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OpenSidekick — Bring-Your-Own-LLM Browser Agent

Chrome extension by t · Productivity · Tools

A Chrome extension in Productivity · Tools with 133 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 3 screenshots

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

Users
133
Rating
not rated yet
Users, last 12 days
+28
Version
0.1.7
Updated in the store
2026-07-14
Published
2026-07-08
Manifest
V3
Browser access
9 permissions, 1 site pattern

How it has moved

Users
+28 since 31.08
105-134 · 8 readings
  1. 2026-08-31105
  2. 2026-09-02116
  3. 2026-09-04123
  4. 2026-09-06134
  5. 2026-09-07129
  6. 2026-09-08131
  7. 2026-09-10133
  8. 2026-09-11133
Users
+28 since 31.08
105-134 · 8 readings
  1. 2026-08-31105
  2. 2026-09-02116
  3. 2026-09-04123
  4. 2026-09-06134
  5. 2026-09-07129
  6. 2026-09-08131
  7. 2026-09-10133
  8. 2026-09-11133

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.

  • Attach to pages the way developer tools do debugger
  • See the address and title of every tab you have open tabs
  • Run its own code on the pages it can access scripting
Show the remaining 6
  • Act on the current tab, but only after you click it activeTab
  • Schedule work to run later alarms
  • Add items to the right-click menu contextMenus
  • Show you notifications notifications
  • Open a panel beside the page sidePanel
  • 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

t.

Like this one

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

  1. Auto-Browse Describes nearly the same job, smaller audience 72 users
  2. Sidekick API Describes nearly the same job 0 users
  3. Ruminer Browser Agent Describes nearly the same job, smaller audience 24 users
  4. WebPilot — LLM Browser Agent Describes nearly the same job, smaller audience 11 users
  5. Browser AI Agent Describes nearly the same job, smaller audience 29 users ★ 1.0

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.

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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.