What is a HAR file?
A HAR (HTTP Archive) file is like a "black box" of your web browsing. It records every detail of the conversation between your browser and the server: timings, headers, cookies, and content.
Essential for debugging network issues, optimizing performance, and auditing security.
Export HAR in 3 Steps
- F12 > Network Tab
- Refresh the page to capture traffic
- Navigate through the page to load the data you need
- Right Click > "Save all as HAR with content"
Frequently Asked Questions
Is it safe? Where does my data go?
Completely safe. Processing is done 100% in your browser memory. Your file is analyzed locally and never leaves your device. No one (not even us) can see it later.
File size limit?
We support files of unlimited size (limited only by your device's RAM). This covers 100% of web debugging use cases while keeping the service free and fast.