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>log in to commentWe built ProxyCeptor to cut the days‑long hassle of installing SSL certificates and waiting on backend mocks, giving teams a way to intercept, rewrite, and mock network traffic in real time for TVs and web apps. It lets you modify URLs, inject JSON, delay responses, and capture session replays without changing the app code. I’d love your feedback , try the URL Modify feature and let me know what breaks.
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ProxyCeptor intercepts and modifies API traffic for web and Smart TV apps without needing SSL certificates.
- for
- QA engineers, frontend developers, and engineering managers testing APIs and OTT streams.
- pricing
- freemium
- license
- open source
Key features
- Request & URL Modify — Rewrite URLs, change payloads, and inject JSON fields on the fly.
- Response Mocking — Replace, append or deep-merge response bodies and status codes.
- Network Performance Controls — Add latency, block requests or flip HTTP codes to simulate conditions.
- Header Manipulation — Inject, modify or remove request/response headers including CORS and cache settings.
- Session Replay — Export HTML replays with network logs, clicks and console errors for bug tickets.
- Team Rule Sync — Cloud dashboard syncs rule profiles instantly across all testers and developers.
Use cases
- Redirect HLS streams on Smart TVs to a staging CDN without rebuilding the app.
- Simulate payment gateway timeouts or 500 errors to test checkout error handling.
- Mock KYC upload failures or OTP retries to verify fallback UI flows.
ProxyCeptor vs alternatives
 ProxyCeptor |  Postman |  Cypress |  Gitea | ||
|---|---|---|---|---|---|
| Best for | In-memory API interception for TV and web apps | API design & testing platform | Browser E2E testing | Cross-browser automation | Git hosting |
| Pricing | Freemium | Subscription | Free | Free | Free |
| DevHunt upvotes | 1 | 0 | 0 | 0 | 0 |
| Launched | May 2031 | — | — | — | — |
- ProxyCeptor vs Postman: Postman focuses on API design and testing, not in-app traffic interception for TV devices.
- ProxyCeptor vs Cypress: Cypress provides browser end-to-end testing but does not rewrite network traffic in-memory for Smart TVs.
- ProxyCeptor vs Playwright: Playwright offers cross-browser automation, lacking the zero-cert TV interception and real-time rule sync.
- ProxyCeptor vs Gitea: Gitea is a self-hosted Git service, unrelated to API traffic manipulation.
ProxyCeptor FAQ
Do I need to install SSL certificates on test devices?+
No. ProxyCeptor works inside JavaScript (fetch, XHR, sendBeacon) or Chrome's declarativeNetRequest API, avoiding system-level certificates.
Is any API data uploaded to the cloud?+
Only rule definitions are stored; intercepted requests and responses stay local on the device.
Can non-technical QA testers use the tool?+
Yes. The web dashboard provides simple forms to create mocks and toggle rules without any command-line work.
What happens if a rule contains a syntax error?+
The SDK catches the error, logs a warning and falls back to the original request so the page never crashes.
How is the tool integrated into an app?+
Add a single script tag with your API key or install the Chrome DevTools extension; no build step is required.
Summarized by DevHunt from proxyceptor.com · Oct 17, 2026. Details may change; check the official site.
