Enhancer 4 Google icon

Enhancer 4 Google

by 株式会社4U · Accessibility
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Improves the UI of various Google services, taking these already user-friendly services to the next level.

Users
80K
0 in 30 days
Rating
4.7 / 5
−0.02 in 30 days
Ratings
76
+2 in 30 days
Store rank
#2,618
#2,303 among extensions
Version
1.3.16.1
updated 14 Sep 2026

Users

monthly, 10 months
040K80KDec 2025Jun 2026Oct 2026
Latest, 15 Oct 2026: 80,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 10 months
03876Dec 2025Jun 2026Oct 2026
Latest, 15 Oct 2026: 76 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 Enhancer 4 Google

Enhancer 4 Google was developed to maximize the potential of the amazing services provided by Google. From quality-of-life UI improvements that address specific needs to advanced automation features not originally available, it is packed with functions for power users. 〇Turn NotebookLM into the "Ultimate Knowledge Base" Make information organization and insight acquisition smoother and more powerful. * Homepage Categories & Search: Organize your cluttered homepage. Group notebooks into custom categories with color coding to keep your workspace tidy. Plus, find any notebook instantly with the new real-time search bar. * Web Crawler & Source Generator: Solves NotebookLM's biggest challenge: "importing website hierarchies." It automatically crawls pages by following links from a specified URL (root) and combines/outputs them as a single Markdown file optimized for NotebookLM. Converting an entire site into knowledge has never been easier. * Sync Scheduler (Auto Sync): Previously, even if the source Google Drive or Web page was updated, you had to manually press the sync button on the NotebookLM side. With this feature, synchronization runs automatically in the background at specified intervals (hourly, daily, weekly, etc.). Your Notebook is always up to date whenever you open it. * Bulk Sync Button: Even for notebooks holding a large number of sources, you can check for updates and sync all sources with a single click. There is no need to click through them one by one. * Studio Panel Optimization: The "Studio" panel, which tends to occupy screen space, can now be collapsed to secure a wider chat area. It prevents unintended generation caused by accidental clicks on the "Audio/Video Overview" button and changes behavior to always open the edit prompt, preventing wasted credits. 〇Turn Gemini into a "Comfortable Writing Environment" Make sessions with conversational AI more spacious and speedy. * Sidebar Chat Categories: Tired of an endless list of chat history? Now you can organize your chats into custom folders in the sidebar. Simply drag and drop chats into categories to keep your projects organized. Includes features to rename folders and a native-looking UI that fits perfectly with Gemini's design. * Content Width Expansion (Wide Mode): Break free from the standard narrow display width. You can freely adjust the maximum width of the chat area from 760px to 5000px to match your monitor. Code blocks and table data can also be viewed comfortably without wrapping. * Expandable Markdown Editor: Say goodbye to writing complex prompts in tiny text boxes. This feature adds an 'Expand' button to input fields (especially useful for Gems custom instructions), opening a full-featured popup editor. It comes equipped with Markdown support (headings, tables, code blocks), live preview, and smart list handling (auto-numbering/indentation), making prompt engineering significantly more efficient. * Gem Manager Search: No problem if your created Gems (Custom Bots) increase. A search bar has been added to the Gem list page, allowing you to instantly find the target Gem by name or description. * Tool Shortcuts: Access buttons for frequently used tools like "Deep Research" and "Canvas" are permanently placed in the prompt input field. This saves the trouble of searching deep into menus. 〇"Automate Material Creation" with Google Slides Reduce the effort of turning PDF materials into slides to zero. * PDF to Slides Import: Adds a "Import PDF" button to the slide editing screen. Simply drag and drop your PDF file, and it converts all pages into images and automatically places them on each slide page in coordination with Google Apps Script (GAS). * Image ZIP Bulk Download: It is also possible to download high-quality slide images converted from PDF as a ZIP file in bulk. This is useful for reusing materials. (Note: To use this feature, you need to set up GAS with your own Google account. A complete manual is provided.) 〇Google Chat & Common Features Prevent operational errors and customize usage to your liking. * Prevent Accidental Sending (Custom Key Binding): Customize how you send messages. Change the default behavior to "Enter for new line" and choose your preferred trigger for sending: Shift+Enter, Ctrl+Enter, or Alt+Enter. This prevents incomplete messages from being sent by mistake and applies to NotebookLM, Gemini, and Google Chat. 〇Privacy and Security This extension is designed with "User Privacy Protection" as the top priority. * Data Stays with You: All configuration information and task data are saved only within the browser (Chrome Storage). Nothing is ever sent to the developer's server. * Transparent Communication: The destination for PDF data in the Google Slides function is only the URL of the Google Apps Script set by you. The Web Crawling function is also executed only for the URLs you specify. No data is sent to unintended third parties. * Privacy Policy: https://enhancer.corp-4u.com/privacy.html Disclaimer: This extension is provided "As Is". Please note that functions may become unavailable without notice due to specification changes in Google services, etc.

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%+1−0.03
30 days0+0.0%+2−0.02
6 months+20K+33.3%+12−0.12

Chrome Web Store search rankings

Where Enhancer 4 Google appears when people search the store, with the 30 day change
Search phrasePosition30 days
google keep#76+9
gemini notebook#770
info#98new

Version history

28 versions recorded
1.3.16.114 Sep 2026
1.3.1512 Sep 2026
1.3.1424 Aug 2026
1.3.1321 Aug 2026
1.3.1219 Aug 2026
1.3.1127 Jul 2026
1.3.1025 Jun 2026
1.3.912 Jun 2026

Details

Category
Accessibility
First seen
24 Dec 2025
Size
2.4 MB
Languages
en, ja
Pricing
Free
Privacy policy
enhancer.corp-4u.com
Support
corp-4u.com
Extension ID
cmihmmpeladlmemlonckioeleobhggfl

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
storageactiveTabalarmsdownloadsoffscreenscripting
Site access
https://notebook.google.com/*https://docs.google.com/presentation/*https://script.google.com/*https://ogs.google.com/*<all_urls>
Can read and change data on every website you visit.

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