Privacy Policy

Last updated: November 8, 2026

Kvačica is a browser extension that checks Croatian spelling and grammar in text fields. It has no accounts, analytics or tracking, and we don't sell or share your data. Your text leaves the browser only if you choose an online checker, and then only goes to that checker.

Text you check

To check text, Kvačica reads what you type into text fields. Where the text goes depends on the checker you choose:

• Local: checked in your browser. Nothing is sent.
• ispravi.me: the text is sent to ispravi.me. When you apply a suggestion, the original word, the correction and the request ID are sent too, so ispravi.me can improve its suggestions. ispravi.me's own terms apply.
• ChatGPT: if you sign in with your ChatGPT account, the text is sent to OpenAI's API under your account, with request storage turned off. OpenAI's terms apply.

Nothing is checked until you pick a checker. By default, email addresses, phone numbers and links are replaced before text is sent; you can turn this off. You can also turn Kvačica off for individual sites and fields.

We never receive the text you check, unless you include it in a problem report.

Sign in with ChatGPT

You sign in on OpenAI's page. Kvačica keeps the sign-in tokens and your account name and email in your browser, and sends them only to OpenAI. Signing out removes the tokens.

Problem reports

You can send us a problem report from the popup. A report contains:

• your message, and your email address if you enter one
• the site's hostname and the checked text with the issues found in it, only if you tick those options
• the extension version, browser, chosen checker and interface language
• your approximate country, based on your IP address

Reports are stored with Cloudflare and used only to fix problems and improve Kvačica. Your IP address is used to prevent spam but isn't stored with the report. You can ask us to delete a report at any time.

Data in your browser

Your settings are kept in the browser's extension storage and may sync between your devices if you use browser sync. Your ispravi.me usage and ChatGPT sign-in are stored on your device only. Uninstalling Kvačica removes this data.

Permissions

Kvačica runs on all sites so it can check text fields wherever you type. It uses storage for settings, activeTab to include the current page in a problem report, and declarativeNetRequest only to finish the ChatGPT sign-in.

Contact

For questions or deletion requests, email privacy@kvacica.net.

If this policy changes, the new version will be posted here.