Pre-alpha. First usable release planned for late 2026.
Browser interfaces · Python & JavaScript
From a simple page
to a working application.
Gramlot is a framework for building browser interfaces in Python or JavaScript. Describe your page, connect its fields to data, and let the interface respond as that data changes.
For developers exploring forms, data-driven pages and reusable interface components.
Try it first
Real examples. Different ways to explore.
Use a small app, compare how it is written, or experiment with visual composition. Here is what you will find behind each link.
Rosetta · Online learning labOne example.
Five ways to build it.
Rosetta puts the same small interface in Gramlot Python, Gramlot JavaScript, React, Vue and NiceGUI. Switch between implementations and see the running example beside its actual source.
Start with Hello World, then explore input fields and data binding. In the Gramlot JS version, edit the recipe and press Run to try your changes.
Opens rosetta.gramlot.org · Requires a connection · Edits are temporary
Personal budget · Downloadable appA small spreadsheet you can keep.
Edit monthly income and expenses in aligned rows. Category totals and the remaining balance update together.
Download a single HTML file to use offline, without a server. Export your amounts to JSON to keep them between sessions; there is no automatic saving.
Try the budget & download
Visual editor · ExperimentalCompose a page on a live canvas.
Add widgets, adjust their attributes and inspect the page’s Source and Data. See how visual changes become part of the interface.
An early experiment in graphical authoring. Changes are temporary; project saving and export are not available yet.
Explore the visual editor
Where we are today
Open to exploration.
Still taking shape.
Gramlot is pre-alpha. The first usable release is planned for late 2026. These examples let you explore the direction today; APIs and tools can still change.
Follow the project’s development on GitHub. The gallery, Rosetta and the visual editor will grow alongside the framework.
Follow Gramlot on GitHub
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