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Header Toolkit

Chrome extension by HT Toolkit Dev Team · Productivity · Tools

A Chrome extension in Productivity · Tools with 4 users, barely installed.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 2 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
4
Rating
not rated yet
Users, last 18 days
unchanged
Version
1.0.0
Updated in the store
2026-04-14
Published
2026-04-14
Manifest
V3
Browser access
5 permissions, 1 site pattern

How it has moved

Users
unchanged since 31.08
4-6 · 11 readings
  1. 2026-08-314
  2. 2026-09-025
  3. 2026-09-036
  4. 2026-09-045
  5. 2026-09-066
  6. 2026-09-075
  7. 2026-09-086
  8. 2026-09-095
  9. 2026-09-156
  10. 2026-09-164
  11. 2026-09-174
Users
unchanged since 31.08
4-6 · 11 readings
  1. 2026-08-314
  2. 2026-09-025
  3. 2026-09-036
  4. 2026-09-045
  5. 2026-09-066
  6. 2026-09-075
  7. 2026-09-086
  8. 2026-09-095
  9. 2026-09-156
  10. 2026-09-164
  11. 2026-09-174

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Every site you visit. This extension can read and change the content of any page you open.

  • Read and change cookies on the sites it can access cookies
  • Watch the network requests your browser makes webRequest
  • Block or redirect requests by rules it declares in advance declarativeNetRequest
Show the remaining 2
  • Act on the current tab, but only after you click it activeTab
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

HT Toolkit Dev Team.

Like this one

Listings the catalog judges closest in what they say they do.

  1. HTTP Header Lab Describes nearly the same job, smaller audience 17 users ★ 5.0
  2. Header Forge Describes nearly the same job, smaller audience 34 users ★ 5.0
  3. EZ Header Describes nearly the same job, smaller audience 21 users ★ 5.0
  4. OpenHeader Describes nearly the same job, smaller audience 207 users ★ 5.0
  5. Header Switcher Describes nearly the same job, smaller audience 16 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

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Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.