Available on the App Store
D Interceptor app icon

Debug Network Traffic on iPhone, iPad & Mac

A full-featured HTTPS proxy & network debugger — 100% native Swift. Capture, inspect, and modify HTTP/HTTPS traffic from any app, directly on your iPhone, iPad, or Mac — no extra tools needed.

Everything a developer needs

Powerful tools for debugging, mocking, and analyzing network traffic — running locally on your iPhone, iPad, or Mac. No cloud. No extra hardware.

HTTPS Interception

On-device Root CA generation. Decrypt and inspect TLS 1.2/1.3 traffic from any app. SSL Proxying List to control which domains are intercepted.

System-Wide Traffic Capture

Routes all device traffic through a local on-device proxy. Capture HTTP/HTTPS from every installed app — system-wide, no configuration needed.

Rich Request Viewer

Full detail view with headers, body, status, timing. JSON Tree view, image preview, HTML preview, hex dump, and syntax highlighting.

Search & Filter

Real-time search across URL, headers, and body content. Filter by method, status code range, content type, or domain. Pin important requests.

Breakpoints

Pause and edit requests before they reach the server, or responses before they return to the app. Rule-based triggers with pattern matching.

Map Local / Mock

Return custom JSON/text/image responses from local files instead of hitting real servers. Override status codes and headers per rule.

Map Remote

Redirect requests to different hosts or URLs — perfect for pointing to staging, canary, or local servers without changing app code.

Blocklist & Bypass

Block requests by domain or URL pattern with wildcard support. Bypass Proxy List to skip interception for SSL-pinned apps and system services.

Compose & Repeat

Build custom HTTP requests from scratch like a mini Postman. Re-send any captured request with one tap, or edit and replay it.

Scripting

Write custom scripts to automate request/response modification. Inject headers, transform body content, and implement custom logic per matched rule.

Export & Share

Export traffic as HAR files, individual requests as cURL commands, or share via AirDrop. Save full sessions for offline review.

Auth Utilities

Built-in JWT decoder, Base64 encoder/decoder, URL decoder, form-data parser, and multipart viewer — inline in the detail panel.

How D Interceptor Works

A fully on-device pipeline — no external server, no cloud, no extra hardware.

1

Enable VPN

With a single tap, D Interceptor activates a local VPN on your device. All network traffic is routed through the app — no external server involved.

2

Inspect HTTPS Traffic

Install the on-device certificate once. D Interceptor decrypts HTTPS traffic for domains you choose, letting you see encrypted requests in plain text.

3

Debug in Real Time

Captured requests appear instantly in the dashboard. Filter, inspect headers and body, replay requests, mock responses — all on your device.

See it in action

D Interceptor tools
D Interceptor settings and SSL proxying list
D Interceptor blocklist rules

Ready to debug smarter?

Free to download. No Mac needed. No jailbreak required.

Download Free on App Store