MBTiles

MBTiles is a file format for storing map tiles in a single file. It is, technically, a SQLite database. Latest format specification as of Feb 2018 is 1.3.

Serving MBTiles

Since the only qualification for implementing languages is basic SQLite support, the logic is easily ported. A list of implementations is maintained by the project.

A simple PHP MBTiles Server script for serving image tiles only: https://github.com/asd20752/PHP-MBTiles-Server
A more sophisticated PHP TileServer supporting UTFGrid & TileJson: https://github.com/infostreams/mbtiles-php
With Apache, you can serve tiles from multiple MBTiles with a mod_mbtiles module: https://github.com/systemed/mod_mbtiles
Serving and unpacking MBtiles using Elixir and Phoenix https://github.com/dkuku/tile_server
Demo: https://blog.thematicmapping.org/2012/11/exploring-mapbox-stack-mbtiles-tilejson.html
If you need more performance there is also a node.js server for image tiles only. https://github.com/asd20752/node-mbtiles
QGis can serve a project that has a MBTiles layer: https://docs.qgis.org/latest/en/docs/server_manual/index.html

Data Download

MBTiles with OSM data for analysis are available from https://osmlab.github.io/osm-qa-tiles/ , these are provided by the Humanitarian OpenStreetMap Team and updated weekly. The planet, as well country extracts are available. These tiles were initially provided by Mapbox and made available daily.

The BBBike extract service offers mbtiles for an area of your choosing.

Generating MBTiles

Vespucci's documentation page Generating MBTiles files with custom imagery has a list of tools and resources for creating MBTiles files with custom data.

QGis can also generate MBtiles: menu View > Panels > Processing Toolbox > Raster tools > Generate XYZ tiles (MBTiles)

OpenSeaMap

You can get OpenSeaMap offline-charts in MBTiles-format:

get MBTiles by the Download-Layer

Usable for:

Navi-Programm	Website
GPXSee	GPXSee.org
Locus
OruxMaps
OpenCPN	OpenCPN.org
WinNav	WinNav.de

Look and Feel

OpenSeaMap
auf Samsung, mit Locus Pro

Übersicht 8 km
Ansteuerung 3 km
Hafenplan 300 m
Detail 70 m

Offline-Karten

Folgende Karten sind im Format MBTiles verfügbar:

Revier	Download	Grösse
Adria	Adria	0,5 GB
Biskaya	Biskaya	0,5 GB
Englischer Kanal	Englischer Kanal	0,5 GB
Magellanstrasse	Magellanstrasse	0,1 GB
Mittelmeer Ost	Mittelmeer Ost	1,2 GB
Mittelmeer West	Mittelmeer West	1,0 GB
Nordsee	Nordsee	1,4 GB
Ostsee	Ostsee	1,2 GB