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har2llm

Process HAR (HTTP Archive) files into clean, LLM-readable summaries.

Installation

git clone https://github.com/mdev34-lab/har2llm
pip install .

Or for development:

git clone https://github.com/mdev34-lab/har2llm
pip install -e .

Usage

Command Line

har2llm input.har -o output.txt

Python API

from har2llm import process_har

result = process_har('input.har')
print(result)

Features

  • Header Filtering: Removes verbose browser headers (User-Agent, Accept-Encoding, etc.) and extracts only meaningful request headers
  • URL Simplification: Replaces UUIDs and numeric IDs with placeholders ({UUID}, {ID}) to group similar API endpoints
  • Body Summarization: Truncates large JSON bodies while preserving structure
  • Sequence Compression:合并 consecutive duplicate requests into a single entry with a repeat count
  • LLM-Optimized Output: Produces a clean, readable format ideal for feeding to LLMs or for documentation

Example

Input: A HAR file with 100+ browser requests

Output:

# GLOBAL HEADERS (Common to 80%+ of requests)
  authorization: Bearer xxx
  x-api-key: xxx

# REQUEST LOG
## GET api.example.com/users/{ID}
  Query: {"page": 1}
  <- Response 200: [{"id": 1, "name": "Alice"}... (+49 more items)]

## POST api.example.com/users [Repeated 3x]
  Headers: {"content-type": "application/json"}
  Body: {"name": "New User", "email": "user@example.com"}
  <- Response 201: {"id": 42, "success": true}

Requirements

  • Python 3.9+
  • No external dependencies

License

MIT