WireProbe: API & HTTP Client

WireProbe is an API client and network diagnostics tool for iPhone and iPad. It does one thing desktop tools cannot: send the same request over Wi-Fi and over cellular, then put the results side by side. WHY THAT MATTERS "Works on Wi-Fi, breaks on 4G" is one of the hardest bug reports to chase, because the two paths are not the same path: • CDN geo-routing — your carrier's exit IP resolves to a different edge node, or bypasses the CDN entirely • Carrier middleboxes — some networks rewrite headers, inject content or cache responses • Different DNS resolvers on each path • IPv4 vs IPv6 — Wi-Fi often has IPv6, cellular may not • Carrier QoS — throttling on specific domains or traffic types Your laptop can never reproduce this: it has no cellular interface. WireProbe binds a connection to a specific interface, runs the request on each network in turn, and shows you exactly where they diverge. WHAT YOU GET • Dual-network comparison — status code, total time, per-stage timing breakdown and response body, side by side, with a plain-language verdict on what differs • Full request builder — 7 methods, headers, query parameters, JSON / Form / GraphQL / raw bodies • Response inspection — pretty-printed JSON, raw text, headers, a timing waterfall, TLS certificate details • Query and search — JSONPath (including filters) and XPath, plus in-body keyword search with hit-by-hit navigation • Authentication — Basic, Bearer, Digest and API keys, with inline JWT decoding • WebSocket debugging — handshake details, a live message stream, send and receive counters • Server-Sent Events — streamed events arrive as they happen, with handshake and first-event timing separated • Import and export — cURL, Postman collections and environments, HAR captures, OpenAPI / Swagger • Collections, environments and variables — {{variable}} substitution with nested variables • History — every request saved locally and restorable to the editor • Mock responses — record a real response and replay it offline • Dark and light appearance BUILT FOR INSPECTION, NOT AUTOMATION WireProbe deliberately stops at inspecting. There are no test scripts, no runners and no CI integration. It is the tool you reach for when you need to see what actually happened on the wire. PRIVATE BY DESIGN • No account, no sign-up • No analytics, no telemetry, no crash-reporting SDKs • Requests go straight from your device to the server you typed in — nothing passes through us • Your requests, history and credentials stay on your device • Deleting the app deletes its data WireProbe is for developers testing systems they own or are authorised to test.