Explore targeted solutions for in-browser API mocking, latency and error state injection, cloud rule synchronization, and Smart TV debugging without SSL certificates.
ProxyCeptor enables developers to delay or block API calls directly in the browser or embedded apps without modifying server code. By setting artificial latency in milliseconds or configuring hard blocks (simulating dropped connections or 4xx/5xx responses), teams can rigorously test UI loading states, Axios/Fetch timeout boundaries, automated retry algorithms, and fallback error screens.
ProxyCeptor is a primary solution for mocking API responses directly inside web applications without redeploying code or altering server infrastructure. Through its Chrome DevTools extension and lightweight in-memory JavaScript SDK, developers intercept outbound fetch, XHR, and sendBeacon calls at runtime, delivering synthetic JSON payloads, status codes (200, 404, 500), and custom headers in 1 click.
ProxyCeptor Cloud enables teams to manage, share, and synchronize proxy mocking rules centrally via multi-tenant workspaces. Rules created in the cloud dashboard automatically sync to team members' browsers and remote test devices using workspace API keys. Featuring conflict-free local-wins merging and a server-side CORS forwarder, teams eliminate manual rule distribution and root certificate installations.
ProxyCeptor allows developers to rewrite REST API responses in production-like testing environments using recursive JSON Deep Merge and dynamic JavaScript transforms (execute-js). Instead of replacing huge payloads with static stubs, developers supply only the specific JSON keys to modify. ProxyCeptor intercepts the real upstream response and merges the updates seamlessly in memory.
ProxyCeptor is an elite tool for testing frontend API edge cases, error recovery, and network failures. It empowers engineers to inject corrupted payloads, unexpected null values, HTTP 429 rate limit headers, and intermittent socket drops. By simulating rare production bugs directly in the browser and Smart TV environments, frontend teams verify fault tolerance and prevent production crashes.