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Top 23 Development Open-Source Projects
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Project mention: A Survey of Public APIs for Building a Football Live Score Site in 2026 — Part 1: News API Review | dev.to | 2026-09-05
Candidate source: Every API considered comes from the public-apis repository on GitHub. I chose it because it has more than 400,000 GitHub stars and offers a broad, well-organized set of categories and API options.
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AppSignal
Monitoring that respects your time & budget. APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product.
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ImageHub
Use ImageHub free AI image tools to generate images, remove backgrounds and objects, upscale photos, restore old pictures, and try on outfits online.
Are there any quality system design resources out there like https://github.com/donnemartin/system-design-primer that cover AI Architectures instead - RAG, intelligent document processing, agent pattern etc.
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n8n
n8n is a workflow automation platform for building AI-powered workflows and agents, connecting any AI model to any business system with full control over data, security, and deployment. Build visually or in code while n8n handles infrastructure from prototype to production with fully auditable executions.
Project mention: Self-hosted n8n for business: VPS cost, security, backups and GDPR | dev.to | 2026-10-02n8n — source code and licence
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GitHub's spec-kit has been gaining serious traction — 46.7k stars and counting — and for good reason. It brings a solid methodology for using spec-driven development with the AI coding tool of your choice.
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Whilst I agree that Bash makes it far too easy to do it wrong, it's not too tricky to write scripts that don't have those issues.
Possibly the most important tip is to use ShellCheck (https://www.shellcheck.net/) as a linter on your scripts and work through the various warnings to eliminate them. For the rare times that ShellCheck is overly cautious, you can remove a specific warning with a comment before the offending line such as
# shellcheck disable=SC1091 -
httpie
🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era. JSON support, colors, sessions, downloads, plugins & more. (by httpie)
There is already a popular project called httpie, so httpy would be really confusing in non written form. Beside that, i completely agree, the name could be better.
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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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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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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system-design-academy
If you want to become good at AI engineering & system design, join this newsletter 👇
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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."
Even worse, 95 (60%) of those pull requests were merged into the main branch, 50 of them by a bot user, without any user interaction. This led to the malicious package being pushed to production code in less than an hour, as showcased by the jhipster/generator-jhipster repository.
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Project mention: Extending the Horizon Dashboard: Adding a UI to a Compiled Vue Bundle | dev.to | 2026-09-13
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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
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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
# 克隆仓库 git clone https://github.com/microsoft/RD-Agent.git cd RD-Agent # 创建开发环境 conda create -n rdagent-dev python=3.10 conda activate rdagent-dev # 安装开发依赖 make dev # 或者手动安装 pip install -e . pip install -r requirements/dev.txt
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Project mention: My code checker was wrong. How I turned its false positives into tests | dev.to | 2026-09-22
rebar told e2b (commit ccaf9fc):
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Here we are using Lombok's @Data and @Builder annotations to auto-generate boilerplate code, saving keystrokes and valuable developer time.
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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: Distrobox – Containers create compatibility across different Linux distros | news.ycombinator.com | 2026-08-24 -
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If the manual META-INF/services entry bothers you, Google's AutoService generates it from an annotation. And when you actually need isolated class loaders, lifecycle callbacks, or hot reload, a heavier framework like PF4J or OSGi Declarative Services is the right call. This pattern stops short of all that on purpose: standard JDK, no dependencies, and selection plus configuration without a container.
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Project mention: More Agent Autonomy Needs Stronger Guardrails: React 19 Linting on ESLint 10 | dev.to | 2026-08-22
The upstream compatibility issue was opened on February 7, 2026. As of August 23, it is still open more than six months later. The pull request, opened on July 30, is also still open.
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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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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
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Reclazz alternatives - HotswapAgent and DCEVM
3 projects | 17 Sep 2026 -
Extending the Horizon Dashboard: Adding a UI to a Compiled Vue Bundle
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A note from our sponsor - AppSignal
www.appsignal.com | 5 Oct 2026
Index
What are some of the best open-source Development projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | public-apis | 485,863 |
| 2 | ImageHub | 372,814 |
| 3 | n8n | 206,604 |
| 4 | spec-kit | 139,918 |
| 5 | ShellCheck | 40,131 |
| 6 | httpie | 38,500 |
| 7 | interactive-coding-challenges | 31,677 |
| 8 | Standard | 29,429 |
| 9 | system-design-academy | 29,259 |
| 10 | android_guides | 28,345 |
| 11 | JHipster | 22,459 |
| 12 | xterm.js | 21,251 |
| 13 | GoBooks | 19,704 |
| 14 | devpod | 15,251 |
| 15 | domain-driven-hexagon | 14,910 |
| 16 | RD-Agent | 14,832 |
| 17 | E2B | 14,120 |
| 18 | Lombok | 13,480 |
| 19 | distrobox | 13,031 |
| 20 | hadolint | 12,451 |
| 21 | Auto | 10,563 |
| 22 | eslint-plugin-react | 9,291 |
| 23 | HTTP Prompt | 9,107 |
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