DocGen Guide 128 tools · prices checked 20 Oct 2026 Find my tool
Menu

Letter generators for Zapier, Make or n8n

If you need a letter built from data sent by Zapier, Make or n8n, 5 tools here can make one. The first three in our order are MailMergic, Knackly and Gavel. Of these, 3 have a free tier.

Tools
5
With USD price
5, from $19.50
Free tier
3
Direct / via Zapier
2 / 3
Checked
20 Oct 2026
  1. 01
    MailMergic mailmergic.com

    PDF mail merge from Sheets.

    Outputs PDF, DOCX, XLSX, email Template PDF form Also reads Google Sheets, Excel, CSV
    $39 / mo
  2. 02
    Knackly knackly.io

    Legal document automation.

    Outputs DOCX, PDF Template Word Also reads built-in forms, API
    $209 / mo
  3. 03
    Gavel Editor's pick via Zapier gavel.io

    Formerly Documate (Documate Inc. dba Gavel).

    Outputs DOCX, PDF Template Word, PDF form Also reads built-in forms, API
    $83 / mo
  4. 04
    Documentero via Zapier documentero.com

    Micro $19.50/mo shown; price formatting unclear on page.

    Outputs DOCX, XLSX, PDF Template Word Also reads Google Sheets, CSV, Excel, API +1
    $19.50 / mo, cheapest here
  5. 05
    Crove via Zapier crove.app

    Individual $33/mo billed $390/yr.

    Outputs PDF, DOCX, e-sign documents Template Word, Visual builder Also reads built-in forms, API
    $33 / mo

What differs for Zapier, Make or n8n

For letters built from data sent by Zapier, Make or n8n, the lowest paid starting price is $19.50 a month, from Documentero. Published starting prices run from $19.50 to $209 a month, the top end from Knackly.

These tools for letters most often write PDF (5), DOCX (5) and XLSX (2). The automation platform is the trigger: a Zap, scenario or workflow sends the data to the generator when something changes in a connected app. Prices were checked on 20 Oct 2026.

Not sure which one fits? Answer three questions and get three tools back, scored by the rules on the methodology page.

Find my tool