Mapshaper

Edit, simplify and convert geographic data such as Shapefile, GeoJSON and TopoJSON in the browser.

Artifact by Matthew Bloch

IndexedOpen source★ 4,200Data toolsNo sign-up

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Opens mapshaper.org in a new tab. Nothing to install.

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You provide: Shapefile, GeoJSON, TopoJSON, KML or CSV files
You get: Simplified or converted geodata file
Account: No sign-up needed
AI: No AI: a plain tool
Your input: Not stated: check the tool's privacy notes before using private data
Price: Free to use
Made with: Open-source web app
Source: Open source
Link check: Answered on Oct 31, 2026

About

Mapshaper is an open-source web app in the data tools category (geospatial conversion). It opens in your browser, so there is nothing to install. You provide shapefile, GeoJSON, TopoJSON, KML or CSV files and get simplified or converted geodata file. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (mbloch/mapshaper).

Category: Data tools · geospatial conversion

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Stars: 4,200

Details

Auth: No auth
License: Open source
Repository: github.com/mbloch/mapshaper
Website: mapshaper.org/
First seen: Oct 31, 2026
Last checked: Oct 31, 2026
Source: GitHub

Cite this page

Mapshaper: free online tool. Agent Mart. https://agentmart.dev/artifacts/mapshaper (last updated 2026-10-31)