Proxelar

A Man-in-the-Middle proxy written in Rust.

Intercept, inspect, and debug HTTP/HTTPS traffic with a terminal, TUI, or web interface.

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Features

• HTTPS interception — automatic CA generation and per-host certificate minting
• Forward & reverse proxy — CONNECT tunneling or upstream URI rewriting
• Three interfaces — terminal, interactive TUI (ratatui), web GUI (axum + WebSocket)
• Request filtering — search and inspect request/response pairs in detail
• Easy CA install — visit http://proxel.ar through the proxy to download the certificate

Installation

cargo install proxelar

Quick Start

# Run (forward proxy, TUI)
proxelar

# Install the CA certificate
# Option A: visit http://proxel.ar through the proxy
# Option B: manually install ~/.proxelar/proxelar-ca.pem

# Configure your system proxy to 127.0.0.1:8080

Usage

proxelar                                          # interactive TUI (default)
proxelar -i terminal                              # terminal output
proxelar -i gui                                   # web GUI at localhost:8081
proxelar -m reverse --target http://localhost:3000 # reverse proxy
proxelar -b 0.0.0.0 -p 9090                       # custom bind address and port

All CLI options

Flag	Description	Default
-i, --interface	terminal · tui · gui	tui
-m, --mode	forward · reverse	forward
-p, --port	Listening port	8080
-b, --addr	Bind address	127.0.0.1
-t, --target	Upstream target (required for reverse)	—
--gui-port	Web GUI port	8081
--ca-dir	CA certificate directory	~/.proxelar

TUI key bindings

Key	Action
j / k / arrows	Navigate
Enter	Toggle detail panel
Tab	Switch Request / Response
/	Filter
Esc	Close panel / clear filter
g / G	Top / bottom
c	Clear requests
q / Ctrl+C	Quit

Contributing

Contributions are welcome! Feel free to open an issue or submit a pull request.

License

MIT