ie. each container has it's own "view" of the filesystem.
You can install anything inside your "pet" containers that you would normally install on your actual system. The container keeps everything tidy and self-contained. I have a container for development, another for music/DAW, another for certain games that needed weird deps.
Fedora Kinoite/Silverblue come with `Toolbx`[1] preinstalled, but I found `distrobox`[2] to be more flexible for my needs. I layered distrobox onto my base image, and it just works.
[1] https://docs.fedoraproject.org/en-US/fedora-silverblue/toolb...
[2] https://distrobox.it/
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hadolint Description: Dockerfile linter, validate inline bash, written in Haskell. What we like: Well-maintained over the long term, active development, works very well. A true 12-factor application - can even be configured via environment vars! What we don't like: No JSON output. Extras: Lint Dockerfiles online
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RD-Agent
Research and development (R&D) is crucial for the enhancement of industrial productivity, especially in the AI era, where the core aspects of R&D are mainly focused on data and models. We are committed to automating these high-value generic R&D processes through R&D-Agent, which lets AI drive data-driven AI. 🔗https://aka.ms/RD-Agent-Tech-Report
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[Refactor]: improve performance for detecting function components
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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
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low-level-design-primer
Dedicated Resources for the Low-Level System Design. Learn how to design and implement large-scale systems. Prep for the system design interview.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).
Development discussion
Development related posts
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A Practical Guide to Building Your First Automation Workflow
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My Engineering Workflow in CursorAI
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SpecMem: How Kiroween in San Francisco Sparked the First Unified Agent Experience and Pragmatic Memory for Coding Agents
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Breaking the doom-prompting loop with spec-driven development
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Go-Agent
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How I Orchestrate Agentic Workflows With GitHub Spec-Kit and Google Antigravity
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From User Stories to Machine-Ready Specs: Why Your Requirements Process is Breaking Down in the Age of AI
- A note from our sponsor - SaaSHub www.saashub.com | 20 Dec 2025
Index
What are some of the best open-source Development projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | public-apis | 386,541 |
| 2 | system-design-primer | 329,390 |
| 3 | n8n | 163,657 |
| 4 | spec-kit | 56,290 |
| 5 | ShellCheck | 38,681 |
| 6 | httpie | 37,170 |
| 7 | interactive-coding-challenges | 30,907 |
| 8 | Standard | 29,402 |
| 9 | android_guides | 28,375 |
| 10 | JHipster | 22,286 |
| 11 | system-design-academy | 19,965 |
| 12 | xterm.js | 19,522 |
| 13 | devpod | 14,402 |
| 14 | domain-driven-hexagon | 14,151 |
| 15 | Lombok | 13,348 |
| 16 | distrobox | 11,795 |
| 17 | hadolint | 11,785 |
| 18 | Auto | 10,535 |
| 19 | E2B | 10,169 |
| 20 | RD-Agent | 9,845 |
| 21 | eslint-plugin-react | 9,236 |
| 22 | HTTP Prompt | 9,080 |
| 23 | low-level-design-primer | 7,287 |
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