See what your code actually sends to Redis, MySQL, Postgres, MongoDB, RabbitMQ, Elasticsearch — zero code changes, any language.

Ocular is a middleware traffic visualization tool written in Rust. It lets you observe, in real-time, exactly what your application sends to its backing services — without modifying a single line of code.

• Getting Started — Installation and first steps
• Configuration Reference — All ocular.toml options explained
• Proxy Mode vs Capture Mode — Which mode to use and when
• Usage Scenarios — Common setups with diagrams (local dev, Docker, CI, production)
• CLI Reference — All command-line flags and subcommands
• Keybindings — TUI keyboard shortcuts and Vim-style navigation
• Supported Protocols — Protocol support matrix and notes
• Event Filtering — Exclude/include rules to reduce noise
• Architecture — Crate structure and how Ocular works internally
• Adding a New Protocol — Step-by-step guide for contributors
• Troubleshooting — Common issues and solutions
• FAQ — Frequently asked questions

# Homebrew (macOS/Linux)
brew tap beyondlex/tap && brew install ocular
# Cargo
cargo install ocular-cli
# Shell script
curl -fsSL https://raw.githubusercontent.com/beyondlex/ocular/main/install.sh | sh

# Try it instantly with simulated traffic
ocular --demo

v0.13.0 (2026年05月28日) — See Changelog