The only API mocking solution that works with your existing backend instead of replacing it
Extend your existing backend without any changes
MockQL acts as a transparent proxy between your frontend and backend. It passes through all existing API calls unchanged while allowing you to extend or modify specific endpoints.
// Original API endpoint working as normal
fetch('https://mockql.com/api/proxy/project-id/api/users');
// New endpoint that doesn't exist in your backend yet
fetch('https://mockql.com/api/proxy/project-id/api/comments');
Feature | MockQL | Other Mocking Tools |
---|---|---|
GraphQL Support | Limited | |
REST API Support | ||
Request Interception | Partial | |
Edge Case Simulation | Limited |
See why developers choose MockQL over traditional mocking solutions
Separate mock servers that replace your real backend
Transparent proxy that enhances your existing backend
Writing and maintaining custom mock implementations
See how teams are using MockQL to accelerate development
Build UIs without waiting for backend APIs to be ready. Work independent of the backend team's timeline.
Simulate edge cases, errors, and response variations to ensure your application handles all scenarios gracefully.
Quickly test new API designs and get feedback before investing in full backend implementation.
Test GraphQL schema changes gradually without breaking existing clients or requiring full backend updates.
Verify your application's resilience by simulating various error responses, timeouts, and edge cases.
Share consistent API mocks across frontend, backend, and QA teams to ensure everyone works with the same expectations.
Join thousands of developers who are using MockQL to build better apps faster. Start for free today.