:hedgehog: PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error tracking, logs, and more – capture all the context agents need to diagnose problems, uncover opportunities, and ship fixes. Steer it all from Slack, web, desktop, or the MCP.
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Backstage is an open framework for building developer portals
- infrastructure
- dx
- developer-experience
- developer-portal
A scalable, distributed, collaborative, document-graph database, for the realtime web
- database
- distributed
- distributed-database
- document-database
📦 Repomix is a powerful tool that packs your entire repository into a single, AI-friendly file. Perfect for when you need to feed your codebase to Large Language Models (LLMs) or other AI tools like Claude, ChatGPT, DeepSeek, Perplexity, Gemini, Gemma, Llama, Grok, and more.
The first open-source harness builder for AI coding. Make AI coding deterministic and repeatable.
The industry-leading GraphQL client for TypeScript, JavaScript, React, Vue, Angular, and more. Apollo Client delivers powerful caching, intuitive APIs, and comprehensive developer tools to accelerate your app development.
- graphql
- graphql-client
- typescript
- apollo-client
Debugbar for Laravel (Integrates PHP Debug Bar)
- laravel
- debugbar
- developer-tool
- profiler
Effortlessly compose, extend, and observe every service in real-time for the first time ever.
SubQuery is an Open, Flexible, Fast and Universal data indexing framework for web3. Our mission is to help developers create the decentralised products of the future.
A curated list of free public APIs — searchable, community-maintained, with a free JSON API.
- public-api
- api
- apis
- api-list
Amplication brings order to the chaos of large-scale software development by creating Golden Paths for developers - streamlined workflows that drive consistency, enable high-quality code practices, simplify onboarding, and accelerate standardized delivery across teams.
The Simple, Secure Framework Developers Trust
A developer-friendly API for converting many document formats into PDF files, and more!
Offline documentation browser. Your personal reference library, searchable in an instant.
- documentation
- docset
- zeal
- docs
The open-source reactive database for app developers
Redpanda is a streaming data platform for developers. Kafka API compatible. 10x faster. No ZooKeeper. No JVM!
- kafka
- cpp
- kubernetes
- go
The modern API client that lives in your terminal.
Low-code platform allows you to build business apps, enables you to quickly create internal tools such as dashboard, crud app, admin panel, crm, cms, etc. Supports PostgreSQL, MySQL, Supabase, GraphQL, MongoDB, MSSQL, Rest API, Hugging Face, Redis, etc. Automate workflows with schedule or webhook. Open source Retool.
- internal-tool
- internal-tools
- gui
- typescript
Connect APIs, remarkably fast. Free for developers.
- eventsourcing
- event-sourcing
- automation
- workflow
Agentic AI Framework for Java Developers
- artificial-intelligence
- java
- spring-ai
- agentic
🤖 CDN assets - The #1 free and open source CDN built to make life easier for developers.
- cdn
- javascript
- css
- library
The easy-to-use and developer-friendly enterprise CMS powered by Django
Activiti is a light-weight workflow and Business Process Management (BPM) Platform targeted at business people, developers and system admins. Its core is a super-fast and rock-solid BPMN 2 process engine for Java. It's open-source and distributed under the Apache license. Activiti runs in any Java application, on a server, on a cluster or in the cloud. It integrates perfectly with Spring, it is extremely lightweight and based on simple concepts.
The no-magic web API and microservices framework for Python developers, with a focus on reliability and performance at scale.
- python
- rest
- microservices
- web