One-Click HAR Exporter

Capture HAR files instantly—without opening DevTools, clicking through menus, or renaming files manually.
One-Click HAR Exporter records all network activity from the current tab and downloads a clean, complete HAR file named after the page title.

No setup. No confusion. Just click → capture → Download.

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🚀 Key Features

🔘 One-Click Recording

Open the popup → click Record & Download → the extension captures all network requests and saves the HAR.
Status automatically updates as:

• Initializing
• Recording
• Processing
• Downloading
• Done

📄 Automatic Clean Filenames

HAR files are saved as:

<site-title>.har

The extension sanitizes forbidden characters and guarantees proper .har extension.

🔍 Full HAR Export

Includes:

• Request URLs
• Methods
• Status codes
• Request headers
• Response headers
• Response bodies (when accessible)
• Timing information

All compiled into a valid HAR 1.2 structure.

📝 Optional Console Log

If console messages are captured, they are saved as:

<site-title>_Console.txt

🔐 Privacy-Focused

• No data leaves your device
• No external servers
• Everything happens within Chrome’s debugger API
• All files are generated and stored locally

🌐 Works on Every Site

HAR capture works on any website you have access to.

⚡ MV3 Compatible

Runs using a Manifest V3 service worker for maximum stability and performance.

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🧩 How to Use

1. Open any webpage you want to capture.
2. Click the One-Click HAR Exporter icon in your Chrome toolbar.
3. In the popup, click Record & Download.
4. Wait a few seconds while:
   • The debugger attaches
   • The page reloads (if needed)
   • Network requests are captured
   • The HAR is generated
5. Your HAR file is automatically downloaded as:

<Site Title>.har

If console logs were captured, you'll also get:

<Site Title>_Console.txt

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🛡 Permissions Explained

Permission	Why It’s Needed
debugger	Capture network traffic via Chrome's Debugger Protocol
downloads	Save .har and .txt files locally
tabs	Identify the active tab and fetch its title
activeTab	Temporary access to the tab being captured

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📦 Output Files

HAR File

<site-title>.har

Console Log (optional)

<site-title>_Console.txt

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🛠 Troubleshooting

HAR not downloading?

You may have closed or switched the tab while recording. Re-run the capture.

File downloaded as download.json?

The extension overrides Chrome’s filename behavior to force correct naming.

Missing response bodies?

Some sites block body extraction for security reasons.

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👨‍💻 Developer Notes

• popup.html — The UI for the button and status
• popup.js — Handles interactions and status updates
• background.js — Captures network activity, builds HAR, exports files
• manifest.json — MV3 service worker configuration & permissions

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👨‍💻 Author

Made with ❤️ by Harsh Trivedi