AddReqHeader - Modify Request Header

by tsong.lai@gmail.com · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Create and manage custom HTTP request headers for selected websites or all websites.

Users

+2 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#241K

#201K among extensions

Version

2.0.1

updated 10 Sep 2026

Users

monthly, 1 months

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

Ratings count

monthly, 1 months

Latest, 16 Oct 2026: 0 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 AddReqHeader - Modify Request Header

Modify Request Header is a simple developer utility for creating and managing custom HTTP request headers. Features: - Create multiple request header rules - Enable or disable individual rules - Set a target URL for each rule - Leave the URL blank to apply a rule to all websites - Import and export rules using JSONL files - Store configuration locally in Chrome The extension modifies HTTP request headers only according to rules explicitly configured by the user. The extension does not collect browsing history, website content, analytics data, or usage statistics, and it does not transmit header configurations to external servers. Important: Header values may contain sensitive information such as API keys or authorization tokens. Exported JSONL files contain these values in plain text and should be stored securely.