How to validate GeoJSON?

Question

I have a small script that I'm using to generate GeoJSON data from a data format not currently supported by GIS software.

I would like to validate the output, but when I use ogr2ogr to read it, it doesn't give me any helpful information about what aspects, lines, or characters contained invalid data.

Is there a decent GeoJSON validator somewhere, or a good method of validating GeoJSON data with OGR?

EDIT: I am not looking for JSON validators or the GeoJSON spec. I've seen and used both to get to this point, but OGR still returns an error.

http://gis.stackexchange.com/questions/11204/geojson-geocouch-questions-from-a-newb — Mapperz, Apr 18 '12 at 20:48

score 29 · Accepted Answer · answered Oct 06 '12 at 04:42

29

5 months late, but I made this thing that should help http://geojsonlint.com/.

answered Oct 06 '12 at 04:42

Jason

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I use your service all the time.. However, the error ";Line 1: Polygons and MultiPolygons should follow the right-hand rule" should not occur. – Jeryl Cook Sep 23 '17 at 15:10
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This is no longer available. – geocodezip Apr 29 '19 at 21:39
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@geocodezip Seems to be up and running as far as I tell, and working great! – lambshaanxy Nov 25 '19 at 06:39
does this have an npm library? – Kat Lim Ruiz Jan 25 '21 at 00:00

score 4 · Answer 2 · answered Jul 28 '13 at 05:07

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If you prefer JavaScript there are now two options

answered Jul 28 '13 at 05:07

null_radix

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both are down ... – Kat Lim Ruiz Jan 25 '21 at 00:00

score 2 · Answer 3 · edited Apr 13 '17 at 12:34

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I have explained it before in this post.

The differences between JSON and GeoJSON are all about spelling. You can add more definition if you want. I don't think it is very important if you do not take part in the JSON spec for GeoJSON... there is no limit for a JSON object; the only important thing is that your JSON must be valid for correct usage.

You can check whether or not your GeoJSON file is valid with JSONLint which is a JSON Validator...

and you can check against the GeoJSON spec here.

I hope this helps you.

edited Apr 13 '17 at 12:34

Community

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answered Apr 18 '12 at 21:06

urcm

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The GeoJSON spec is at geojson.org - you linked to GeoJSON CSS, an unofficial extension. – tmcw Sep 17 '12 at 00:14

score 2 · Answer 4 · answered Aug 21 '21 at 16:47

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This GeoJSON validator is extremely useful in parsing different types, but also helpfully points out exactly where the errors lie.

answered Aug 21 '21 at 16:47

saze

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score 2 · Answer 5 · answered Sep 07 '21 at 16:41

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I don't have enough reputation to reply to comments, but apparently enough to add an answer. Go figure. For the links that @null_radix provided, here are the corresponding npm links that should still be valid:

The geojsonhint has been deprecated, but, as of the time of this comment, was still getting around 54K downloads per week, while geojson-validation was getting 15K.

answered Sep 07 '21 at 16:41

Patrick Poon

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FYI to anyone looking at these. They are for the old (deprecated) GeoJSON spec, not rfc7946. – Stonetip Mar 25 '22 at 18:10
@mapbox/geojsonhint is updated and current for the current spec. – Steve Bennett Jul 12 '23 at 07:15

How to validate GeoJSON?

5 Answers5

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