# @flowmap.gl/data Latest version **9.4.0** (published 2026-06-16) · Apache-2.0 license · 0 weekly downloads ## Install ```sh npm install @flowmap.gl/data pnpm add @flowmap.gl/data yarn add @flowmap.gl/data bun add @flowmap.gl/data ``` ## Health **Score 60/100 (C)** — status: active. Positive: has types; esm support; no vulnerabilities; high maintenance score. Warnings: low downloads. ## Facts | | | |---|---| | Version | 9.4.0 | | Published | 2026-06-16 | | First published | 2021-12-20 | | Weekly downloads | 0 | | License | Apache-2.0 | | TypeScript types | bundled | | Module format | ESM + CommonJS | | Dependencies | 11 | | Unpacked size | 611.7 KB | | Known vulnerabilities | 0 | | Install scripts | no | | GitHub stars | 141 | | Author | Ilya Boyandin | | Maintainers | ilyabo, fnberta | ## Links - npm: https://www.npmjs.com/package/@flowmap.gl/data - Repository: https://github.com/visgl/flowmap.gl - Homepage: https://github.com/visgl/flowmap.gl#readme - Issues: https://github.com/visgl/flowmap.gl/issues - npm.io page: https://npm.io/package/@flowmap.gl/data ## Dependencies (11) - [d3-geo](https://npm.io/package/d3-geo.md) ^3.1.1 - [kdbush](https://npm.io/package/kdbush.md) ^4.0.2 - [d3-time](https://npm.io/package/d3-time.md) ^3.1.0 - [d3-array](https://npm.io/package/d3-array.md) ^3.2.4 - [d3-color](https://npm.io/package/d3-color.md) ^3.1.0 - [d3-scale](https://npm.io/package/d3-scale.md) ^4.0.2 - [reselect](https://npm.io/package/reselect.md) ^5.1.1 - [seedrandom](https://npm.io/package/seedrandom.md) ^3.0.5 - [d3-interpolate](https://npm.io/package/d3-interpolate.md) ^3.0.1 - [d3-time-format](https://npm.io/package/d3-time-format.md) ^4.1.0 - [d3-scale-chromatic](https://npm.io/package/d3-scale-chromatic.md) ^3.1.0 ## Recent versions - 9.4.0 (latest) — 2026-06-16 - 8.0.0-alpha.27 (next) — 2023-10-02 - 9.3.0 — 2026-05-07 - 9.2.0 — 2026-04-16 - 9.1.0 — 2026-04-13 - 9.0.0 — 2026-04-11 - 8.0.3 — 2026-02-11 - 8.0.2 — 2024-03-06 - 8.0.1 — 2023-10-09 - 8.0.0-alpha.26 — 2023-09-16 - 8.0.0-alpha.25 — 2022-06-13 - 8.0.0-alpha.24 — 2022-05-29 - 8.0.0-alpha.23 — 2022-03-17 - 8.0.0-alpha.22 — 2022-03-17 - 8.0.0-alpha.21 — 2022-02-15 - … 22 more at https://npm.io/package/@flowmap.gl/data/versions ## README # Flowmap.gl flowmap-gl [Flow map](https://en.wikipedia.org/wiki/Flow_map) drawing layer for [deck.gl](http://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](https://flowmap.blue/) and [Flowmap City](https://flowmap.city/) for an easy way of publishing flow maps (no programming skills required). Run the [LIVE EXAMPLE](https://flowmap-layer-demo.netlify.app) or check the source code of the following examples: - [Minimal Pure js example](https://github.com/ilyabo/flowmap.gl-purejs-example) [![Open in StackBlitz](https://developer.stackblitz.com/img/open_in_stackblitz_small.svg)](https://stackblitz.com/github/ilyabo/flowmap.gl-purejs-example?file=main.js) - [React example](./examples/react-app) - [React worker example](./examples/react-worker-app) - [Svelte example](./examples/svelte-app) ## Development Building flowmap.gl locally from the source requires Node.js. We use [yarn](https://yarnpkg.com/en/docs/install) to manage the dependencies. ```bash # 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](https://developer.stackblitz.com/img/open_in_stackblitz_small.svg)](https://stackblitz.com/github/visgl/flowmap.gl?file=examples%2Freact-app%2Fsrc%2FApp.tsx) ## 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](CODE_OF_CONDUCT.md) when contributing to flowmap.gl. Also, check out [vis.gl developer process](https://www.github.com/visgl/tsc/tree/master/developer-process). ## Maintainers - [Ilya Boyandin](https://github.com/ilyabo) – ilya@boyandin.me ## License Copyright (c) Flowmap.gl contributors Copyright (c) 2018-2020 Teralytics SPDX-License-Identifier: Apache-2.0 [Full-text license](LICENSE) ## Acknowledgements The project was [originally developed at Teralytics](https://github.com/teralytics/flowmap.gl). Thanks to [Philippe Voinov](https://github.com/tehwalris) for his help with the first version of `FlowLinesLayer`, to [Nikita Rokotyan](https://github.com/rokotyan) for his advice on implementing `AnimatedFlowLinesLayer` and to [Xiaoji Chen](https://github.com/pessimistress) for her help with [deck.gl](http://deck.gl). --- _Source: https://npm.io/package/@flowmap.gl/data · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._