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Best Mail Merge Software in 2026
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.
- 27 apps
- Research read 23 Sept 2026
- How the order is worked out
- 1
Carbone
Free plan Open source APILinuxMac+3Carbone covers template-based document generation, conversion and multiple deployment models. Review how its data-size document counting and overage billing fit your expected workload.
- 2
BetterMerge
Free plan ExtensionWebBetterMerge combines spreadsheet-driven personalization with scheduling and campaign tracking for Gmail.
- 3
APITemplate.io
by APITemplate.ioFree plan WebAPITemplate.io offers several content inputs, template editors and generation modes, with usage allowances that vary by plan. The free tier is limited, while paid plans are billed annually.
- 4
CraftMyPDF
by CraftMyPDFFree plan APIWebCraftMyPDF combines template design, data merging, fillable forms, and automated generation in one service. Check its monthly document and template limits against your workload before choosing a plan.
- 5
Documint
Free plan APIWebPick Documint if you want to generate branded PDFs from connected data using visual templates or an API.
- 6
Mailmeteor
Free plan AndroidAPIExtension+2Mailmeteor combines mail merges with campaign scheduling, tracking, and reply management. Its free Hobby plan has a 500-email monthly limit, while paid plans start at $5.99 a month billed per user.
- 7
G Merge Plus
Free plan WebG Merge Plus combines spreadsheet-driven document creation with personalized Gmail campaigns and scheduling.
- 8
Mergo
Free plan WebMergo brings mail merge, campaign tracking, and automation to a Google-centered workflow. The free plan covers an initial campaign, then caps campaigns at 30 emails.
- 9
PDFMonkey
by PDFMonkeyFree plan APIWebPDFMonkey offers both visual and code-based templates, several output formats, and developer integrations.
- 10
- 11
Adobe Document Generation API
Free plan Web - 12
YAMM
Free plan ExtensionWebYAMM brings personalization, campaign tracking, scheduling, and some CRM workflows to Gmail and Google Sheets. The free tier has a low daily recipient limit; higher limits require an annual Pro plan.
- 13
Docmosis
Free trial APILinuxSelf-hosted+2Choose Docmosis when you need template-based document generation connected to an application, with Cloud hosting or self-hosted deployment options.
- 14
Docupilot
Free trial APIWebDocupilot combines template-based document generation with data mapping, conditional rules and workflow connections.
- 15
EDocGen
Free trial APISelf-hostedWebChoose EDocGen if your team needs to produce documents from structured data and templates, with batch or API workflows and approval routing.
- 16
Formstack Documents
by Formstack (Intellistack, LLC)Free trial APIWebFormstack Documents covers template creation, data merging, routing, bulk output, and API-based generation in a cloud service.
- 17
PlainMerge
Free trial LinuxMacWeb+1PlainMerge offers spreadsheet-driven PDF personalization with offline desktop use and email delivery options.
6.0 Visit site - 18
GMass
Free trial ExtensionWebGMass brings campaign sending and management into Gmail, with options for personalization, follow-ups, and integrations.
5.9 Visit site - 19
PDF Generator API
by Actual Reports OÜFree trial APISelf-hostedWebPDF Generator API combines template design, data merging, and a broad set of PDF operations. The 14-day trial is available without a card, while annual pricing starts at €80/yr.
- 20
Text Control ReportingCloud
Free trial AndroidAPIiPhone+4Choose ReportingCloud when an application needs API-based document generation from templates and JSON data, with an online editor and multiple client options.
- 21
Nintex DocGen
Free trial APIWebNintex DocGen brings template-based document generation and delivery into Salesforce workflows.
- 22
Windward Core
Free trial APILinuxSelf-hosted+1Consider Windward Core if your application needs to generate personalized documents from templates and connected data.
- 23
Mail Merge Toolkit
Free trial WindowsMail Merge Toolkit extends Office mail merge with personalization, attachments, protection, scheduling, and multiple data sources.
- 24
Plumsail Documents
by PlumsailFree trial APIWebPlumsail Documents covers template-based generation, workflow automation, conversion, and PDF controls, with several ways to connect it to other systems.
- 25
Conga Composer
Paid Web
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price