Start with the workflow, then download
If you are new to MERRILL, begin with the guided tutorials to understand how scripts, meshes, and material parameters work together before installing locally. The FORCINN browser tool also lets you try FORC preprocessing and CNN inversion without any local installation — a useful first step before committing to a full setup.
Latest release packages
Choose the platform package that matches your machine. Each package includes the MERRILL executable, example input scripts, and mesh files to run the Tutorial 1 model immediately.
| Platform | Architecture | OS version tested | Package size | Last updated | Download |
|---|---|---|---|---|---|
| macOS | Apple Silicon (arm64) + Intel (x86-64) | macOS 13 Ventura, 14 Sonoma, 15 Sequoia | 515 KB | Download | |
| Linux | x86-64 | Ubuntu 20.04 LTS, 22.04 LTS, 24.04 LTS | 537 KB | Download | |
| Windows | x86-64 | Windows 10 (21H2+), Windows 11 | 529 KB | Download |
macOS users: the binary is unsigned — see the FAQ if Gatekeeper blocks the first launch. Windows users: v1.8.6p includes a native Windows binary (SmartScreen may warn at first run — click More info → Run anyway). For v2.x on Windows, use the Linux binary via WSL.
MERRILL manual and source code
Need help getting started?
- See Tutorials for step-by-step installation and first-run guidance.
- Read About MERRILL for a full description of capabilities and workflow.
- Browse Resources for pre-built meshes, workshop packs, and the manual.
- Try FORCINN to run FORC inversion in the browser before installing locally.
How to cite MERRILL
If you use MERRILL in your research, please cite the primary software paper:
How to cite MERRILL
Conbhui, P, Ó., et al. (2018). MERRILL: Micromagnetic Earth Related Robust Interpreted Language Laboratory. Geochemistry, Geophysics, Geosystems, 19, 1080–1106.
DOI: 10.1002/2017GC007279