Semantix icon

Semantix

by 4001-lab · Education
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Multilingual Context-aware AI Powered Dictionary

Users
24
−3 in 30 days
Rating
4.9 / 5
unchanged in 30 days
Ratings
9
0 in 30 days
Store rank
#141K
#117K among extensions
Version
1.1.7
updated 27 Aug 2026

Users

monthly, 7 months
02,5005,000Mar 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 24 usersMove the mouse over the chart for any month

Ratings count

monthly, 7 months
049Mar 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 9 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 Semantix

✨ Turn any webpage into a smart learning experience. For PDF feature: 1. Open Chrome 2. Search `chrome://extensions/` 3. Find Semantix and click **Details** 4. Scroll, Find and Enable **Allow access to file URLs** 5. After enabling it, Semantix will work on local PDFs and files. This extension instantly shows context-aware meanings, synonyms, antonyms, word categories, and real usage examples for any selected word — all powered by advanced AI. Instead of generic dictionary definitions, it understands the context of the page you’re reading and gives explanations that actually make sense. Whether you're reading articles, research papers, documentation, blogs, or social media posts, this tool helps you understand faster, learn better, and read more confidently. 🔹 Key Features 👉 Context-aware word meanings (based on page content) 👉 AI-powered explanations instead of generic definitions 👉 Synonyms and antonyms for vocabulary expansion 👉 Word category detection (noun, verb, adjective, etc.) 👉 Real usage examples 👉 One-click lookup — no tab switching 👉 Optional confirmation mode for intentional lookups 👉 Clean, fast, and lightweight 🔹 Why install this? 👉 Learn new words naturally while browsing 👉 Improve vocabulary without interrupting reading flow 👉 Perfect for students, researchers, developers, and professionals 👉 Saves time and boosts comprehension ⚙️ How it works Just double click any word on a webpage, and get an instant AI-powered explanation tailored to the context you’re reading ✨. Enable "Ask before explaining" mode in the extension popup for more intentional lookups ✨. 🚀 Upgrade your browsing into a smarter, more productive learning experience. New features added in Version 1.1.3 - **Word History**: Automatically saves recently looked up words (last 100) - **Favorites**: Bookmark words for later review with one click - **Export**: Download your history and favorites as JSON files for study purposes - **Expandable Details**: Click any saved word to view full definition details New features added in Version 1.1.4 **PDF local file support** # New features - **Cross-Device Sync**: Favorite words automatically sync across all devices when logged into Chrome - **Context Menu**: Right-click selected text to look up definitions - **Phrase Lookup**: Look up single words or phrases (up to 3 words)

Growth

WindowUsersChangeRatingsRating
7 days−1−4.0%00.00
30 days−3−11.1%00.00
6 months+17+242.9%+6+0.22

Version history

7 versions recorded
1.1.727 Aug 2026
1.1.620 May 2026
1.1.514 May 2026
1.1.47 May 2026
1.1.311 Apr 2026
1.1.212 Mar 2026
1.1.16 Mar 2026

Details

Category
Education
First seen
6 Mar 2026
Size
5.7 MB
Languages
en
Pricing
Free
Privacy policy
sites.google.com
Extension ID
pkfmjfakbiiimffjmcdfnlmdiefgiohk

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
storagewebNavigationcontextMenusnotifications
Site access
<all_urls>file:///*
Can read and change data on every website you visit.

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