Is JetBrains Grazie Writing Companion safe?

Clean risk

JetBrains Grazie Writing Companion sends text typed into web page fields to JetBrains' AI backend for grammar and completion suggestions.

The extension attaches to text areas and editable regions on nearly every website you visit and forwards the text you type there to JetBrains' cloud Grazie/AI service, which returns grammar corrections and writing suggestions. It skips fields where spellcheck is explicitly disabled and does not target password or login inputs, but any other typed content on a page can be sent for processing.

JetBrainsv1.14.4Chrome Web Store
0Risk
Who publishes it

JetBrains s.r.o - 2 other listings from the same operator, none carrying a finding

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
JetBrains
Declared legal entity
JetBrains s.r.o
Registered address
Na Hřebenech II 1718/8, Praha 140 00, CZ
Registered contact
JetBrains Distributions s.r.o.

Same store account

2 other listings published from this account, 82k+ users between them, none of them carrying a finding.

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 1.13.1. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to. The current listed version is 1.14.4, which we have not unpacked yet.

  • Read and change your data on every site you visit

    http://*/* and 1 more

  • Read and change your data on every secure site you visit

    https://*/*

  • See the address and title of every tab you have open

    tabs

  • Schedule its own background tasks

    alarms

  • Run its own code inside the pages you visit

    scripting

  • Store data in your browser

    storage

  • Add items to the right-click menu

    contextMenus

  • Store an unlimited amount of data in your browser

    unlimitedStorage

Where it sends data

Destinations our analysis observed JetBrains Grazie Writing Companion contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • JetBrains Grazie/AI backend (grazie.ai)

    JetBrains Grazie Writing Companion sends data to JetBrains Grazie/AI backend (grazie.ai). Named as a recipient in this extension's own analysis.

Updated 30 September 2026fonaoompfjljjllgccccgjnhnoghohgc