Best apps like SSL Checker: SSL & HTTPS

Proxygen

Interactive HTTP proxy

Free

This tool allows developers to intercept, inspect, and modify HTTP traffic from their iOS devices on a Mac. It offers advanced features like JavaScript scripting for traffic manipulation and a syntax-aware editor for debugging API endpoints.

Hodor - HTTP(s) Packet Sniffer

Support Flutter WebSocket TCP

Free

This tool captures and rewrites HTTP, TCP, UDP, and WebSocket data traffic, including Flutter app data. It offers features like HTTPS decryption, request/response mapping, and domain filtering for efficient web debugging.

Packet Capture Pro: HTTPS

HTTPS Capture & API Debug

Free

Capture and analyze HTTP/HTTPS/WebSocket traffic on your device. Inspect full request/response details, filter by keywords, and rewrite/replay network responses. Collaborate with PC clients and import/export HAR files for seamless debugging.

Termiux

Linux Emulator & SSH, SFTP

Free

This app provides a full Linux terminal emulator on iOS, allowing native command-line operations without remote connections. It features a virtual keyboard, AI command generation, and customizable themes for system administration practice, script development, and more.

HTTPBot: API & HTTP Client

API, MCP & WebSocket Debugger

Free

This app allows users to send HTTP/HTTPS requests and connect to WebSockets, making it easy to debug APIs on the go. It supports various response formats, collaboration features, and authentication methods, streamlining API development and testing.