Introduction

Overpass Ultra is a reimagining of overpass turbo powered by MapLibre GL JS. Like overpass turbo, it is a web-based data filtering & visualization tool for OpenStreetMap.

Thanks to MapLibre GL JS's excellent large GeoJSON support, Overpass Ultra can visualize larger datasets than overpass turbo with ease.

More information about how to write Overpass queries can be found in the OSM wiki.

Live Mode

In Live Mode, Overpass Ultra will automatically make Overpass API queries as you pan & zoom the map. Like raster & vector tiles in Leaflet/Mapbox/MapLibre/OpenLayers/etc, the current map view is divided into the Slippy Grid. Then Overpass API requests for the bbox of each slip tile is made serially as to avoid over-loading the API. The zoom level at which tiles are loaded can be defined in the settings.

MapLibre GL JS Styling

In place of overpass turbo's MapCSS support, Overpass Ultra leverages the MapLibre GL JS style specification to enable customized result visualization.

You can specify an URL to your style.json in the settings. It should include an empty GeoJSON source named OverpassAPI and any layers you wish to create from Overpass data. This source will be updated by Overpass Ultra with the query result as GeoJSON data.

See the following styles for examples:

• /style.json - Overpass Ultra's default style. OSM Vector Tiles with Overpass layers styled simlar to overpass turbo
• /style-cycleways.json - A style highlighting bicycle lanes.

Overpass Queries

Overpass API allows to query for OSM data by your own search criteria. For this purpose, it has a specifically crafted query language.

In addition to regular Overpass API queries one can use {{bbox}} to specify the bounding box coordinates of the current map view following handy shortcuts in overpass turbo:

About

Overpass Ultra is built by Daniel Schep.

Feedback, Bug Reports, Feature Requests

Overpass Ultra is still in early stages of development and should be considered experimental.

If you would like to report a bug or provide other feedback, please do so in the project's Issue Tracker

Source Code

The source code of this application is released under the MIT license.