Simple Tab Renamer a lightweight Chrome extension that lets you define a few find → replace rules and automatically applies them to your open tabs.

Simple Tab Renamer — popup UI

What it does

The extension injects a small script into matching tabs and updates document.title based on your rules.

  • Target text — the substring to find in the current tab title (document.title)
  • Replacement text — what to replace it with (can be empty)
  • (optional) Domain — apply only on a specific domain (e.g. github.com), or leave empty to apply everywhere
  • (optional) Exact URL — apply only when the full URL matches exactly (domain + path + query + hash)

Features

  • Rule-based renaming (simple text replacement)
  • Domain scoping (optional)
  • Exact URL scoping (optional)
  • Persists rules via chrome.storage.local (survives restarts)
  • Auto-apply on install, browser startup, tab creation, and tab updates
  • Rules manager page with delete, import/export JSON, and clear-all

Simple Tab Renamer — rules manager

Installation (Chrome Web Store)

Install the extension directly from the store Chrome Web Store.

Installation (developer mode)

  1. Download/clone the project.
  2. Open Chrome and go to chrome://extensions.
  3. Enable Developer mode.
  4. Click Load unpacked.
  5. Select the extension folder (the one containing manifest.json).

Usage

Create a rule

  1. Click the extension icon.
  2. Fill in Target text and Replacement text.
  3. Optionally add Domain and/or Exact URL.
  4. Click Save & Apply to apply immediately to currently open tabs.

Manage rules

  • Click Browse in the popup to open the Saved Rules page.
  • From there you can delete rules, import/export JSON, or clear all rules.

Import / export

The Rules page exports a JSON file containing a rules array. During import, rules are sanitized and duplicates are skipped.

Privacy

Rules are stored locally in your browser using chrome.storage.local.