What is LetterDeck?
AI-powered formal letter writing for people who need to get something done — without paying a solicitor.
The problem we solve
Most people, at some point, need to write a formal letter — to challenge a decision, complain about something that has gone wrong, exercise a legal right, or get a proper resolution to a dispute. Writing that letter badly means it gets ignored. Writing it well — with the right tone, the right legislation, and the right structure — makes the difference between a response and silence.
Solicitors charge hundreds of pounds an hour. Template letter websites give you a generic, fill-in-the-blank document that looks exactly like what it is. LetterDeck does something different.
How it works
LetterDeck uses AI trained on UK and US legal frameworks to generate letters that are specific to your situation. You fill in a structured form — what happened, who is involved, what you want — and the AI generates a professional, properly structured letter in seconds. Every letter references the correct legislation, regulators, and complaint procedures for that letter type.
You can edit the letter before copying or downloading it. You stay in control.
Who it is for
LetterDeck is for anyone who needs to write a formal letter and wants it done properly. That includes people challenging unfair decisions from councils, employers, landlords, insurers, and the NHS — as well as charities applying for grants, residents objecting to planning applications, and employees asserting their rights at work.
We cover 25 UK letter types and 8 US letter types, with more being added regularly.
Part of the WorkDeck family
LetterDeck is part of the WorkDeck suite of tools — a growing family of vertical SaaS products built to solve real, specific problems for real people. Other products include TempDeck (staffing agency CRM), EstateDeck (estate agency CRM), and FarmDeck (farm management).