Top 12 Open-Source Alternatives to Formstack

Formstack

Use our drag and drop online form builder for surveys, registrations, payment collections, lead generation and more. Our online forms offer robust features and 50+ integrations that allow you to automate workflows, capture leads & more.

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Product categories

Appointments and Scheduling Backend As A Service CRM Customer Experience Customer Feedback Form Builder Forms And Surveys Marketing Tools Survey Tools Surveys Web Forms WordPress

Summary

The top open-source alternatives to Formstack are XLForm, LimeSurvey, and Birdeye. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

XLForm Landing Page
1

XLForm

XLForm is an iOS library to create dynamic table-view forms.
Pricing:
- Open Source
#Surveys #Marketing Tools #Form Builder
LimeSurvey Landing Page
2

LimeSurvey

LimeSurvey: the Online-Umfrage Tool - Open-Source Suryeys
Pricing:
- Open Source
#Surveys #Marketing Tools #Form Builder 1 social mentions
Birdeye Landing Page
3

Birdeye

AI Agents for Multi-Location Brands
Pricing:
- Open Source
- Paid
- Free Trial
- $299 / Monthly
#Surveys #Appointments and Scheduling #Live Chat 6 social mentions
Conversational Form Landing Page
4

Conversational Form

Turning web forms into conversations. By SPACE10
Pricing:
- Open Source
#CRM #Surveys #Form Builder
SurveyJS Landing Page
5

SurveyJS

Simplify data collection in your JavaScript application with SurveyJS UI components. Create and style dynamic JSON-based forms using a fully integrated form builder that features a CSS theme editor and GUI for conditional rules and form branching.
Pricing:
- Open Source
- Freemium
- Free Trial
- €499 / One-off (1 developer license, unlimited form creators)
#Surveys #Marketing Tools #HR Tools 13 social mentions
Form.io Landing Page
6

Form.io

Combined FORM & API Platform for Developers
Pricing:
- Open Source
#Surveys #Survey Tools #Form Builder 5 social mentions
Headlessforms - Form Backend Landing Page
7

Headlessforms - Form Backend

Build high-quality HTML forms in minutes -- we have the Form Backend
Pricing:
- Open Source
- Freemium
- Free Trial
- $8 / Monthly
#Form Builder #Backend As A Service #Headless CMS
Endatix Landing Page
8

Endatix

Self-Hosted Alternative to SaaS Form and Survey Platforms
Pricing:
- Open Source
#Surveys #Survey Tools #Customer Feedback
Quill Forms Landing Page
9

Quill Forms

Typeform alternative for WordPress
Pricing:
- Open Source
- Freemium
- $69 / Annually (1 website)
#Surveys #WordPress #Form Builder 2 user reviews
Airform Landing Page
10

Airform

Functional HTML forms for Front-End Developers.
Pricing:
- Open Source
#CRM #Surveys #Form Builder 3 social mentions
Formbricks Landing Page
11

Formbricks

Open Source Survey and Experience Management Platform
Pricing:
- Open Source
- Freemium
- Free Trial
- €49 / Monthly (Unlimited surveys, Unlimited Team Members)
#Surveys #Open Source #SaaS 15 social mentions
Advanced Custom Fields Landing Page
12

Advanced Custom Fields

Custom field and custom content plugin for WordPress
Pricing:
- Open Source
#Surveys #WordPress #Form Builder