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Test API vs Zorvik
Offers testing, mocking and load-testing in a local, free tool
Test APISend HTTP Requests Instantly
ZorvikZorvik --> From HTTP to MCP: test, mock, load-test every API, free and local.Which to pick
Pick Test API if you want…
- Instant in-browser HTTP request testing
Pick Zorvik if you want…
- All-in-one offline API workbench
- Local-first API testing and load testing
- Open-source code (LibreGuild/zorvik on GitHub, Apache-2.0 license)
Side by side
- What it is
- Test API:Test API is a Chrome extension that lets you send HTTP requests and view responses directly in the browser.
- Zorvik:Zorvik is a free, open-source desktop app to build, test, mock and load-test APIs across many protocols locally.
- Best for
- Test API:Instant in-browser HTTP request testing
- Zorvik:All-in-one offline API workbench
- Who it’s for
- Test API:Developers who need quick, in-browser API testing without external tools
- Zorvik:Developers and QA engineers needing offline, multi-protocol API tooling
- Pricing
- Test API:Free
- Zorvik:Free
- Open source
- Test API:—
- Zorvik:Yes, 2 GitHub stars
- Works with
- Test API:—
- Zorvik:HTTP/1.1, HTTP/2, HTTP/3, GraphQL, gRPC, WebSocket, Socket.IO, Server-Sent Events
Test API features
- All HTTP methods. Supports GET, POST, PUT, PATCH, DELETE and other standard methods.
- Custom headers & params. Add custom headers, query parameters and request bodies.
- Real-time response view. Shows status code, headers and formatted response bodies instantly.
- Data formats support. Handles JSON, XML and form-data payloads.
- Authentication handling. Supports API keys, Bearer tokens, OAuth and basic auth.
- Local processing. All request data stays in the browser; no external transmission.
Zorvik features
- Multi-protocol support. Handles HTTP/1-3, GraphQL, gRPC, WebSocket, Socket.IO, SSE, MQTT, TCP, UDP and DNS in one app.
- Mock server & routes. Create mock endpoints with params, delays, faults, CORS and forwarding.
- Load testing. Run virtual-user or arrival-rate load tests with configurable thresholds.
- MCP testing for AI agents. Test and mock MCP servers that AI agents use, with schema validation.
- Plain-file workspaces. All requests and configs are stored as readable YAML files in Git-friendly folders.
- CLI for CI/CD. Command-line tools (zorvik run, load, serve, mcp) integrate with pipelines and generate JUnit reports.
- Network inspector tools. Built-in TLS inspector, DNS lookup, port check, ping and encoders for Base64, JWT, hashes.
- Built-in learning bootcamp. Interactive lessons and labs teach API concepts and testing within the app.
Test API vs Zorvik FAQ
Is Test API or Zorvik free?+
Yes, both are free.
Is Test API or Zorvik open source?+
Zorvik is open source (LibreGuild/zorvik on GitHub, Apache-2.0 license). DevHunt has no public source repository on record for Test API.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.