npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

@json-render/devtools

v0.18.0

Published

Framework-agnostic devtools core for json-render: event store, panel UI, picker, stream taps.

Readme

@json-render/devtools

Framework-agnostic core for the json-render devtools — vanilla TS panel UI, event store, DOM picker, and stream tap utilities.

Most users never import from this package directly. Pick the adapter that matches your renderer and drop the <JsonRenderDevtools /> component into your app:

See the devtools guide for the full walkthrough.

Installation

npm install @json-render/devtools

This package is pulled in automatically by every framework adapter. Install it directly only if you're building your own adapter or using the stream tap utilities on the server.

What you get

  • Event store — capped ring buffer with push, subscribe, snapshot, clear.
  • Panel — shadow-DOM-isolated drawer with six tabs (Spec, State, Actions, Stream, Catalog, Pick).
  • Stream taps — wrap pipeJsonRender / YAML transforms to mirror patches into the event store.
  • Picker — DOM overlay that maps clicked elements back to spec keys via data-jr-key.

Example: server-side stream tap

import { tapJsonRenderStream, createEventStore } from "@json-render/devtools";
import { pipeJsonRender } from "@json-render/core";

const events = createEventStore({ bufferSize: 1000 });

const tapped = tapJsonRenderStream(
  result.toUIMessageStream(),
  events,
);
writer.merge(pipeJsonRender(tapped));

License

Apache-2.0