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Catalogue/Apps/Modulatejs

Modulatejs

freddieiboy · App

ModulateJS is a language for describing how a user interface should feel, meant to be written by a person or by an AI model. A short script places pieces, ties them to drivers such as tap, drag and scroll, and springs between two states. Because the code lives in the URL fragment there is no login, no backend and nothing stored, so a prototype can be shared as a link that runs on your phone. An editor mode follows a file on disk, and an MCP mode lets an agent use it.

Written by ooruby from the README of modulatejs 0.29.0.

Not claimed by its maker. Is this yours? Prove it and answer the findings

Why it's useful

People and AI models can write UI interactions in the same short language and try them on a phone through a link.

What you could do with it

  1. 1Write a like button that pops on tap and open the link on your phone to try it.
  2. 2Ask your AI model to read the spec and write a prototype, then have it hand you a link.
  3. 3Run the editor on a file while Claude Code edits it and watch the page and your phone follow.

Written from its documentation: what it says it can do, not what our checks found.

MOappContent

Maintenance

Not measured

No release date is on record for this package yet. The nightly publisher check records one as it reaches each npm package, about once every ten nights.

Release activity only: it says nothing about quality or safety, and a finished small package can be fine without releases. How it is measured

Not yet tested
Data handling disclosed
finding
no statement of what it reads, writes or sends (README.md)

Published because it was found. A finding is information about where the limits are, not a verdict that the software is unsafe.

What this does not cover

  • ·Everything. Treat it as you would software from anywhere else.

Receipt history: every signed receipt for every version of this listing, and what changed between them.

In its maker's words

ModulateJS is markdown for UI interactions: a consistent language for how UI can feel, that a human or an LLM can write. Comprehensive enough that custom JavaScript is never necessary. Speed, fidelity and control. Fifteen lines, a link, and it's on your p

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How far this has been checked

Static scanned

What it establishes
Its published package, or for a hosted server its source repository at a recorded commit, was read file by file, without running it, by every check in our current scan.
What it does not
How it behaves when it runs, or anything the scan does not read yet: several rubric checks, the repository's history, and compiled code in folders named dist or build. For a hosted server, that the endpoint runs the code that was read. The ooruby Index sets out exactly what was read.
Exactly what was read
Version 0.29.0, the file with digest sha512-b8VT00TfeL+A1ZuIQMWUI3XzFAPhdvuOTNs/YOFnXIaM8J0Upzba8wEjabK87lU265jaw9hKD1xbx67NHKFHWQ==, as the registry publishes it. A published version cannot be replaced, so this names the same bytes for anyone who checks.
Authentication
Runs locally. No hosted endpoint is listed for this package. You run it on your own machine, so there is no endpoint of ours to authenticate against.
How the rungs work

Adding it

Run it with:

npx -y -p modulatejs@0.29.0 modulate

Pinned to 0.29.0, which is the version the findings above were found in. Drop the version to take whatever is newest, and the report on this page stops describing what you installed.

Where this came from

Registry
npm
Package
modulatejs
Version read
0.29.0
Resolved
2026-10-10
Open the source(opens in a new tab)

Built from source, attested

npm publishes a signed statement that this exact package was built from the repository below, at this commit. It is verifiable without taking our word for it.

Repository
github.com/freddieiboy/modulatejs
Commit
fc2d0d70d8eb
Built by
github.com/actions/runner/github-hosted
Registry publish attestation
signed by npm · 2026-10-10
Checked
2026-10-10

The badge, if this is your listing

It renders the current rung (static scanned) and links back here, where what that does and does not establish is one click away. It updates itself as the evidence deepens.

[![ooruby: static scanned](https://ooruby.com/api/badge/modulatejs)](https://ooruby.com/market/modulatejs)

About this listing

Kind
App
Category
Content
Pricing
Free
Sandbox
No
Hosted
No
Updated
2026-10-06
Price
Free
Get it freeVisit maker
Rating
no reviews yet
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Verification records what our published tests found on a specific version at a specific date. It is not a warranty, and it does not certify that software is free of defects.