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Top 10 HTML Map Projects
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markwhen
Make a cascading timeline from markdown-like text. Supports simple American/European date styles, ISO8601, images, links, locations, and more.
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MapML-Specification
Map Markup Language is hypertext for Web maps, like HTML is hypertext for Web pages https://maps4html.org/MapML-Specification/spec/
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us_diocese_mapper
This project shows how to use Python to create a map of Latin Rite Catholic dioceses, provinces, and cathedrals within the United States.
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RandomStrangestLocations
When you press the button on this site, it takes you to interesting/funny/mystery places on google maps!
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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).
HTML Maps discussion
HTML Maps related posts
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My Life in Weeks
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Show HN: Ultra-portable Gantt chart tool
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Timemap.org – Interactive Map of History
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Show HN: Markwhen: Markdown for Timelines
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Other country maps
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Progress report on my 1947 game [update #3]
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US Elevation Tiles [OC]
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A note from our sponsor - SaaSHub
www.saashub.com | 18 Jul 2026
Index
What are some of the best open-source Map projects in HTML? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | markwhen | 4,842 |
| 2 | geoblender | 1,839 |
| 3 | open-tacos | 218 |
| 4 | osmic | 121 |
| 5 | MapML-Specification | 58 |
| 6 | OSM-Garmin-Maps-by-VasaM | 30 |
| 7 | us_diocese_mapper | 13 |
| 8 | RandomLocation | 10 |
| 9 | RandomStrangestLocations | 7 |
| 10 | notes.trustroots.org | 6 |
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