Observed arrival · 2026-10-03

A browser workbench for administrative boundaries

topo-tools.org Visit website

Editorial interest 82/100 Selection signal · not a rating of the site

A suite of geospatial tools for cleaning, matching, coding, and validating administrative boundary data.

Landing page captured for the 2026-10-03 issue.

For: GIS teams preparing administrative boundary releases
Worth noticing: Several checks are explicitly read-only, while separate cleanup tools can modify geometry, names, or codes.

Field notes

The workflow includes separate detection and repair tools: for example, one tool reports topology gaps and overlaps without changing the layer, while another can clean them using an adjustable gap-width threshold. Schema mapping can produce a crosswalk CSV alongside the renamed layer, and the changelog tool distinguishes splits and merges from unchanged or modified units. The page attributes local processing to WebAssembly running in the browser.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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