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

@maksudcs/flowmap.gl

v1.0.0

Published

Flow map drawing layer for Deck.gl

Readme

Flowmap.gl

Flow map drawing layer for deck.gl. Can be used for visualizing movement of people (e.g. migration) or objects between geographic locations. The layer is rendered in WebGL and can handle large numbers of flows with a relatively good rendering performance.

Try FlowmapBlue and Flowmap City for an easy way of publishing flow maps (no programming skills required).

Run the LIVE EXAMPLE or check the source code of the following examples:

Development

Building flowmap.gl locally from the source requires Node.js. We use yarn to manage the dependencies.

# Install dependencies
yarn

# Add your Mapbox token to .env (needed for background map)
cd examples/react-app
cp .env.example .env

# Start example app in dev mode
cd ../..
yarn start

Open in StackBlitz

Contributing to flowmap.gl

Thanks for taking the time to contribute!

PRs and bug reports are welcome. Please be mindful of and adhere to the Contributor Covenant's Code of Conduct when contributing to flowmap.gl. Also, check out vis.gl developer process.

Maintainers

License

Copyright (c) Flowmap.gl contributors
Copyright (c) 2018-2020 Teralytics
SPDX-License-Identifier: Apache-2.0

Full-text license

Acknowledgements

The project was originally developed at Teralytics. Thanks to Philippe Voinov for his help with the first version of FlowLinesLayer, to Nikita Rokotyan for his advice on implementing AnimatedFlowLinesLayer and to Xiaoji Chen for her help with deck.gl.