Mocklet DevTools

by Nikolai Ovdienko · mocklet.io · Developer Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

DevTools panel for recording/importing HAR and creating mocks.

Users

0 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#230K

#192K among extensions

Version

0.4.2

updated 7 May 2026

Users

monthly, 7 months

Latest, 16 Oct 2026: 6 usersMove the mouse over the chart for any month

Ratings count

monthly, 7 months

Latest, 16 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Mocklet DevTools

Mocklet adds a panel to Firefox DevTools for turning recorded network traffic or imported HAR files into hosted HTTP mocks. Record requests directly in DevTools or upload a HAR file, validate captured endpoints before deployment, tune matching rules for query parameters, headers, and body fields, filter entries by resource type, and create hosted mock servers with a configurable TTL. You can also review and delete mocks from the panel. A Mocklet sign-in is required. How to find the extension 1. Open any web page 2. Press F12 or right-click and select "Inspect" 3. Open the "Mocklet" tab