About
LexiLetter was created to make professional letter writing accessible to everyone. Whether you're drafting a business offer, a cover letter, or personal correspondence — we give you the tools to communicate effectively.
Explainer video
The video is in German, with English subtitles. The steps are the same in every language.
LexiLetter takes your description in plain language and turns it into a formal letter following the DIN 5008 standard — with correct recipient address, subject line, salutation, and closing. You sign digitally via DocuSeal. The finished letter sits as a PDF in your account, ready to forward by email or print and send by post.
What sets LexiLetter apart
DIN 5008 compliant
Every letter follows the German business-letter standard DIN 5008 Form B — correct margins, address block, and fold marks. Letters that recipients take seriously.
Digital signature
Digital signature via DocuSeal on our own instance in Switzerland (a simple electronic signature). Every signed letter is audit-proof and, if you want, merged into a single PDF with your attachments.
Where your data lives
Database and files: Supabase in Frankfurt (EU). Signing: our own instance in Switzerland. AI drafting: Anthropic's Claude API (USA), as a processor under standard contractual clauses. Abuse screening before drafting: TypeSafe, also as a processor. Payments via Stripe, email via Resend. Never shared for advertising.
Frequently asked questions
Is LexiLetter safe for sensitive content?
Yes. Letters and files are stored in the EU (Supabase, Frankfurt); signing runs on our own DocuSeal instance in Switzerland. For drafting, your text goes to Anthropic's Claude API in the USA, which does not retain it. Before that, TypeSafe screens your request for abuse. Only you and the recipient you choose see the letter.
How does the digital signature work?
After generating your letter, you receive an email from DocuSeal with a signing link. Sign with mouse or finger; optionally attach a document (e.g. ID copy). LexiLetter merges the signed letter and any attachments into a single PDF.
How does LexiLetter differ from a template?
A template forces you to fill in blanks. LexiLetter takes your situation in plain language and writes a complete letter tailored to your case — using the correct legal terminology for cancellations, objections, complaints, or applications.
What does LexiLetter cost?
Your first letter is free. After that: €5 per single letter, €15 for five letters, or €9/month (€49/year) on the Pro plan with five letters monthly. No hidden costs, no auto-renewal on one-time packs.
Who is behind LexiLetter?
LexiLetter is a service of Business Technology Consulting OÜ, based in Tallinn, Estonia. Full provider details are in the legal notice. We typically respond to support requests within one business day.
Ready to write your letter?
Describe what you need in one sentence — LexiLetter takes it from there.