Downloads

Free Demo Version

Send an informal email to t.schneider@splashtool.de. You will gladly receive a free demo version for testing!

Downloads

The download links for the setup files are password protected. The password is known to customers and will be communicated to interested persons as part of providing the demo version.

Setup FileInstallation and Configuration ManualProcess Description
SplashTool_v_3.2.1Manual_v3.2 Process Description_v3.2
SplashTool_v_3.1.1
SplashTool_v3.0.2

Attention: Old versions are no longer officially supported. The English documentation is only avalable from SplashTool 3.2.1.

Outlook SplashTool 4.0 – Release in early 2026 with numerous improvements

  • Revision of the GPU-based computing core with a further significant speed increase
  • No more automatic restart in CPU mode if GPU mode is not available.
  • More robust license check: Single-user licenses retain their validity even if individual hardware components of the computer are replaced.
  • Removal of the old method for flow accumulation. This was still included in version 3 for compatibility with old iteration runs and has now been removed in favor of the improved method
  • Adjustment of the appearance: In addition to the familiar light mode, there is a dark mode. Individual buttons are color-highlighted for a better user experience.
  • The advanced settings in the graphical interface are displayed more clearly.
  • Language and appearance can now be set directly in the graphical interface, no more manual changes to the configuration file required.
  • Persistent settings: Settings such as input and output paths remain when SplashTool is closed until the next restart
  • Progress bar: During iteration, a progress bar is displayed. The progress can only be roughly estimated.
  • Bugfix: SplashTool now also finds the config and license files if it is not started in the root directory via the command line
  • Update of the program libraries to support the capabilities of the latest graphics cards
  • New logo

Release Notes

v3.2.1

  • Bilingual in German and English, controlled by an entry in the splashconfig file
  • One output dataset at the end, instead of multiple datasets during iteration. Can be changed back by settings in the graphical user interface or permanent change in the splashconfig if desired
  • The file open dialog starts in the user’s directory, not in the SplashTool installation directory

v3.1.1

  • Very large and very small nodata values are now correctly classified as nodata
  • Nodata values in initial water depth and flow accumulation GeoTIFs are reclassified to 0
  • If no model sinks are to be created at the model edge, nodata values of the DEM are reclassified to 9.999 and thus act as a flow barrier at the model edge

v3.0.2

  • Update of the computing core for separate flow accumulation in X and Y direction. Output of flow_x, flow_y and flow_xy
  • Postprocessing of flow accumulation and creation of point shapefiles for visualization of flow arrows
  • The graphics card memory is released directly after the end of the iteration and not only when SplashTool is closed
  • If an input GeoTIF has a dedicated nodata value, this is taken into account when reading. Only if no nodata value is defined, the NODATA threshold value defined in the configuration is used. -88888 is used as the standard nodata value for GeoTIF export.

v2.2

  • Automatic output of a BIGTIF for large output files. This allows results to be output even for very large areas with more than 500 million raster cells
  • Change of lossless TIF compression from LZW to DEFLATE and thus smaller result files

v2.1

  • Automatic restart in CPU mode if GPU mode cannot be started successfully
  • “Education” license type
  • Update of the underlying libraries, code maintenance to maintain compatibility with current Python modules

v2.0

  • Output of the maximum water depth over the iteration process
  • Cudatoolkit is integrated into the installation, no separate installation required
  • Extended Nvidia CUDA information in the log file
  • Update of the underlying libraries to support the latest Nvidia graphics cards of the Ada Lovelace generation

v1.0

Extended log output

  • Moving the setting of the Computation Mode from the advanced settings to the main interface
  • Calculation on the CPU as default
  • License information
  • CUDA information in log file
  • Option to save the current log file under a new name

v0.9.1

  • Missing gdal Project database added
  • New label for advanced settings

v0.9.0

  • Initial Beta Release