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Business Letter Builder

Write a formal business letter from editable templates for requests, complaints, confirmations and follow-ups, or start blank. Download as PDF or as an editable Word (DOCX) file.

Business & Document Tools Runs client-side Free to use
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About the Business Letter Builder

Business Letter Builder helps you produce a correctly laid out formal letter. Start from a template for a formal request, a complaint, a confirmation or a follow-up — or from a blank letter — and edit every part: sender and recipient details, date, reference, subject, salutation, body paragraphs, closing and signature block.

Add optional CC recipients and enclosures. Download the finished letter as a PDF or as a genuine, editable Word document (DOCX) with the same paragraphs and layout, ready for final edits in Word, LibreOffice or Google Docs.

How to use

  1. Choose a template (or Blank) and a font, paper size and date format.
  2. Enter your details as sender and the recipient’s name, title, organisation and address.
  3. Set the date, an optional reference and the subject line.
  4. Edit the salutation and body paragraphs; add, remove or reorder paragraphs as needed.
  5. Complete the closing and signature block, plus optional CC and enclosures.
  6. Download PDF or Download DOCX.

Key features

  • Templates: formal request, complaint, confirmation, follow-up and blank.
  • Editable paragraphs with add, remove and reorder.
  • Reference, subject, CC and enclosures.
  • Sans-serif or serif font, A4 or US Letter.
  • PDF with selectable text and a real editable DOCX file.

Best practices

  • Keep the subject line short and specific.
  • Use one idea per paragraph and finish with the action you want.
  • Address the recipient by name when you know it.
  • List enclosures so nothing is missed.

Benefits

  • Correct business-letter layout without formatting work.
  • Editable Word output for last-minute changes.
  • Templates are static text — no AI, no uploads.

Frequently asked questions

Is the DOCX file really editable?

Yes. It is a genuine Office Open XML document with real paragraphs and text, not an image or renamed HTML.

Are the templates generated by AI?

No. They are fixed starter texts that you edit.

Which letter format is used?

A block-style business letter: sender, date, recipient, reference and subject, salutation, body, closing and signature, all aligned left.

Is my letter uploaded?

No. The letter and both export files are created in your browser.