Privacy
What fillmein keeps, where it goes, and how to get rid of it. Last changed 22 October 2026.
Without an account
Your puzzles, word lists and settings are saved in your own browser and nowhere else. Clearing the browser's site data removes them. Nothing you type reaches our team.
With an account
Signing in stores your puzzles and word lists in the site's database (Google Firebase) so they follow you between devices, along with the email address of the account. They are stored as they are, not encrypted, so our team, who run the database, can read them. Nobody else using the site can: each account can only reach its own. Accounts are for ages 13 and up.
Puzzles you share
Sharing a link publishes that puzzle's grid, answers, clues, title and author name. Anyone with the link can read all of it, along with an identifier for your account. Stop sharing on the puzzle's Export tab and the link stops working.
Ads
fillmein is free, and ads from Google AdSense help pay for it. Google and its partners use cookies and similar technology to choose which ads to show you and to count them, and that can draw on your visits to this site and others. Where the law asks for your choice first (in Europe, the UK and Switzerland, and some US states), Google's banner asks it, and you can change it with the button below. Anywhere, you can turn off ads based on your interests in Google's Ads Settings, and read how Google uses information from sites that show its ads. The ads never see your puzzles, word lists or account.
Counting visits
Every page counts visits with Cloudflare Web Analytics, which sets no cookies. It sees the page's address and the usual details a browser sends, such as its type and rough location. A page's address can include a puzzle's id, which for a shared puzzle is also its link.
When you write to us
The contact form keeps what you type — your message, and the name and email address you choose to give — along with your browser's name and version, and your account identifier if you're signed in. It is stored in the site's database and sent to our team's email inbox (Gmail), and passed to no one else. The email address you give is used to answer you and nothing else. Messages are deleted from the database after a year.
When something breaks
If a page hits an error, it sends a short report: the error's text, the page's name (not the puzzle), the browser's name and version, and your account identifier if you're signed in. Our team gets a daily summary of them by email. Only our team can read these, they exist so that faults get fixed, and they are deleted after 30 days.
Who else is involved
- Google Firebase runs accounts and the site's database (puzzles and lists of signed-in accounts, shared puzzles, messages and error reports), and Google Cloud runs the small jobs that email messages and error summaries to our team.
- Gmail is our team's inbox, where those emails arrive.
- Google AdSense and the advertisers it works with show the ads, as above.
- Cloudflare hosts and delivers the site's pages, and counts visits; like any host, it sees each request.
- Google Fonts supplies the site's typefaces, so Google sees your browser's request for them.
- Links to OneLook, Wiktionary, XWord Info and Crossword Tracker open those sites, which see you only if you follow them.
None of them is given your puzzles or lists to use for their own ends.
Deleting everything
- Puzzles in your browser: delete them on the My puzzles page.
- A shared puzzle: Stop sharing on its Export tab.
- Your account, with every puzzle, word list and setting stored in it: the button below. It can't be undone, and it doesn't touch the copies in this browser.
to delete your account.
Deleting the account removes it and everything stored in it, on every device, for good.
Questions about any of this go to our team on the Contact page.