Overview · Features · Requirements · Setup · Run · Build · Test · Contributing · License

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Client-side HAR viewer built with Rust, Leptos, and WebAssembly.

Overview

har-viewer loads a HAR file in the browser and lets you inspect requests/responses with filtering, sorting, and split request/response panes.
No backend is required.

Features

• Local HAR import via file picker or drag-and-drop
• Indexed parsing for large HAR files
• Toolbar filters (search, method, status group, MIME)
• Sortable HTTP history table
• Split inspector for raw request and response messages
• Light/dark theme toggle

Requirements

• Rust (stable)
• wasm32-unknown-unknown target
• Trunk (cargo install trunk)

Setup

rustup target add wasm32-unknown-unknown

Run (development)

trunk serve

Then open the local URL printed by Trunk (typically http://127.0.0.1:8080).

Build

trunk build --release

Test

cargo test
cargo check --target wasm32-unknown-unknown

Project Structure

• src/ui/ UI components and interaction logic
• src/har/ HAR scanning, parsing, and message formatting
• src/state/ app state and selection/sort/filter behavior
• src/filter/ filter model
• style/main.css app styling
• index.html Trunk entry point

Notes

• The app is intended to run in the browser. Running the native binary prints a message and exits.

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/cool-feature)
3. Commit your changes (git commit -m 'Add some cool feature')
4. Push to the branch (git push origin feature/cool-feature)
5. Open a Pull Request

Support

If this crate saves you time or helps your work, support is appreciated:

License

This project is licensed under the MIT License; see the license for details.