MockarIo Lets Developers Test Apps via Custom Subdomain Without a Live Backend

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MockarIo is a new SaaS platform built to help frontend and mobile developers work independently of backend teams by serving HTTP mock responses from a dedicated subdomain. Developers can register API endpoints, define multiple response variants such as success, validation errors, or timeouts, and switch between them instantly without requiring a backend deployment. Each team or organization gets its own subdomain on mockar.io, reducing conflicts that arise when multiple developers share a single mock environment. The platform was created by an Android developer who faced recurring API bottlenecks while working across large, multi-team projects. MockarIo is available now with a free tier, and the developer is actively seeking feedback on features like OpenAPI import and authentication support.

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