Best Mail Merge Software in 2026
Updated
29ranked
0free plans on this page
$20/molowest paid tier
10 Oct 2026last checked
0 of 2 with known pricing have a free tier;0 of 1 with known code status publish open-source code;0 apps show full bars: free, open, on most devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 26 | Plumsail DocumentsWeb · API | One bar | No | 1 of 6 | 5.0 | ||
| 27 | Formstack FormsWeb | One bar | No | 1 of 6 | $83/mo | 4.9 | |
| 28 | Nintex DocGenWeb · API | One bar | 1 of 6 | 4.9 | |||
| 29 | DocuSign GenWeb | No signal | No | 1 of 6 | $20/mo | 4.8 |
Compare all 4 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Monthly merge limit | Data sources |
|---|---|---|---|---|---|---|---|---|
| 26 | Plumsail Documents | 5.0 | No | 25 /mo | ||||
| 27 | Formstack Forms | 4.9 | No | $83/mo | No | 250 /mo | ||
| 28 | Nintex DocGen | 4.9 | No | |||||
| 29 | DocuSign Gen | 4.8 | No | $20/mo | No | Salesforce customer data, product data, pricing data, standard objects, related objects, Salesforce Billing, Salesforce Subscription Management |