Formstack costs $92 a month. If you found this page, you either already know that and are looking for something cheaper, or you just found out and need to sit down for a moment.
The $92 plan — Formstack Documents, formerly WebMerge — is specifically for document generation. Not forms, not e-signatures, not the full Formstack platform. Just generating filled documents from templates. For $92 a month.
There are cheaper alternatives. There's even a free one that doesn't require you to add merge tags to your templates at all. Here's the honest breakdown.
Before writing off Formstack, it's worth understanding what the price buys. Formstack Documents is built for enterprise workflows: Salesforce integration, HIPAA compliance, e-signature routing, Zapier triggers, and a full API. If your company needs documents automatically generated when a CRM deal closes and then routed for signature and stored in Salesforce — Formstack is genuinely good at that.
Most small teams don't need any of that. They need to fill the same Word template with different client data and download the result. That's a $5 problem being solved by a $92 tool.
Every tool in this category — Formstack, Docupilot, PandaDoc, the tool that was WebMerge — requires you to modify your templates before they'll work. You insert special tags like {"{"}ClientName{"}"} or «ProjectDate» into every location in the document where data should go. If the tag syntax is wrong, it breaks. If someone edits the document and removes a tag, it breaks silently.
This is not a bug. It's how document merge tools have always worked. You're essentially writing a simple program and the tags are the variables.
The newer AI-based approach skips this entirely. The AI reads your existing document — with blanks, underscores, or example text — and identifies the fields itself. You don't modify the template at all.
| Tool | Price | Merge Tags Required? | Free Plan? | Best For |
|---|---|---|---|---|
| Formstack Documents | $92/mo | Yes | No | Enterprise, Salesforce, compliance |
| Docupilot | $29/mo | Yes | No (trial only) | Mid-size teams with Zapier workflows |
| PandaDoc | $35/mo | Yes | Limited | Sales teams needing e-signatures |
| DocsAutomator | $19/mo | Yes | No | Google Docs users |
| Magic Decoder | Free / $4.99/mo | No — AI detects fields | Yes | Teams with existing templates, no setup |
WebMerge was the simple, affordable document merge tool before Formstack acquired it in 2018. It did one thing: take a template, take some data, produce a filled document. It was $29/month and required no CRM integration or compliance features.
After the acquisition it became Formstack Documents, the price climbed, and the product grew into something more complex than many users needed. A lot of WebMerge users have been looking for a replacement that does what WebMerge did, without the enterprise overhead.
Magic Decoder is the closest thing to that: simple, cheap, focused only on filling templates. The difference is that it doesn't require merge tags in the template, which WebMerge did.
If you have a Salesforce integration and need documents auto-generated when deals close, Formstack is worth the money. If your industry requires HIPAA-compliant document handling, the enterprise platforms exist for a reason. If you need legally binding e-signatures built into the workflow, PandaDoc makes more sense.
If you're using Formstack or Docupilot mainly to fill the same 3-5 templates with different data each time — and you're not using the CRM integrations or compliance features — you're probably overpaying significantly.
Try uploading one of your existing templates to Magic Decoder. If the AI finds your fields accurately, you're set. If you have complex conditional logic or need to trigger document generation from a CRM event, you might need to stay where you are.
Upload a template and see if the free plan covers your needs
No merge tags. No setup. Cancel Formstack after.
Try It FreeReady to stop doing this manually?
Try Magic Decoder free
Upload your template and watch AI find every field in 30 seconds. No signup, no credit card.
Upload a Document