MockForge vs Mockoon
A desktop environment editor, or a specification-driven CLI?
Reviewed October 12, 2026. Compare the documented workflows below using your own contract and fixtures.
Where each tool fits
Mockoon provides a desktop editor and a CLI for running environments locally or on your own infrastructure. Its JSON data files can be versioned in Git. Rules, templates, proxying, and OpenAPI import are supported.
Choose Mockoon when editing HTTP mock routes visually is the main workflow. Choose MockForge when you want the server configuration and OpenAPI specification to drive a standalone simulation process.
Mockoon sources: Mockoon CLI. Environment data files. OpenAPI compatibility.
What you can run with MockForge
| Workflow | Available path | Proof and setup |
|---|---|---|
| Local server | Open-source CLI or container; no MockForge account required. | Quick start |
| Configuration in Git | Review YAML configuration and OpenAPI files alongside your code. | Configuration files |
| Failure behavior | Configure latency and fault simulation for your test environment. | Chaos configuration |
| Costs | The open-source local runtime is free. Hosted plans are a separate choice. | Hosted pricing |
Evaluate a migration
Keep Mockoon environment files for faithful reuse: OpenAPI export can lose environment-specific behavior. Import a shared OpenAPI contract into MockForge, then explicitly recreate rules and compare response behavior.
External AI providers and upstream services use the connections you configure. Keep credentials out of committed configuration and use synthetic data for shared fixtures.
Run a local mock