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Protobuf RPC library for browser and gRPC-compatible APIs
1048 tools in our directory are listed as open source, from 30 sections: Frameworks (89), Open Source (82), UI & Components (80), Dev Utilities (55) and 26 more sections.

Protobuf RPC library for browser and gRPC-compatible APIs

Current, version-specific library docs for coding agents

Open-source AI code assistant, acquired by Cursor

Specification for writing commit messages that tools can read

Lightweight vanilla JavaScript cookie consent plugin for websites

Self-hosted platform to deploy apps and services on your server

eBPF observability that finds root causes without code changes

Measures which Python code runs during your tests

Open source framework for building teams of collaborating AI agents

Open source framework to build platform APIs on top of Kubernetes

Open source security engine with shared IP blocklists and threat intel

Open source encryption for files stored in cloud drives

End-to-end encrypted office suite for docs, sheets and boards

Visual tool for building CSS grid layouts and copying the code

Write automated acceptance tests in plain language


Open source tool for labeling images, video, 3D and audio data

Browser tool for encoding, encryption, compression and data analysis

Browser testing tool for end-to-end and component tests

Text-based diagram language that turns simple code into diagrams

JavaScript library for custom, data-driven charts and visualizations

Portable CI/CD pipelines written as code that run anywhere

Platform for building, scheduling and monitoring data pipelines

Tailwind CSS plugin with semantic class names for common components

Open source raw photo workflow and developer for photographers


Visual editor for SQLite and SQLCipher database files

Free open source desktop client for SQL and NoSQL databases

Open-source database client for SQL and NoSQL, desktop or web

Lightweight command line tool for database migrations

Docker-based local PHP and Node.js dev environments for teams

Open source change data capture for streaming database changes

Open source Git-based content editor for static sites.


PHP deployment tool for zero-downtime releases and fast rollbacks


Developer community for sharing posts, discussion and career tips

Open standard for containerized development environments



Open source dev environments defined by devcontainer.json

Offline desktop toolkit with 30 tools for everyday developer tasks

Open source distributed graph database for real-time workloads

Python library that draws cloud architecture diagrams as code

Open source avatar library and API with 61 styles

Structural diff tool that compares code by syntax, not lines

Free online Markdown editor with live preview and cloud save
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