Store and track changes to your geo-data
Mergin is a web platform for storage and synchronisation of geospatial projects across multiple users and devices (desktop and mobile). The platform is especially useful when you need:
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Mobile data collection. If you need to capture location of assets (and their attributes) or update an existing database.
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Data sharing. No complicated setup of access by IT admins to get your data to colleagues or clients. Set up permissions and send invites with few clicks.
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Offline access. Work with data with no interruption even without constant Internet connection - sync any changes when you are back online.
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Collaborative editing. No more problems dealing with multiple copies of the same dataset in different versions - all changes are automatically consolidated in one place.
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Audit changes. Knowing who has changed what and when in a database is often important - Mergin keeps track of the history and allows to go back if needed.
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No coding required. Everything can be set up with no knowledge of programming.
Mergin organises all data in projects. A project in Mergin is a directory containing various data files - GeoPackages, QGIS project files, documents, pictures and more. As soon as a project is uploaded to Mergin, it can be easily accessed directly from the web, from QGIS or from iOS/Android via Input app.
Mergin web
 Dashboard |
 Project files |
 Project version history |
 Project settings |
Mergin in Input app
Mergin in QGIS
- 🌍 Store data - GeoPackages, QGIS project files, GeoTIFFs, pictures or any other data easily
- 📱 Mobile devices - Great for working on field surveys, thanks to Input app based on QGIS, for iOS and Android
- 🌟 QGIS integration - Mergin plugin is available to help with project setup and seamless syncing within QGIS
- 👥 Multi-user editing - Changes to vector/attribute data from multiple users are automatically merged
- 📖 Data versioning - Keeping history of all changes, allowing to go back if needed
- 🔌 Offline editing - Clients do not need to be online all the time - only when syncing changes
- 🌱 Sharing with collaborators - Projects can be shared with other team members
- 🏰 Granular permissions - Decide who can read, write or manage projects
- 🌈 Web interface - Simple user interface to view and manage projects
- ⚡️ Fast - Efficient sync protocol transfering data between clients and server
- 🧑💻 Developer friendly - Mergin is open platform. CLI tools and client libraries available for Python and C++
- 💽 Sync with database - Supporting two-way sync of data with PostGIS using mergin-db-sync tool
- 👷♀️ Work packages - Split main database to smaller chunks for teams using mergin-work-packages tool
Mergin offers a unique combination of features that other tools do not provide out of the box:
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relational databases (such as PostGIS or Oracle) are great for keeping a central repository of spatial data, but offline access, versioning and sharing outside of a single organisation are complicated to set up.
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traditional storage products (like Dropbox or Google Drive) are great for storage of large amounts of data (pictures/videos) and offering offline access, but concurrent access to data (e.g. a single vector layer) is not going to work well.
Try Mergin at https://public.cloudmergin.com/ - the SaaS service run by Lutra Consulting, the makers of Mergin.
Run Mergin locally is easy. Adjust configuration in docker-compose.yml, e.g. replace 'fixme' entries
and run with docker-compose:
$ docker-compose up
$ docker exec -it mergin-server flask init-db
$ docker exec -it mergin-server flask add-user admin topsecret --is-admin --email admin@example.com
$ sudo chown -R 901:999 ./projects/
$ sudo chmod g+s ./projects/Projects are saved locally in ./projects folder.
For user help and documentation, visit https://help.cloudmergin.com/ If you'd like to contribute and improve the documentation visit https://github.com/lutraconsulting/mergin-docs
For the Input mobile app, visit https://inputapp.io/ - with more documentation at https://help.inputapp.io/
If you need support, a custom deployment, extending the service capabilities and new features do not hesitate to contact us on info@lutraconsulting.co.uk
Contributions are welcome!
More information for developers can be found in the dedicated development page.
Client side modules:
More related tools:
- mergin-db-sync - set up two-way sync between Mergin and PostGIS database
- mergin-work-packages - split data for teams to work packages
Learn more about geodiff - the low-level library providing seamless merging of changes from multiple sources.
Mergin is open source and licensed under the terms of AGPL licence.