A British English spell checker and thesaurus
Retroprose checks UK spelling as you type. The spell check and a British thesaurus run on your device, so no text is sent away to be checked.
UK spell check
A UK English dictionary, which also accepts Oxford spellings such as organize. Unknown words get a wavy underline. Right-click one, or press Shift+F10, for up to five suggestions. Add names and words of your own to a word list of up to 5,000.
British thesaurus
About 141,000 words, grouped by meaning, with British spellings. Alt+F1 looks up the word at the cursor, and a letter swaps in the word you choose. Hoped finds hope and went finds go.
On your device
The dictionaries run in your browser, so your text never leaves your device. The thesaurus loads one letter at a time, so the server never knows which word you looked up. Both work offline, the thesaurus for any letter you have used before.
Questions
Does it check British or American spelling?
British, unless you choose another. Retroprose uses a UK English dictionary, and accepts Oxford spellings such as organize as well as organise. On your account page you can choose American English instead, or add any of 11 other languages, including French, German, Spanish and Welsh.
Is my text sent anywhere to be checked?
No. Spell check and the thesaurus both run in your browser, on your device.
Is the spell check free?
Yes. UK spell check, the British thesaurus and your own word list are in every edition, including the free floppy disk edition.
Start writing
Free, with room for about 240,000 words. No card to enter, and no adverts.