Postman
Key Features
- Multi-Protocol Support: Work seamlessly with REST, GraphQL, gRPC, WebSockets, Server-Sent Events (SSE), and any HTTP-compatible protocol.
- Native OpenAPI Editor: Design and preview OpenAPI specs directly within the app.
- Integrated Testing: Create and run test suites with the built-in collection runner and assertion support.
- Mock Servers: Mock endpoints using cloud or self-hosted servers to simulate real API behavior.
- Insomnia CLI: Automate linting and testing in CI/CD pipelines with the native command-line tool.
- Collaboration Tools: Share collections and specs across teams with built-in collaboration features.
- Flexible Storage Options:
- Local Vault: Keep everything stored locally for full control.
- Git Sync: Use any third-party Git repository without relying on cloud storage.
- Cloud Sync: Collaborate in the cloud with optional end-to-end encryption (E2EE).
- Plugin Support: Extend functionality with a rich ecosystem of third-party plugins.
Insomnia: The API Client for Builders Who Never Sleep
Insomnia is more than just an API client—it's a platform built for developers who work across protocols, formats, and workflows. As an open-source, cross-platform tool, Insomnia supports GraphQL, REST, WebSockets, Server-Sent Events (SSE), gRPC, and virtually any HTTP-compatible protocol.
It doesn’t stop at sending requests. Insomnia is built for every stage of the API lifecycle, whether you’re designing a new service or maintaining a legacy one. It offers a clean, modern interface to debug APIs with ease, letting you inspect responses, manage environments, and work with complex payloads without friction.
Design and Test Without Leaving Your Editor
If you're working with OpenAPI, Insomnia offers a native editor with live previews, allowing you to define, visualize, and refine your API specs all in one place. Once your API is defined, you can create test suites directly within the app—no extra tools needed. The built-in collection runner and testing features help catch issues early and often.
For those working in teams or building CI/CD pipelines, Insomnia includes a native CLI to automate testing and linting as part of your deployment workflow. This ensures your APIs stay reliable at every stage of development and delivery.
Mocking and Collaboration
Need to simulate an endpoint before it's built? Insomnia makes mocking simple. Use either a cloud-hosted mock server or your own infrastructure to create mocks for faster front-end and integration work. Collaboration is also a first-class citizen in Insomnia. Whether you're a solo dev syncing across machines or part of a larger team, you’ll find flexible options for sharing and syncing your work.
Storage That Works the Way You Do
Insomnia gives you full control over how your data is stored. Want everything local? Use Local Vault for complete offline control. Prefer Git for versioning? Sync your work with any Git provider without sending data to the cloud. Or, if collaboration in the cloud is your priority, take advantage of end-to-end encrypted (E2EE) Cloud Sync for secure team workflows.
Built for Builders
Insomnia is designed for developers who need more than just an API client. It's a workspace for debugging, designing, testing, and collaborating. It supports third-party plugins to extend functionality, and its open-source core means it’s always evolving with the community.
Whether you’re building a new service or testing an integration, Insomnia helps you move faster and work smarter—without compromising control or transparency.
