Bruno
Fast, Git-friendly, open-source API client for the next generation of developers
About Bruno
Bruno is a revolutionary open-source API client that takes a fundamentally different approach to API testing and development. Unlike traditional API clients that store collections in the cloud, Bruno stores your API collections directly in your filesystem using plain text markup language (Bru). This Git-friendly approach allows developers to use version control systems to collaborate on API collections, making it ideal for teams that value transparency, privacy, and offline-first workflows.
Developed as a modern alternative to existing API clients, Bruno emphasizes speed, simplicity, and developer autonomy. The tool is completely open-source and works offline by default, giving developers full control over their API testing environment without requiring cloud synchronization or account creation. Bruno supports all major API protocols including REST, GraphQL, and gRPC, while maintaining a clean, intuitive interface that makes API testing efficient and enjoyable.
✨ Key Features
- ✓ Git-friendly plain text storage (Bru markup)
- ✓ Offline-first architecture
- ✓ REST API testing and development
- ✓ GraphQL query support
- ✓ gRPC service testing
- ✓ Environment and variable management
- ✓ Collection organization and folders
- ✓ Request chaining and workflows
- ✓ Scripting support for automation
- ✓ Code generation in multiple languages
- ✓ Import from Postman, Insomnia, OpenAPI
- ✓ CLI for CI/CD integration
- ✓ Cross-platform (Windows, Mac, Linux)
- ✓ No account required
- ✓ Local-only data storage
⚖️ Pros & Cons
👍 Pros
- ✓ Completely free and open-source
- ✓ Git-friendly plain text storage
- ✓ Offline-first, no cloud dependency
- ✓ No account or login required
- ✓ Full data privacy and control
- ✓ Fast and lightweight
- ✓ Cross-platform support
- ✓ Import from Postman and Insomnia
- ✓ CLI for automation
- ✓ Active community development
- ✓ Modern, clean interface
- ✓ Regular updates and improvements
👎 Cons
- ✗ Newer project with smaller community
- ✗ Limited enterprise features
- ✗ No cloud synchronization option
- ✗ Fewer integrations than established tools
- ✗ Documentation still growing
- ✗ No built-in team collaboration features
- ✗ Requires Git knowledge for team use
- ✗ Less polished than commercial alternatives
💡 Use Cases
API testing with version control
Team collaboration via Git
Offline API development
Privacy-focused API testing
CI/CD integration for API testing
OpenAPI specification testing
GraphQL API development
gRPC service testing
Multi-environment API workflows
API documentation generation
🎯 Who Should Use This Tool
Developers who value privacy, offline capability, and Git-based workflows. Ideal for open-source projects, privacy-conscious teams, and developers seeking alternatives to cloud-based API clients.
💰 Pricing Information
Completely free and open-source. No subscription fees, no cloud storage costs, no limitations. Optional donation-based support for continued development.
📊 Performance Metrics
🔒 Security & Privacy
Local-only data storage, no cloud sync, no account required, open-source code for transparency, complete data ownership, Git-based version control for audit trails
🔄 Alternatives
Postman
Insomnia
Hoppscotch
Thunder Client
REST Client
⭐ User Reviews (0)
Login to ReviewNo reviews yet. Be the first to share your experience!
