Underline

Learn a foreign language with a personalized database of flashcards based on the content you view every day!

As of June 2026, Underline has 754 users and a 4.93/5 rating from 15 reviews in the Education category.

UnderlineEducation★ Featured
Usersdown 4.2 percent4.2%
754
754
Ratingno change0%
4.93
15 reviews
Reviewsno change0%
15
Version
0.1.33
Manifest V3

History

3 snapshots

Tracking since Apr 22, 2026.

789.64770.5751.36Apr 22, 2026Jun 7, 2026
View as table
DateUsersRatingReviewsVersion
Apr 22, 20267874.93150.1.33
May 12, 20267644.93150.1.33
Jun 7, 20267764.93150.1.33
Now7544.93150.1.33

Permissions & access

Permissions
storagescriptingcontextMenustabs
Host access
http://*/, https://*/

Screenshots

Underline screenshot 1Underline screenshot 2Underline screenshot 3Underline screenshot 4

About

Underline - expand your vocabulary while you browse the Internet.

Use in 3 steps: 
1. You are browsing foreign language content
2. You select a word you do not understand and click the "U" button 
3. Underline will display the translation, allow you to listen to the word pronunciation and save it as a flashcard in the mobile application

Underline advantages:
- Easy and convenient translation of words directly in the foreign language content
- Reliable result matching thanks to the use of contextual translation
-The ability to listen to the pronunciation, which will allow you to remember a given word better
- Option to save translations as study cards in the mobile application
- Access to suggested words on the basis of previously saved flashcards

By combining two compatible tools - a browser plug-in and a mobile application, Underline combines the process of searching, translating, saving and learning words, which allows you to learn the vocabulary you really need.
Our extension works for Chrome, Opera and Microsoft Edge.

In addition to English, we also have languages such as:
- Spanish
- Ukrainian
- German
- French
- Japanese
- Korean
- Chinese
- and many others

Underline works best with our mobile application, so if you want to learn vocabulary, we encourage you to download it! The mobile application is available in both the App Store and Google Play.


App Store: https://apps.apple.com/us/app/underline-language-learning/id1571773059
Google Play: https://play.google.com/store/apps/details?id=com.fiszki

Technical

Version
0.1.33
Manifest
V3
Size
503KiB
Min Chrome
88
Languages
4
Featured
Yes

Metadata

ID
ogdfpjfkomoeoodbemmkloabcjkmmbol
Developer ID
u613232098186ccd48dd494d8a66d9e3c
Developer Email
[email protected]
Created
Jul 16, 2021
Last Updated (Store)
Aug 7, 2022
Last Scraped
Jun 7, 2026
Website
getunderline.io
Support URL

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Data sourced from the Chrome Web Store · last verified Jun 7, 2026.