Automatically displays interactive tooltips for acronyms with their expansions.
Users
95
+6 in 30 days
Rating
4.2 / 5
unchanged in 30 days
Ratings
5
0 in 30 days
Store rank
#86K
#72K among extensions
Version
2.01
updated 10 May 2026
Users
monthly, 2 years
Latest, 18 Oct 2026:95 usersMove the mouse over the chart for any month
Ratings count
monthly, 2 years
Latest, 18 Oct 2026:5 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 Acronym Expander
Research papers and articles often utilise non-standard acronyms (NSAs) that are introduced early in a text and then used throughout, and these are surprisingly easy to forget. This extension automatically identifies these acronyms on websites and adds tooltips containing their expansion to each one - allowing you to hover over them to see their full meaning.
*** New in v2.0 ***
- MAJOR UI overhaul, with multiple bugfixes behind the scenes.
- Added light/dark themes
- Forwards acronyms now supported (e.g. 'NSAs (Non-standard acronyms) will now be identified)
- Improved ability to identify acronyms in sites with 'weird' HTML
*** New in v1.9 ***
- Added ability to manage the stored acronym data for sites, including automatically deleting the data 'x' days after the site was last visited !
- Added regex support to create lists of sites to NEVER tooltip (e.g. github, youtube, etc)
*** Key features ***
- Automatic Acronym/Expansion Detection
- Customisable Acronyms: Delete, edit, or even add new acronyms
- Stored Site Acronyms: Acronyms are specifically saved to each site, so when revisiting an old paper you can still see all your automatically/manually saved acronyms !
- Create Key Acronyms: Key Acronyms are implemented across ALL sites, so you can create a central bank of acronyms/expansions (for example a list of genes and their functions), and have these automatically applied to every paper you visit !
- Toggle Acronym Visibility: This will turn off all non-key acronyms, useful for when you're reading a familiar paper
- Import/Export Key Acronyms: Key Acronyms can be easily imported/exported to enable quick sharing and personal storage !
- Hidden Acronyms: Acronym-Expansion pairs that won't be tooltipped on any site (useful if theres a common acronym you come across a LOT)
- Control tooltip sizing