StreetComplete README

The project's README from github.com/streetcomplete/StreetComplete. As one markdown file: README.md.

StreetComplete

StreetComplete is an easy to use editor of OpenStreetMap data available for Android and iOS. It can be used without any OpenStreetMap-specific knowledge. It asks simple questions, with answers directly used to edit and improve OpenStreetMap data. The app is aimed at users who do not know anything about OSM tagging schemes but still want to contribute to OpenStreetMap.

StreetComplete automatically looks for nearby places where a survey is needed and shows them as quest markers on its map. Each of these quests can then be solved on site by answering a simple question. For example, tapping on a marker may show the question "What is the name of this road?", with a text field to answer it. More examples are shown in the screenshots below.

The user's answer is automatically processed and uploaded directly into the OSM database. Edits are done in meaningful changesets using the user's OSM account. Since the app is meant to be used on a survey, it can be used offline and is economic with data usage.

To make the app easy to use, quests are limited to those answerable by asking simple questions.

Screenshots

Download

Get it on Google Play Get it on F-Droid Download APK from GitHub Download on the App Store

Quests

There are quite a few different quest types now and more will be added over time. You can see a community-managed list of all quests in the OSM wiki.

FAQ

You can find a list of frequently asked questions in the wiki.

Contributing

This is an active open-source project, so you can get involved in it easily! You can do so without any programming or OpenStreetMap knowledge! Just choose a task that you like.

Here are a few things you can do:

Also, if you like StreetComplete, spread the word! ❤️

License

This software is released under the terms of the GNU General Public License v3.0 only.

Sponsors

nlnet
The NLnet foundation sponsored development on this app in four individual grants with funds from the European Commission:


GitHub Sponsors Liberapay Patreon
Many users are currently supporting this app through GitHub sponsors, Liberapay and Patreon. If you like the app, you can join them ☺️ to support the continued development and maintenance of the app.


JawgMaps
Since mid 2020, JawgMaps provides their vector map tiles service to StreetComplete for free, i.e. the background map displayed in the app.


Past Sponsors

German Federal Ministry of Education and ResearchPrototype Fund
Within the frame of Prototype Fund round 15 (March 2024 to August 2024), the German Federal Ministry of Education and Research sponsored Tobias Zwick to work on StreetComplete for iOS (see progress report)

Development on this app was also sponsored in round 8 (September 2020 to February 2021) of the Prototype fund, with focus on collecting more data points and on general improvements of this app.


OpenStreetMap foundation
In August 2020, the OpenStreetMap foundation funded the development of Map Maintenance with StreetComplete within the frame of the microgrants program.

StreetComplete (streetcomplete/StreetComplete)

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What is this?StreetComplete is an easy-to-use OpenStreetMap editor for Android and iOS that lets you improve map data by answering simple survey questions, without needing any OSM tagging knowledge.
Is this a full map editor like iD or JOSM, or something simpler?It is a simplified, quest-based editor: instead of editing raw OSM tags, it shows markers for nearby places where info is missing and asks a plain-language question like 'What is the name of this road?' with a text field.
How do I start fixing the map?Install the app on your Android or iOS device, sign in with your OSM account, and the app automatically shows quest markers near you on the map that you can tap and answer on site.
Do I need to know OSM tagging schemes to use it?No. The app is designed for people with zero OSM knowledge; it translates your plain answers into proper OSM edits automatically.
Is this meant to replace full OSM editors like JOSM?No, quests are intentionally limited to things answerable with simple yes/no or short text answers, so it won't let you do complex mapping edits — just targeted surveys.
Can I use it without an internet connection while surveying?Yes, it's built to work offline on site and to be economical with mobile data, syncing your answers to OSM when you're back online.
Where do my answers go?Your answers are uploaded directly to the OSM database under your own OSM account as proper changesets, not stored privately by StreetComplete.
What kinds of quests does it ask?Quests cover things like road names, shop opening hours, surface types, and other missing details near your location; there's a community-maintained list of all quest types on the OSM wiki.
Is the project community-funded or commercial?It's sponsored, not commercial: funders have included the NLnet Foundation, the German Prototype Fund, and JawgMaps, which provides free background map tiles.
Is iOS support as mature as Android?iOS support is newer; it was specifically funded through the Prototype Fund in 2024 to bring StreetComplete to iOS, implying it followed the longer-established Android version.
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