Help to improve the OpenStreetMap with StreetComplete by completing quests which consists of simple questions about the world around you.
- Map Service
- Free • Open Source
- Android
- Android Tablet
- OpenStreetMap
- F-Droid



Help to improve the OpenStreetMap with StreetComplete by completing quests which consists of simple questions about the world around you.



Editable online catalog aiming to archive every published book, offering user-contributed entries, metadata, digital lending, and free access to over one million Public Domain titles.

Real-time navigation with community-reported traffic and hazard alerts, voice guidance, and map editing, ensuring a smoother drive every day.

Marketplace with 1.8M apps, secure payment options, curated expert picks, high privacy standards, and content moderation across 175 regions and 40 languages.

Discogs is a crowdsourced music database and marketplace. Discover music, buy and sell music with collectors in the Marketplace in all physical formats.

My goal is to start a community-driven language-learning platform that gives its users and contributors a way to influence its future and adapt it to special requirements.


MAPS.ME offers the quickest offline maps of all the countries of the world. Travel with full confidence: wherever you are, MAPS.ME addresses all your offline mapping needs.



Wikibooks is a Wikimedia community for creating a free library of educational textbooks that anyone can edit.

PCGamingWiki aims to list fixes and workarounds for every single PC game.

It's quick, easy, free & fast - just put your open source project's homepage, developer blog or web experiment into a Git repository at Codeberg, and we'll do the rest.

Offers a Google Maps–style interface with clickable OpenStreetMap points, editing tools, vector maps with 3D tilting, public transport data, and mobile PWA support.

JOSM is an extensible editor for OpenStreetMap (OSM), written in Java.

Check if a website is safe before you reach it via browser extensions, mobile app and API. Ratings on adult content, scams, malware, etc.

FossHub is one of the few download sites that list only clean software. Malware or bundled software are not accepted. Software titles are scanned with multiple antivirus engines before the download. The download speed is also fast.

Wikimedia Commons is a media file repository making available public domain and freely-licensed educational media content (images, sound and video clips) to everyone, in their own language.

Inventaire is a book sharing webapp, inviting everyone to make the inventory of their books, define what they want to do with it (giving, sharing, selling), as well as who should be able to see it (shared publicly, or only visible to your friends and groups).

At its core, Tatoeba is a large database of example sentences translated into several languages. Search example sentences translated into many languages. Add and translate your own sentences. It's collaborative, open, free, and even addictive.

Localization platform enhanced by AI for flexible translation of mobile, web & desktop apps, games & help desks, and more. Make your localization process more efficient and improve your workflow with 600+ Crowdin apps and connectors.

Poedit is cross-platform gettext catalogs (.po files) editor. It is built with wxWidgets toolkit and can run on any platform supported by it (although it was only tested on Unix with GTK+ and Windows). It aims to provide more convenient approach to editing catalogs than...

Extensive online platform offering over 1.3 million icons, illustrations, photos, AI-powered editing tools, royalty-free music, custom elements, and integration with design software.

Wallhaven is a site created by and for people who like wallpapers, as well as a place where anime fans can be treated mostly like normal human beings.

DeArrow is an open source browser extension for crowdsourcing better titles and thumbnails on YouTube. The goal is to make titles accurate and reduce sensationalism. No more arrows, ridiculous faces, and no more clickbait.
