Intellistack

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Read 145 Intellistack reviews and testimonials from customers, explore 159 case studies and customer success stories, and watch 41 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 5117 reference ratings
4.7/5.0 (5117)
  • Market Leader 2025 2025
    Fall 2025Market LeaderMobile Forms Automation Software
  • Market Leader 2025 2025
    Fall 2025Market LeaderDocument Automation Software
    • Top Performer 2025 2025
      Fall 2025Top PerformerElectronic Signature Software
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Featured Testimonials

  • "We use Formstack to create a simplified race registration. It allows participants to sign up early, take advantage of early bird-discounts, and include multiple team participants on one form. We are able to consolidate and streamline payment processing, the delivery of return receipts, and the paperwork needed for race registration. This saves us tremendous manual labor by avoiding same-day registrations while integrating the flow of data with other mission-critical applications."

  • "We know Formstack will fulfill all the needs of our clients."

  • "We can be confident in the usability of our forms, Formstack has massively improved our company’s workflow, as non-technical staff feel part of the development whilst our developers can focus on other projects."

Featured Case Studies

  • Sunir Keeps a 2,000-Member Association Running Smoothly

  • How Goose the Market Increased Sales Exposure with Forms

  • Emily Fully Automates Contract Workflows and Saves $50K

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 159 businesses that use Intellistack.

Watch Intellistack Customer Videos to learn why 41 businesses chose Intellistack.

Explore answers to frequently asked questions about Intellistack.