Top 7 JavaScript Cartography Projects

Fantasy-Map-Generator

597 4,246 8.7 JavaScript

Web application generating interactive and highly customizable maps

Project mention: CC0-licensed fantasy map brushes based on historical cartography | news.ycombinator.com | 2023-12-21

Adding to the other answers, there are also -besides Photoshop, Gimp, etc- specialized tools to draw fantasy maps. The site mentions Wonderdraft [0], but there are a bunch of others though not all of them support using external brushes.
Some other tools in this space may be Watabou's tools [1], Azgaar's tools [2], Inkarnate [3], Mapforge [4], or quite a few more which you can find links to in this list [5]. Again: you could use these brushes with some of these; not all support external brushes.
[0] https://www.wonderdraft.net/
[1] https://watabou.github.io/
[2] https://azgaar.github.io/Fantasy-Map-Generator/
[3] https://inkarnate.com/
[4] https://www.mapforge-software.com/
[5] https://www.mapforge-software.com/links-to-map-making-apps/

uMap

14 1,007 9.9 JavaScript

uMap lets you create maps with OpenStreetMap layers in a minute and embed them in your site. (by umap-project)

Project mention: Anything you wish there was an open source solution for? | /r/selfhosted | 2023-05-16

Umap?

SurveyJS

surveyjs.io sponsored

Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
map33.js

1 420 0.0 JavaScript

A JavaScript library to make 3D maps with three.js.
bertin

2 292 6.7 JavaScript

A package to draw maps in javascript
openstreetmap-americana

8 155 9.4 JavaScript

A quintessentially American map style

Project mention: The current state of map design in OpenStreetMap | news.ycombinator.com | 2024-04-20

Nice for driving, but not for walking. Look how much pedestrian info is simply not rendered in my home area. Tons of stairs and walkways are not visible:
https://zelonewolf.github.io/openstreetmap-americana/#map=16...

Leaflet.RegularGridCluster

1 20 0.0 JavaScript

leaflet plugin that implements grid-style visualization and clustering method
open-source-exandria

6 10 1.4 JavaScript

A repository for fans of Critical Role to contribute to the data behind the interactive fantasy map for the show or copy it and make your own maps!
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).