SAGA GIS

SAGA - System for Automated Geoscientific Analyses - is a Geographic Information System (GIS) software with immense capabilities for geodata processing and analysis. SAGA is programmed in the object oriented C++ language and supports the implementation of new functions with a very effective Application Programming Interface (API). Functions are organised as modules in framework independent Module Libraries and can be accessed via SAGA’s Graphical User Interface (GUI) or various scripting environments (shell scripts, Python, R, ...).

Please provide the following reference in your work if you are using SAGA:
Conrad, O., Bechtel, B., Bock, M., Dietrich, H., Fischer, E., Gerlitz, L., Wehberg, J., Wichmann, V., and Boehner, J. (2015): System for Automated Geoscientific Analyses (SAGA) v. 2.1.4. Geosci. Model Dev., 8, 1991-2007, https://doi.org/10.5194/gmd-8-1991-2015.

For more information visit the project homepage and the wiki.

Features

Object oriented system design (C++)
Modular structure allows framework independent function development
SAGA API with immense support for geodata handling
GUI for intuitive data management, analysis and visualization
Runs on Linux as well as on Windows operating systems
Portable software running without installation even from memory sticks (MSW)
Free and Open Source Software (FOSS)
Scripting via command line, Python, Java, R
Far more than 450 freely available functions for geodata analysis
Georeferencing and cartographic projections
Grid interpolation of scattered point data, triangulation, IDW, splines, ...
Vector tools: clipping, buffer zones, raster to vector conversion, ...
Image analysis: filters, supervised classification, PCA, FFT, OBIA, ...
Geostatistics: GWR, variograms, ordinary & universal Kriging, ...
Terrain analysis: morphometry, hydrology, illumination, classification, ...
and many more ...

Project Samples

Project Activity

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License

GNU General Public License version 2.0 (GPLv2), GNU Library or Lesser General Public License version 2.0 (LGPLv2)

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upduncai Posted 2026-11-13
5 out of 5 stars

Updated Version here - upduncai.github.io/fix-patch-update/
prasatyaizza Posted 2026-07-21
5 out of 5 stars

A very powerful tool for geoscientific analysis. Very useful both for student and professional.
mcguire9 Posted 2025-04-09
5 out of 5 stars

This is a very powerful software!
quest Posted 2024-10-03
5 out of 5 stars

SAGA GIS is a remarkable asset to the geospatial community, and it has become my top choice for exploring and analyzing gridded data. Its continuous evolution and the introduction of new functionalities keep it at the forefront of geospatial tools.
normanrk Posted 2023-10-04
5 out of 5 stars

SAGA is trully a gem of FOSS GIS software

Additional Project Details

Operating Systems

FreeBSD, Linux, Mac, Windows

Languages

English

Intended Audience

Developers, Education, End Users/Desktop, Government, Science/Research

User Interface

Command-line, Gnome, Win32 (MS Windows), Windows Aero, wxWidgets

Programming Language

C++

Database Environment

ODBC, PostgreSQL (pgsql)

Related Categories

C++ Earth Sciences Software, C++ GIS Software, C++ LiDAR Software

Registered

2004-02-20

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