

REI3
REI3 is an open low-code application platform. Free for individuals and organizations, anyone can use REI3 to rapidly build multi-user applications.
Cost / License
- Free
- Open Source (MIT)
Platforms
- Windows
- Linux
- Online
- Self-Hosted
Features
Properties
- Privacy focused
- Lightweight
- Clean design
Features
- Import CSV Data
- Multiple languages
- Portable
- Technical versatility
- Ad-free
- End-to-End Encryption
- Subtasks
- Calendar Integration
- Recurring Tasks
- Kanban Board
- Works Offline
- Gantt-charts
- No registration required
- Two-factor Authentication
- No Tracking
- Dark Mode
- Shared Folders
- Reminders
- Drag and Drop
- Data export/import
- Workflow Automation
REI3 News & Activities
Recent News
- Fla published news article about REI3
REI3.11 update: Global Search, OpenID connect, and improved file handlingREI3.11 introduces a global search feature, letting users query data across all applications from a...
- Fla published news article about REI3
REI3.10 launches with major updatesREI3.10, the latest REI3 update, is out now featuring an extensive array of enhancements targeted a...
Recent activities
What is REI3?
Free yourself from walled gardens and cloud-only SaaS offerings. REI3 enables powerful low code applications, selfhosted in the cloud or on-premise. Create and then use, share or even sell your REI3 applications.
A wide range of publicly shared applications are also available, installed with a single click. Track employee time, manage tasks, control assets, manage requests, safely store passwords and more with ready-to-use REI3 applications.
REI3 comes with a large amount of features for small or more complex software requirements:
- Turnkey solution with integrated database and backups for smaller teams.
- Optimized for different screen sizes, installable on mobile devices as well.
- Many input & presentation options, including forms, calendars, charts, color inputs, file managers, Gantts and much more.
- Powerful access management with control over individual records if needed.
- Front- & backend functions to control data, apply business logic or adjust forms dynamically.
- Functions for modern end-to-end encryption (E2EE).
- Freely configurable REST APIs.
- CSV imports and exports.
- Email processing for incoming and email generation for outgoing messages.
- PDF generation from data inside your applications.
REI3 is a free and open source low-code platform with community as well as enterprise support options, where desired.









Comments and Reviews
Open Source, selfhosted
Very well thought-out and flexible. A real game changer
It's perfect for database-related apps. The structure is very well thought-through, and all kinds of relations and queries are possible.