Platform for visual reactive programming

Create for the web on the web.

takes the pain out of using spreadsheets and notebooks at scale.
Try Ellx now Learn more
  • Use a cloud-backed or your local file system
  • Explore community projects, libraries, and components
  • Fork to tinker and contribute
  • Import any NPM package
  • Export symbols to use them in reactive formulas
  • Organize your code
  • Define reactive logic
  • Tell a story
screen 1 formula for 1

is a new generation
  • notebook
  • spreadsheet
  • app builder

Excel
Google Sheets
Browser native
Local or on-premise development
Collaboration and ecosystem
Source control friendly
Separation of business logic and presentation
Integrated deployment tools
Testability
Async reactivity
Here are some things built with
  • Dashboards
  • Charts
  • Documentation and tutorials
  • UI components and libraries
    • lib Ellx standard library of UI components, utilities and framework wrappers (Svelte, React, Vue)
    • quiz-maker Example Svelte component for building quizzes
    • npm package search Binding for npm search API and Ellx standard library input
  • Generative art and visualizations
    • Clifford attractor Modified Clifford attractor implementation in WebGL
    • 10PRINT Canonical generative art example, 10PRINT program printing random "\" or "/"
We would love to feature your project on this page. Get in touch.
Pricing
Personal use
Free forever!
  • Unlimited number of public and private projects
  • Build interactive reports, dashboards, data visualizations, or anything really...
  • Publish your projects as independent websites
Pro
$8 per month
  • Sync projects with Github
  • Build libraries, reusable components, or fully fledged web apps
  • Email support
  • Discounts on educational packages (coming soon)
Enterprise
Let's talk
  • On-premise installation
  • Dedicated support
  • Engineer training
Contact sales
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