HAR capture · Manifest V3 extension
Record a page's requests and export a HAR 1.2 file — without ever opening DevTools.
Free & open source · Chrome, Edge & Brave.
Record straight from the toolbar popup, with a live timer and request count.
Capture survives reloads and redirects. Every hop is its own entry.
Sensitive headers, cookies, and URL tokens are redacted automatically — further than browser DevTools.
One Manifest V3 build. The exported HAR records whichever browser you used.
Re-import into the Network panel or any analyzer. Bodies and full timings included.
How it works
SnapHAR attaches the DevTools protocol to your tab behind the scenes.
Reload and click around. Nothing is cleared on navigation.
A valid HAR lands in your Downloads, ready to share or re-import.
Install
Get SnapHAR on the Chrome Web Store → Works in Chrome, Edge & Brave.
# or build from source — load it unpacked open edge://extensions # or chrome://extensions enable Developer mode click Load unpacked → select the folder