Intellistack

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Read 145 Intellistack reviews and testimonials from customers, explore 158 case studies and customer success stories, and watch 42 customer videos to see why companies chose Intellistack as their Electronic Signature

Intellistack (formerly Formstack) has grown into a leading provider of powerful, no-code productivity solutions that help teams do more with less. Across thousands of organizations worldwide, their tools and platform empower users to quickly build custom forms, automate document generation, capture eSignatures, and streamline data-driven processes—all without needing to write a single line of code.

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Customer Rating Review Scorebased on 5098 reference ratings
4.7/5.0 (5098)
  • Market Leader 2025 2025
    Fall 2025Market LeaderDocument Automation Software
  • Top Performer 2025 2025
    Fall 2025Top PerformerElectronic Signature Software
    • Market Leader 2024 2024
      Fall 2024Market LeaderMobile Forms Automation Software
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Featured Testimonials

  • “Formstack has been a game-changer.”

  • "Formstack is our all-in-one Salesforce solution for forms, docs, and sign. We’d rather work with one great company than multiple siloed softwares."

  • "Thanks to Formstack, we’ve been able to eliminate a lot of steps from each campaign. Now we have the ability to not just track cost per click or cost per conversion but truly how much it costs on the campaign level to bring people to class."

Featured Case Studies

  • Trace Media Marketing - Customer Case Study

  • Chris Transforms Membership Processes with Automation

  • How LeadChat Cut Their Sign-Up Process in Half

Featured Customer Videos

Additional Intellistack Information & Resources

Read Intellistack Reviews, Testimonials & Customer References from 145 real Intellistack customers.

Browse Intellistack Case Studies, Customer Success Stories, & Customer References from 158 businesses that use Intellistack.

Watch Intellistack Customer Videos to learn why 42 businesses chose Intellistack.

Explore answers to frequently asked questions about Intellistack.