SnapHAR

HAR capture · Manifest V3 extension

Capture network traffic in one click.

Record a page's requests and export a HAR 1.2 file — without ever opening DevTools.

Free & open source · Chrome, Edge & Brave.

Already have a .har? Open the viewer →

SnapHAR popup: open → record → stop & export a .har
01

No DevTools required

Record straight from the toolbar popup, with a live timer and request count.

02

Preserve-log by default

Capture survives reloads and redirects. Every hop is its own entry.

03

Safe by default

Sensitive headers, cookies, and URL tokens are redacted automatically — further than browser DevTools.

04

Edge, Chrome & Chromium

One Manifest V3 build. The exported HAR records whichever browser you used.

05

Valid HAR 1.2

Re-import into the Network panel or any analyzer. Bodies and full timings included.

How it works

01 / Start

Hit record

SnapHAR attaches the DevTools protocol to your tab behind the scenes.

02 / Reproduce

Trigger the bug

Reload and click around. Nothing is cleared on navigation.

03 / Export

Save the .har

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