# Install topojson-simplify with npm

Topology-preserving simplification and filtering for TopoJSON. Version 3.0.3 via npm; verified 2019-09-05.

## Install

```sh
sudo av install npm:topojson-simplify
```

Additional install commands:

### Portable and language managers

- npm (100%):

```sh
npm install -g topojson-simplify
```

  Evidence: local npm package metadata

## Package facts

- **Package key:** npm:topojson-simplify
- **Package manager:** npm
- **Package manager page:** <https://www.npmjs.com/package/topojson-simplify>
- **Version:** 3.0.3
- **Source summary:** Topology-preserving simplification and filtering for TopoJSON.
- **Homepage:** <https://github.com/topojson/topojson-simplify>
- **Repository:** <https://github.com/topojson/topojson-simplify>
- **Upstream docs:** <https://github.com/topojson/topojson-simplify>
- **License:** ISC
- **Source archive:** <https://registry.npmjs.org/topojson-simplify/-/topojson-simplify-3.0.3.tgz>
- **Issue tracker:** <https://github.com/topojson/topojson-simplify/issues>
- **Published:** 2019-09-05T17:11:53.242Z
- **Last updated:** 2019-09-05T17:11:53.242Z
- **Generated:** 2026-08-04T22:13:35+00:00

## Executables

- toposimplify (cli)
- toposimplify (alias)

## Dependencies

- commander
- topojson-client

## Build dependencies

- eslint
- rollup
- rollup-plugin-terser
- tape

## Install behavior

- Post-install hook: not defined
- Bottle: not available

## Freshness

- Page generated: 2026-08-04
- Package-manager version: 3.0.3
- Package-manager updated: 2019-09-05
- Local data: ok
- Upstream repository: https://github.com/topojson/topojson-simplify
- warning: The package-manager record has not been updated in over a year.
- info: No cached GitHub release or tag data was available.

## Security Notes

No matching local secret-handling manifest was found for topojson-simplify. Package metadata is still published here so future coverage has a stable package URL.


## Source Database Details

- **Source Database:** npm registry
- **Dist Tags:** Latest: 3.0.3
- **Version Count:** 6
- **Maintainers:** mbostock
- **Author:** Mike Bostock
- **Publisher:** mbostock
- **Integrity:** sha512-V+pBjLVzSQ3+hSOxBiV01OVXgFiCmMO8ia3huxKEyIMTC1ApQHBcdXdOqcQ6U2JJJD31TZduwY6KyF15R8sUgg==
- **Shasum:** 668de0ca7ab36797002087190c2222f938af2ab2
- **Unpacked Size:** 50,556
- **File Count:** 0
- **Created At:** 2016-11-03T01:01:51.324Z
- **Latest Published At:** 2019-09-05T17:11:53.242Z
- **Modified At:** 2022-06-27T18:40:49.890Z


## Related links

- [Database and data packages](https://pkg.so/database-data-tools/) - Matched curated package taxonomy and local package facts.
- [topojson-server](https://pkg.so/npm/topojson-server/) - Package names and metadata indicate a similar tool family. Shared terms: cli, commander, data, geojson, geospatial.
- [simplify-geojson](https://pkg.so/npm/simplify-geojson/) - Local package facts share a topical domain. Shared terms: cli, data, geojson, geospatial, serialization.
- [tokml](https://pkg.so/npm/tokml/) - Local package facts share a topical domain. Shared terms: cli, data, geojson, geospatial, serialization.

## Sources

- pkg.so package database
- package-page enrichment
- package version freshness
- pkgdb category and tag curation
- package relationship graph
- cross-ecosystem install command graph