What is inside a HAR file?
A HAR (HTTP Archive) file is a JSON-formatted log generated by web browsers. It records every single network transaction during a session. This includes:
- Request Headers: Often containing live session cookies, JWT bearer authorization strings, and custom client tokens.
- Payload details: All parameters, JSON keys, and passwords sent during login or checkout attempts.
- Response Content: Private user emails, payment responses, account details, and API configuration payloads.
The Risk of Online Viewers
Most online HAR viewers require uploading the log file to their backend servers. When you do this:
- You transmit your raw session cookies and API tokens across the internet.
- Your credentials could be saved in server logs, database stores, or cached by hosting providers.
- If their server is compromised, malicious entities could gain immediate hijacked access to your logged accounts.
Our Solution: 100% Browser Processing
Our analyzer is built with absolute security in mind:
- No File Uploads: The file is loaded locally using the HTML5 FileReader API. The parsing and analysis happen inside your local tab's execution memory.
- Credential Redactor: Built-in local sanitizer lets you strip authentication values with a single click before downloading a safe copy to share with support engineers.
- No Tracking: We do not compile logs or track file details. Your data is yours.