This website collects absolutely no data. Nothing is sent to any server. There are no analytics, no cookies, no tracking pixels, no third-party scripts. We collect zero data. None. Nada. Noll.
Your learning progress (which words you've marked as learned) is stored
entirely in your browser's localStorage. It never leaves
your device. If you clear your browser data, your progress will be reset.
No account is needed. No sign-up. No personal information is ever requested or stored.
This entire application is a single HTML file with no backend, no server, no database, and no network requests. You can disconnect from the internet and it will continue to work perfectly. You can view the source code yourself — what you see is everything there is.
The word frequencies were computed from thousands of Swedish-language books. All books used are in the public domain and freely available for use. Only aggregate word counts are included — no original text is reproduced.
| Source | License | Description |
|---|---|---|
| Project Gutenberg | Public Domain | Classic Swedish literature in plain text. Free to use for any purpose. |
| Litteraturbanken | Public Domain | The Swedish Literature Bank — digitized Swedish classics, hosted via Internet Archive. |
| Internet Archive | Public Domain | Additional Swedish-language public domain texts available for free download. |
All texts used were published before 1930 or are otherwise confirmed to be in the public domain. No copyrighted material was used in generating the word frequency data.
Questions, concerns, or feedback? Reach out at hello@digirence.com