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osm2pgsql is a tool for loading OpenStreetMap data into a PostgreSQL / PostGIS database suitable for applications like rendering into a map, geocoding with Nominatim, or general analysis.

See the documentation for instructions on how to install and run osm2pgsql.

Github Actions Build Status Packaging Status


  • Converts OSM files to a PostgreSQL DB
  • Conversion of tags to columns is configurable in the style file
  • Able to read .gz, .bz2, .pbf and .o5m files directly
  • Can apply diffs to keep the database up to date
  • Support the choice of output projection
  • Configurable table names
  • Support for hstore field type to store the complete set of tags in one database field if desired


Most Linux distributions include osm2pgsql. It is available on macOS with Homebrew and Windows builds are also available. See for details.


The latest source code is available in the osm2pgsql git repository on GitHub and can be downloaded as follows:

git clone

Osm2pgsql uses the cross-platform CMake build system to configure and build itself.

Required libraries are

The following libraries are included in the contrib directory. You can build with other versions of those libraries (set the EXTERNAL_*libname* option to ON) but make sure you are using a compatible version:

It also requires access to a database server running PostgreSQL (version 9.6+ works, 13+ strongly recommended) and PostGIS (version 2.5+).

Make sure you have installed the development packages for the libraries mentioned in the requirements section and a C++ compiler which supports C++17. We officially support gcc >= 8.0 and clang >= 8.

To rebuild the included man page you'll need the pandoc tool.

First install the dependencies.

On a Debian or Ubuntu system, this can be done with:

sudo apt-get install make cmake g++ libboost-dev \
  libexpat1-dev zlib1g-dev libpotrace-dev \
  libopencv-dev libbz2-dev libpq-dev libproj-dev lua5.3 liblua5.3-dev \
  pandoc nlohmann-json3-dev pyosmium

On a Fedora system, use

sudo dnf install cmake make gcc-c++ libtool boost-devel bzip2-devel \
  expat-devel fmt-devel json-devel libpq-devel lua-devel zlib-devel \
  potrace-devel opencv-devel python3-osmium \
  postgresql-devel proj-devel proj-epsg pandoc

On RedHat / CentOS first run sudo yum install epel-release then install dependencies with:

sudo yum install cmake make gcc-c++ boost-devel expat-devel zlib-devel \
  potrace-devel opencv-devel json-devel python3-osmium \
  bzip2-devel postgresql-devel proj-devel proj-epsg lua-devel pandoc

On a FreeBSD system, use

pkg install devel/cmake devel/boost-libs textproc/expat2 \
  databases/postgresql94-client graphics/proj lang/lua52

On Alpine, use

apk --update-cache add cmake make g++ nlohmann-json \
  postgresql-dev boost-dev expat-dev bzip2-dev zlib-dev \
  libpq proj-dev lua5.3-dev luajit-dev

Once dependencies are installed, use CMake to build the Makefiles in a separate folder:

mkdir build && cd build
cmake ..

If some installed dependencies are not found by CMake, more options may need to be set. Typically, setting CMAKE_PREFIX_PATH to a list of appropriate paths is sufficient.

When the Makefiles have been successfully built, compile with


The man page can be rebuilt with:

make man

The compiled files can be installed with

sudo make install

To install the experimental osm2pgsql-gen binary use

sudo make install-gen

By default, the Release build with debug info is created and no tests are compiled. You can change that behavior by using additional options like following:

cmake .. -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Debug -DBUILD_TESTS=ON

Note that Debug builds will be much slower than release build. For production Release or RelWithDebInfo builds are recommended.

Using the PROJ library

Osm2pgsql has builtin support for the Latlong (WGS84, EPSG:4326) and the WebMercator (EPSG:3857) projection. Other projections are supported through the Proj library which is used by default. Set the CMake option WITH_PROJ to OFF to disable use of that library.

Using LuaJIT

To speed up Lua tag transformations, LuaJIT can be optionally enabled on supported platforms. This can speed up processing considerably.

On a Debian or Ubuntu system install the LuaJIT library:

sudo apt-get install libluajit-5.1-dev

Configuration parameter WITH_LUAJIT=ON needs to be added to enable LuaJIT. Otherwise make and installation steps are identical to the description above.

cmake -D WITH_LUAJIT=ON ..

Use osm2pgsql --version to verify that the build includes LuaJIT support. The output should show something like

Lua 5.1.4 (LuaJIT 2.1.0-beta3)


There is some experimental support for data generalization. See for details.


If you have problems with osm2pgsql or want to report a bug, go to .


This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.


We welcome contributions to osm2pgsql. See and for information on how to contribute.