dcode.fr
Free online tools for solving word games, decoding ciphers, puzzles, maths problems and coding tasks
Highlights
- New on EvolcAdded 2026-10-27
About dcode.fr
dCode runs dcode.fr, a collection of more than 900 free online tools for solving word games, decoding ciphers, puzzles, maths problems and computing tasks. The tools include a cipher detector that identifies more than 250 encryption types, word and anagram solvers for letter games, equation and prime-factorisation solvers, and encoders for codes such as Morse, Braille and QR codes.
The users are word-game players, puzzle solvers, geocachers, treasure hunters, students and anyone working on cryptography or maths problems. The site is free to use and is supported by advertising; the site also accepts donations via PayPal and Patreon.
The site was opened in 2009 by its author, an engineer and webmaster, and is developed with a small team of friends. Its published content is mainly in French, with an English-language About page.
Product: A library of more than 900 free online tools for solving word games, decoding ciphers, puzzles, maths and computing tasks.
Jobs at dcode.fr
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Website technologies
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- Cloudflare
- Google Universal Analytics
- PHP
- jQuery