Designed for deep work
Bring realism to your local development environment with customizable endpoints, real-time monitoring, and a streamlined local server that mirrors production behavior.
Local server workspace
Launch a dedicated mock server per project with zero terminal setup and keep it focused on the scenario you are iterating on.
Real-time monitoring
Inspect incoming requests and responses instantly so you can troubleshoot payloads, headers, and status codes without leaving the app.
Custom responses
Design JSON or text bodies, set headers, and craft status codes to emulate the exact behavior your client expects.
Inspect what ships
Track every request as it hits your local server, replay payloads, and quickly iterate on endpoint definitions without restarting your workflow.
Craft responses, save reusable templates, and jump between scenarios without touching your production backend.
See Mocksy in action
Every view is tuned for clarity—from high-level endpoint overviews to granular response editors.
Inspect every request with live logs and response previews.
Drill into headers, payloads, and timings to match production behavior.
Shape responses with a focused JSON editor and instant validation.
Mocksy Pro (coming soon)
We are building Mocksy Pro for power users. Get early access updates and help shape advanced workflows tailored for larger teams.
Multiple servers
Run and manage several mock servers at once with isolated configs per feature branch.
Proxy mode
Forward requests to live services when needed and intercept or reshape responses on the fly.
Dynamic scripts & export
Add logic to responses and export/import endpoint libraries to share with your team.
FAQs
Does Mocksy replace my backend?
No. Mocksy augments your workflow so you can simulate services when real endpoints are unstable or unavailable.
Will my mocks sync across devices?
Mocksy stores configurations locally on your Mac today. Multi-device sync will be evaluated after Mocksy Pro launches.
Can I use Mocksy offline?
Absolutely. Mocksy keeps serving local responses even when you disconnect from the internet.