Free
Stock & Placeholders · Image & Media
Thousands of free low-poly 3D models (CC0/CC-BY) with a searchable gallery and a Google-Drive-like library.
3dmodelslow-polyassets
Browse the complete directory — use filters to narrow down.
Stock & Placeholders · Image & Media
Thousands of free low-poly 3D models (CC0/CC-BY) with a searchable gallery and a Google-Drive-like library.
Containers · DevOps
Self-hosted GUI for managing Docker and Kubernetes environments.
Penetration Testing · Security
Free, in-depth web security training with interactive labs, maintained by the Burp Suite team.
Ecosystem · CSS Tools
Tool for transforming CSS with JavaScript plugins.
Mobile Backend & Services · Mobile Development
Open-source product analytics, feature flags and session replay.
Programming Languages
Official PowerShell documentation from Microsoft.
Hooks & Commits · Git & Version Control
Framework for managing and maintaining multi-language pre-commit hooks.
Pipelines & ETL · Data & Analytics
Python workflow orchestration that feels like writing scripts — dynamic DAGs, retries, scheduling and a rich UI.
Ecosystem · CSS Tools
Open-source Tailwind component collection with rich interactive JS widgets and an extensive Figma kit.
Build & Lint · Frontend
Opinionated code formatter supporting many languages.
UI Libraries · Frontend
The Angular edition of the Prime suite: 90+ components with a standout data table.
Design Systems · Design & Prototyping
GitHub's design system with React components and tokens.
UI Libraries · Frontend
The React edition of the Prime suite: 90+ components, theming presets and a powerful data table.
UI Libraries · Frontend
Rich Vue UI suite: 90+ components, themed presets and a massive data-table implementation.
ORMs · Backend
Type-safe ORM for TypeScript/Node with schema migrations and Studio.
Cheatsheets & Learning · Git & Version Control
The official, free Pro Git book covering Git in depth.
Courses & Tutorials · Documentation & Learning
Kelas online Eko Kurniawan — tutorial backend, Java, Go dan arsitektur berbahasa Indonesia dari dasar sampai mahir.
Practice & Challenges · Documentation & Learning
Mathematical and computational programming problems.
Logs & Metrics · Monitoring & Observability
The standard open-source metrics collection and alerting toolkit.
Agent & LLM Frameworks · AI for Developers
The most comprehensive open guide to prompting techniques.
Agent & LLM Frameworks · AI for Developers
Open-source tool for testing and evaluating LLM prompts and models.
Other Formats · Data Formats
Official Protocol Buffers documentation from Google.
References · Documentation & Learning
The largest curated directory of free public APIs — 1,400+ entries across 40 categories with auth requirements noted.
Infrastructure as Code · DevOps
Infrastructure as code in real programming languages.