Best Open Source Form Builders 2026

Form Builders

Form Builders Scientific/Engineering Clear Filters

Browse free open source Form Builders and projects below. Use the toggles on the left to filter open source Form Builders by OS, license, language, programming language, and project status.

AI-generated apps that pass security review
Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.

Try Retool free
MongoDB Atlas runs apps anywhere
Deploy in 115+ regions with the modern database for every enterprise.

MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.

Start Free
1

SITools2

SITools2 is a new CNES generic tool performed by a joint effort between CNES and scientific laboratories. The aim of SITools is to provide a self-manageable data access layer deployed on already existing scientific laboratory databases.

2 Reviews

Downloads: 1 This Week

Last Update: 2017-01-03
See Project
2

MEDILIG - Medical Life-Guard

EHR/EMR cross-platform electronic medical record application

EHR/EMR cross-platform software for the design, implementation and use of autonomous, open, database models for multilingual medical knowledge management systems from primary care to continuing care.

3 Reviews

Downloads: 0 This Week

Last Update: 2025-09-04
See Project
3

Project35

Project35 is a suite of software tools that generate forms based on XML schemas. Originally derived from the Pedro research project, the Project35 tools have been modified to support more production-level use cases, esp. in the developing world.

Downloads: 0 This Week

Last Update: 2014-05-29
See Project
4

Questionnaire

Questionnaire currently is a PHP API for the creation of web based data entry. XML file forms with question and database descriptions are used to generate forms. Answers are stored stored in an Access or MySQL database.

Downloads: 0 This Week

Last Update: 2013-04-23
See Project
Full-stack observability with actually useful AI | Grafana Cloud
Our generous forever free tier includes the full platform, including the AI Assistant, for 3 users with 10k metrics, 50GB logs, and 50GB traces.

Built on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.

Create free account