OpenHeader

by kevinchua6 · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

A lightweight open-source extension to modify request and response headers and filter by URL regexes.

Users

260

+58 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#57K

#48K among extensions

Version

1.2.1

updated 7 Jul 2026

Users

monthly, 4 months

Latest, 15 Oct 2026: 260 usersMove the mouse over the chart for any month

Ratings count

monthly, 4 months

Latest, 15 Oct 2026: 5 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 OpenHeader

Simple extension to add, modify, or remove HTTP request and response headers on any website. Free, open-source, no account needed. Modifying headers should be simple and hassle-free. Supports dark and light mode. More information on https://github.com/kevinchua6/openheader