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Featured
AutoDock Vina Extended

Free trial

10262
959
12

Dock thousands of ligands into proteins and rank them with this extended version of AutoDock Vina.

Molecular Cycles

Included with all plans

Make studio-quality visuals and animations with Cycles, the Blender renderer.

NMR2

Free trial

268
6
1

Compute structures of protein-ligand complexes using NMR data.

Protein Structure Prediction

Included with all plans

Predict protein structures from sequences using AlphaFold, ESMFold, OpenFold and NVIDIA BioNeMo services.

SAMSON AI ✨

Included with all plans

Your next-generation modeling assistant.

Life science
ARAP Interpolator
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1609
227
3

Generate paths between two protein conformations within a few seconds thanks to ARAP interpolation.

AutoDock Vina Extended

Free trial

10262
959
12

Dock thousands of ligands into proteins and rank them with this extended version of AutoDock Vina.

Batch Protein Prepare
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1004
66
1

Prepare proteins in a batch: remove alt. locations, water, ligands, ions, add hydrogens.

Conformer Creator

Free trial

1853
113
2

Compute low-energy conformers of small molecules.

FITTED Suite

Free trial

12183
48
2

Perform covalent and non-covalent protein-ligand docking with the FITTED Suite by Molecular Forecaster

Glycans
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1591
50
3

Build glycans using a library of monosaccharides

GROMACS interaction models

Free trial

1972
673
3

Perform interactive simulations with GROMACS force fields.

GROMACS Wizard

Free trial

6585
527
6

Prepare, minimize, equilibrate, and simulate systems using GROMACS on your computer or in the cloud.

Hex

Free trial

2276
37
8

Perform protein-protein docking.

Hydrogen Bond Finder
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
2274
853
5

Find and visualize hydrogen bonds.

IM-UFF

Free trial

1619
117
4

Simulate molecular systems using this generalized, Interactive-Modeling version of the Universal Force Field capable of automatic bond creation and br...

Interactive Ramachandran Plot
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
2145
749
2

Display Ramachandran diagram of selected residues. Move a residue on the plot and see the effect it has on the protein.

iSafeRat MechoA
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1891
345
3

Predict mechanisms of toxic action of molecules.

Ligand Path Finder

Free trial

2392
95
4

Find ligand unbinding pathways from a protein within minutes.

MMTF Importer

Included with all plans

Importer for the macromolecular transmission format (MMTF) files (*.mmtf).

Molecular Box Builder
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1465
56
3

Construct systems by filling a box with molecules.

NMR2

Free trial

268
6
1

Compute structures of protein-ligand complexes using NMR data.

Normal Modes Advanced

Free trial

1646
70
3

Compute nonlinear normal modes that open and close binding pockets of proteins.

Normal Modes Analysis
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1779
481
1

Compute the nonlinear normal modes of a molecular system (protein, RNA, DNA) very quickly using the NOLB algorithm developed by Alexandre Hoffmann and...

PDBx/mmCIF Importer

Included with all plans

Importer for the PDBx/mmCIF file format.

Pepsi-SAXS

Free trial

1697
68
1

Rapidly compute small-angle X-ray scattering profiles.

Protein Aligner
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
2022
645
5

Align multiple sequences and structures of proteins.

Protein Path Finder

Free trial

1671
53
5

Find protein conformational transition paths within minutes.

Protein Structure Downloader

Included with all plans

Fetch structures from the RCSB Protein Data Bank and the AlphaFold Protein Structure Database.

Protein Structure Prediction

Included with all plans

Predict protein structures from sequences using AlphaFold, ESMFold, OpenFold and NVIDIA BioNeMo services.

Protein-Ligand Interaction Analyzer
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
2591
295
5

Analyze protein-ligand interactions

Rotamers editor
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1510
148
5

Modify an amino acid residue into its rotamer or mutate it into an amino acid residue of a different type.

SAMSON AI ✨

Included with all plans

Your next-generation modeling assistant.

SMILES Manager

Free trial

2316
173
4

Import thousands of SMILES codes. Filter them using custom patterns. Modify them and generate their corresponding 2D image. Add them to the SAMSON Doc...

Structure validation

Included with all plans

Validate biological structures and prepare them for further calculations.

Symmetry Detection
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1284
295
2

Detect axes of cyclic, dihedral and cubic symmetries in protein complexes.

Symmetry Mate Editor
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1508
239
2

Interactively generate symmetry mates of a protein based on the crystallographic information from a pdb file.

Machine learning and AI
Protein Structure Prediction

Included with all plans

Predict protein structures from sequences using AlphaFold, ESMFold, OpenFold and NVIDIA BioNeMo services.

SAMSON AI ✨

Included with all plans

Your next-generation modeling assistant.

Materials science
Bond Angle Distribution
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1168
356
1

Compute the bond angle distribution of the selected atoms.

Bond Distortion Visualisation
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1308
375
1

Visualize the angle, bond, and projected bond distortions of a molecular or crystalic structure.

Brenner interaction model

Free trial

2679
1374
3

Perform interactive simulations of carbon nanotubes, graphene and hydrocarbon systems. Build complex geometries thanks to this reactive force field.

Conformer Creator

Free trial

1853
113
2

Compute low-energy conformers of small molecules.

Crystal Creator

Free trial

2649
362
5

Generate crystal models in a few clicks. Describe unit cells, import CIF files, model defects and impurities. Cut crystals.

Graphene Image Analyzer

Free trial

1411
100
3

Build a graphene model from a TEM image

Graphene Sheet Creator
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
2383
1769
5

Create a graphene sheet in one click.

IM-UFF

Free trial

1619
117
4

Simulate molecular systems using this generalized, Interactive-Modeling version of the Universal Force Field capable of automatic bond creation and br...

Molecular Box Builder
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1465
56
3

Construct systems by filling a box with molecules.

Molecular Motif Grafter
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
676
28
1

Place molecules on a surface

Nanotube Creator
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
3390
1686
5

Create a carbon nanotube (CNT) in just two clicks.

P-NEB
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1943
213
1

Use a parallel implementation of the nudged elastic band (NEB) method to find saddle points and minimum-energy paths.

Polymer Builder
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1222
53
1

Construct polymers out of various building blocks (monomers and their sequences).

SAMSON AI ✨

Included with all plans

Your next-generation modeling assistant.

TMD Image Analyzer

Free trial

1868
26
5

Construct transition metal dichalcogenide monolayers from experimental images.

Twister

Included with all plans

Perform large-scale deformations of materials and biomolecules interactively with this powerful editor.

Computational chemistry
Adaptive Lennard-Jones
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1453
465
1

Simulate with an adaptive version of the Lennard-Jones potential.

Brenner interaction model

Free trial

2679
1374
3

Perform interactive simulations of carbon nanotubes, graphene and hydrocarbon systems. Build complex geometries thanks to this reactive force field.

Conformer Creator

Free trial

1853
113
2

Compute low-energy conformers of small molecules.

FIRE state updater
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1608
713
2

Optimize molecular structures with FIRE.

GROMACS Wizard

Free trial

6585
527
6

Prepare, minimize, equilibrate, and simulate systems using GROMACS on your computer or in the cloud.

iSafeRat MechoA
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1891
345
3

Predict mechanisms of toxic action of molecules.

Lennard-Jones model
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1417
1097
1

The Lennard-Jones interaction model.

P-NEB
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1943
213
1

Use a parallel implementation of the nudged elastic band (NEB) method to find saddle points and minimum-energy paths.

SMILES Manager

Free trial

2316
173
4

Import thousands of SMILES codes. Filter them using custom patterns. Modify them and generate their corresponding 2D image. Add them to the SAMSON Doc...

State Updaters Collection

Included with all plans

A collection of state updaters used for interactive minimization simulation.

Universal force field

Included with all plans

Simulate molecular systems using the Universal Force Field (UFF) with automatic structure perception.

Physics and nanotechnology
Brenner interaction model

Free trial

2679
1374
3

Perform interactive simulations of carbon nanotubes, graphene and hydrocarbon systems. Build complex geometries thanks to this reactive force field.

Graphene Image Analyzer

Free trial

1411
100
3

Build a graphene model from a TEM image

Graphene Sheet Creator
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
2383
1769
5

Create a graphene sheet in one click.

Molecular Box Builder
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1465
56
3

Construct systems by filling a box with molecules.

Molecular Motif Grafter
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
676
28
1

Place molecules on a surface

Nanotube Creator
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
3390
1686
5

Create a carbon nanotube (CNT) in just two clicks.

TMD Image Analyzer

Free trial

1868
26
5

Construct transition metal dichalcogenide monolayers from experimental images.

Teaching and learning
Cluster Game
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1466
350
3

A game where you build optimal assemblies of interacting atoms.

Discovering Alkanes
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1447
143
3

A game where you search and build molecules.

Documentation Links

Included with all plans

Preview and access the User guide pages directly from SAMSON.

Interactive Tutorials

Included with all plans

Learn molecular design with SAMSON thanks to these interactive, step-by-step tutorials.

SAMSON AI ✨

Included with all plans

Your next-generation modeling assistant.

Virtual Reality Portal
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
2204
225
4

Visualize, build and simulate in virtual reality.

Visualization and rendering
Animation Toolkit

Included with all plans

Rapidly create advanced molecular animations with these thirty-two animation templates.

Bond Angle Distribution
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1168
356
1

Compute the bond angle distribution of the selected atoms.

Bond Distortion Visualisation
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1308
375
1

Visualize the angle, bond, and projected bond distortions of a molecular or crystalic structure.

glTF Importer and Exporter

In Professional and Enterprise plans

Import and export 3D models in glTF format.

Glycans Visual Models

Included with all plans

Visualize glycans with the 3D Symbol Nomenclature for Glycans (SNFG) representation.

Image Loader

Included with all plans

Load images as visual models or meshes to include them in visualizations and presentations, or to help you construct structures.

Molecular Cycles

Included with all plans

Make studio-quality visuals and animations with Cycles, the Blender renderer.

Movie Exporters

Included with all plans

Export animations and presentations as movies in GIF, MP4, and WEBM formats.

Pathlines
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1654
264
2

Visualize paths of a set of atoms.

Polyhedral visual model

Included with all plans

Visualize MOFs and crystals with Polyhedrons

STL Importer

Included with all plans

Import Stereolithography (.stl) binary and ASCII files to display them and generate carbon atoms based on vertices positions.

Virtual Reality Portal
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
2204
225
4

Visualize, build and simulate in virtual reality.

Visual Models Collection

Included with all plans

Visualize molecular structures using a collection of representations and color schemes.

Visual Presets

Included with all plans

A collection of visual presets to rapidly create publication-quality images.

Molecular modeling and editing
Assets Collection

Included with all plans

A collection of various assets that can be used to build molecular systems.

Atoms Selector
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1228
418
1

Select atoms based on expressions with NSL-like variables, standard mathematical and logical operations.

Commands Collection

Included with all plans

A collection of commands that constitute menus and allow you to perform tasks.

Crystal Creator

Free trial

2649
362
5

Generate crystal models in a few clicks. Describe unit cells, import CIF files, model defects and impurities. Cut crystals.

Editors Collection

Included with all plans

A collection of editors to build, modify, move, measure, and label molecular systems.

FIRE state updater
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1608
713
2

Optimize molecular structures with FIRE.

Graphene Sheet Creator
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
2383
1769
5

Create a graphene sheet in one click.

IM-UFF

Free trial

1619
117
4

Simulate molecular systems using this generalized, Interactive-Modeling version of the Universal Force Field capable of automatic bond creation and br...

Molecular Box Builder
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1465
56
3

Construct systems by filling a box with molecules.

Molecular Motif Grafter
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
676
28
1

Place molecules on a surface

Nanotube Creator
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
3390
1686
5

Create a carbon nanotube (CNT) in just two clicks.

Polymer Builder
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1222
53
1

Construct polymers out of various building blocks (monomers and their sequences).

Rotamers editor
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1510
148
5

Modify an amino acid residue into its rotamer or mutate it into an amino acid residue of a different type.

SAMSON AI ✨

Included with all plans

Your next-generation modeling assistant.

Selection statistics
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
997
253
1

Basic geometry and concentration statistics for the selected atoms.

Selectors Collection

Included with all plans

A collection of selectors used across various commands, visual presets, and extensions.

Structure validation

Included with all plans

Validate biological structures and prepare them for further calculations.

Twister

Included with all plans

Perform large-scale deformations of materials and biomolecules interactively with this powerful editor.

Workspaces Collection

Included with all plans

A collection of workspaces that customize the SAMSON interface.

Scripting and development
Code Editor

Included with all plans

Develop using the Monaco Editor.

Exposed functionality viewer
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1097
74
2

View the exposed functionality of SAMSON Extensions

Log Viewer
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1252
257
3

Want to check logs and outputs? This extension redirects C/C++ standard streams and Qt messages.

Python Scripting

Included with all plans

Script SAMSON using Python. Model and simulate from scripts. Pipeline calculations. Integrate Python packages for machine learning and more.

SAMSON AI ✨

Included with all plans

Your next-generation modeling assistant.

SAMSON Extension Generator
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1960
295
4

Want to create a SAMSON Extension ? Generate source code from a template in a few clicks and start developing.

SAMSON Extension Packager
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1319
216
3

Package and validate a SAMSON Extension you developed to publish it on SAMSON Connect.

Simple Script
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1586
288
1

Modify atoms' parameters (position, selection, etc) using a simple scripting language, NSL-like variables, mathematical and logical operations.

UUID Generator
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1707
203
1

Generate UUIDs directly from SAMSON in one click.

Data conversion and exchange
Export along paths
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1349
264
1

Export atoms along paths in PDB files.

Exporters Collection

Included with all plans

A collection of exporters for the GRO, MOL2, PDB, and XYZ formats.

glTF Importer and Exporter

In Professional and Enterprise plans

Import and export 3D models in glTF format.

Gzip Importer

Included with all plans

Importer for gzipped (.gz) files of already supported formats (e.g., .pdb.gz).

Image Loader

Included with all plans

Load images as visual models or meshes to include them in visualizations and presentations, or to help you construct structures.

Importers Collection

Included with all plans

A collection of importers for the CML, GRO, MOL, MOL2, PDB, SD, SDF, and XYZ formats

MMTF Importer

Included with all plans

Importer for the macromolecular transmission format (MMTF) files (*.mmtf).

Movie Exporters

Included with all plans

Export animations and presentations as movies in GIF, MP4, and WEBM formats.

OBJ Exporter

In Professional and Enterprise plans

Export molecular structures, visual models and surfaces to OBJ - including their colors - to import them in 3D animation software, or even PowerPoint™...

OBJ Importer

Included with all plans

Import OBJ files into SAMSON.

PDB trajectory loader
This extension is free.

A Standard plan or above is required to
use more than one free extension at a time.
1590
311
1

Create a trajectory (path) based on a series of PDB files.

PDBx/mmCIF Importer

Included with all plans

Importer for the PDBx/mmCIF file format.

STL Importer

Included with all plans

Import Stereolithography (.stl) binary and ASCII files to display them and generate carbon atoms based on vertices positions.

Trajectory Importers

Included with all plans

Import and export molecular dynamics trajectories in various formats.