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T3rnel Browser

t3ratech.github.io
Visit t3ratech.github.io
Category
Developer Tools
Rank
No. 2070Tools index

Previous survey · No. 1969 ·

Pricing
Freemium
Type
TOOL
Use case
Workflow Automation
Interfaces
MCP · Browser Extension
Date

About

A browser extension that turns Chrome/Brave/Edge into an MCP server exposing 98 tools (CSS inspection, full-page screenshots, Markdown viewing, page audits, record/replay) so AI coding agents like Claude Code, Cursor, and Windsurf can drive your logged-in browser. It differentiates from free automation tools like Playwright MCP by adding a human-in-the-loop safety layer: credential redaction, action confirmation for page-changing steps, and a scrubbable action timeline.

What it does

According to its homepage, T3rnel is a browser extension that gives AI coding assistants like Claude Code, Cursor, and Windsurf control of your own signed-in Chrome, Brave, or Edge browser through the Model Context Protocol, while a human confirms page-changing actions and can review or step back through a saved timeline.

Stated on the product site

Pricing model
A free tier plus a one-time Pro purchase covering three activations, with no subscription
Platform support
Available for Chrome, Brave, and Edge, which share one store package; other browsers are listed separately
Credential handling
Per-site credentials are stored encrypted on the user's device rather than in plaintext
Human-in-the-loop control
The site states that page-changing actions require confirmation and that a scrubbable timeline lets a user step backward through a run
Interface type
Operates as an MCP server so external MCP clients drive the user's own browser session

Not stated on the site

  • The page does not state how far along Opera, Chromium, or Firefox support is, only that those store listings are described as in review.
  • The page does not state what happens to a Pro license's three activations if a device is lost, reset, or replaced.
  • The page does not state the encryption method or standard used for the on-device identity vault.

Written from the product site at t3ratech.github.io.

What it can do

  • Expose browser control to AI coding agents via MCP server

    AI agent commands → Browser actions

  • Inspect CSS of web page elements

    Web page → CSS data

  • Capture full-page screenshots

    Web page → Screenshot image

  • View Markdown content in browser

    Markdown file → Rendered view

  • Run page audits

    Web page → Audit results

  • Record and replay browser actions

    User browser actions → Replayable action sequence

  • Redact credentials from captured data

    Page content or logs → Redacted content

  • Require confirmation before executing page-changing actions

    Proposed browser action → Confirmation prompt

Tags

mcpbrowser-extensiondeveloper-toolsai-agentsbrowser-automationcss-inspectorscreenshot

Media

T3rnel Browser

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Editorially curated, with community endorsements as a secondary signal. Corrections welcome.