Best Mail Merge Software in 2026
Updated
In short: Carbone is ranked #1 of 29 as of 4 October 2026, ahead of APITemplate.io and BetterMerge. The best-ranked option with a free plan is APITemplate.io. The lowest first paid tier on this page is YAMM at $2.08/mo.
For creating personalized messages or documents from data, mail merge software can turn records into tailored output. Compare batch personalization with supported data sources, delivery channels, and output types. API access, monthly merge limits, free plans, and paid-from pricing add practical considerations when matching a tool to your workflow. Carbone, APITemplate.io, and BetterMerge are among the entries, alongside CraftMyPDF and G Merge Plus. Consider what you need to produce and where it needs to go, then weigh the listed access options and limits against your expected use.
29 mail merge software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
10 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | CarboneWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | $29/mo | 6.7 | |
| 2 | APITemplate.ioWeb | Two bars | — | 1 of 6 | $19/mo | 6.4 | |
| 3 | BetterMergeWeb · Extension | Two bars | — | 1 of 6 | Free | 6.4 | |
| 4 | CraftMyPDFWeb · API | Two bars | — | 1 of 6 | $29/mo | 6.4 | |
| 5 | G Merge PlusWeb | Two bars | — | 1 of 6 | $6/mo | 6.4 | |
| 6 | MailmeteorWeb · Extension | Two bars | — | 1 of 6 | $5.99/mo | 6.4 | |
| 7 | PDF4me Merge & SplitWeb · API · Extension | Two bars | — | 1 of 6 | Free | 6.4 | |
| 8 | PDFMonkeyWeb · API | Two bars | — | 1 of 6 | €5/mo | 6.4 | |
| 9 | Adobe PDF Services APIWeb | Two bars | — | 1 of 6 | Free | 6.3 | |
| 10 | YAMMWeb · Extension | Two bars | — | 1 of 6 | $2.08/mo | 6.3 | |
| 11 | DocumintWeb · API | One bar | — | — | 1 of 6 | $39/mo | 5.4 |
| 12 | DocuSign eSignatureAPI | One bar | — | — | 0 of 6 | $11/mo | 5.4 |
| 13 | Text Control ReportingCloudWeb · Windows · Mac · Linux · Android · iPhone · API | Two bars | — | — | 6 of 6 | $39/mo | 5.4 |
| 14 | DocmosisWeb · Windows · Linux · Self-hosted · API | Two bars | — | — | 3 of 6 | $49/mo | 5.2 |
| 15 | MergoWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 16 | Conga CLMWeb · Windows · Mac · API | Two bars | — | — | 3 of 6 | — | 5.1 |
| 17 | S-DocsAPI | No signal | — | — | 0 of 6 | — | 5.1 |
| 18 | Windward CoreNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 19 | EDocGenWeb · Self-hosted · API | One bar | — | — | 1 of 6 | $199/mo | 5.0 |
| 20 | Formstack DocumentsWeb · API | One bar | — | — | 1 of 6 | $31.99/mo | 5.0 |
| 21 | PDF Generator APIWeb · Self-hosted · API | One bar | — | — | 1 of 6 | €6.67/mo | 5.0 |
| 22 | Formstack FormsWeb | One bar | — | — | 1 of 6 | $83/mo | 4.9 |
| 23 | PlainMergeWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 4.9 |
| 24 | DocuSign GenWeb | No signal | — | — | 1 of 6 | $20/mo | 4.8 |
| 25 | Mail Merge ToolkitWindows | No signal | — | — | 1 of 6 | — | 4.8 |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which mail merge software is ranked first on Freedom251?
Carbone is ranked #1 of 29 with a score of 6.7. APITemplate.io is second and BetterMerge third.
How many of these have a free plan?
10 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, YAMM has the lowest first paid tier we found: $2.08/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.