Browse free open source Molecular Science software and projects below. Use the toggles on the left to filter open source Molecular Science software by OS, license, language, programming language, and project status.

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  • 1
    Avogadro

    Avogadro

    An intuitive molecular editor and visualization tool

    Avogadro is an advanced molecular editor designed for cross-platform use in computational chemistry, molecular modeling, bioinformatics, materials science and related areas. It offers a flexible rendering framework and a powerful plugin architecture.
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    Downloads: 1,367 This Week
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  • 2
    PyRx - Virtual Screening Tool

    PyRx - Virtual Screening Tool

    Virtual Screening software for Computational Drug Discovery

    PyRx is a Virtual Screening software for Computational Drug Discovery that can be used to screen libraries of compounds against potential drug targets. PyRx enables Medicinal Chemists to run Virtual Screening from any platform and helps users in every step of this process - from data preparation to job submission and analysis of the results. While it is true that there is no magic button in the drug discovery process, PyRx includes docking wizard with easy-to-use user interface which makes it a valuable tool for Computer-Aided Drug Design. PyRx also includes chemical spreadsheet-like functionality and powerful visualization engine that are essential for Rational Drug Design. Please visits PyRx home page to learn more about PyRx and watch videos on how to use it.
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    Downloads: 1,873 This Week
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  • 3
    Bowtie, an ultrafast, memory-efficient short read aligner for short DNA sequences (reads) from next-gen sequencers. Please cite: Langmead B, et al. Ultrafast and memory-efficient alignment of short DNA sequences to the human genome. Genome Biol 10:R25.
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    Downloads: 392 This Week
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  • 4
    Toxtree: Toxic Hazard Estimation

    Toxtree: Toxic Hazard Estimation

    Toxicity prediction for chemical compounds

    A GUI application which estimates toxic hazard of chemical compounds. The latest version includes the following toxicity prediction modules: -Cramer rules (oral toxicity) -Toxicity mode of action via Verhaar scheme -Skin irritation and Eye irritation prediction -Benigni / Bossa rulebase for mutagenicity and carcinogenicity prediction -START biodegradation and persistence prediction -Skin sensitisation reactivity domain -Kroes TTC Decision tree -SMARTCyp - Cytochrome P450-Mediated Drug Metabolism and metabolites prediction -Structure Alerts for the in vivo micronucleus assay in rodents (ISSMIC) -Structural Alerts for Functional Group Identification (ISSFUNC) -Structural alerts associated with covalent protein binding and DNA binding. - Ames mutagenicity Toxtree provides a plugin framework to incorporate different approaches to the estimation. Platform independent (written in Java), with the use of The Chemistry Development Kit.
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    Downloads: 169 This Week
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  • 5
    Bowtie 2

    Bowtie 2

    A fast and sensitive gapped read aligner

    Bowtie 2 is a fast, memory-efficient genomic read aligner used to map sequencing reads against long reference sequences such as mammalian genomes. It is especially effective for reads ranging from around 50 bases to hundreds or thousands of characters, and it supports modern sequencing workflows that require gapped, local, and paired-end alignment. The tool builds compact FM-index-based reference indexes, keeping memory usage low even for large genomes like the human genome. Bowtie 2 outputs alignments in SAM format and includes companion utilities for building and inspecting indexes. It is widely used in bioinformatics pipelines for RNA-seq, DNA-seq, metagenomics, variant analysis, and other sequencing-based research tasks. Overall, Bowtie 2 remains a foundational command-line tool for high-throughput sequence alignment and reproducible computational biology workflows.
    Downloads: 22 This Week
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  • 6
    The SourceForge OpenRasMol project is an adjunct to the RasMol and OpenrasMol project at http://rasmol.org. It is hoped that the SourceForge OpenRasMol project will provide a convenient focal point for active collaborative contributions.
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    Downloads: 307 This Week
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  • 7
    Gabedit is a Graphical User Interface for FireFly (PC-Gamess), Gamess-US, Gaussian, Molcas, Molpro, MPQC, NWChem, OpenMopac, Orca, PSI4 and Q-Chem computational chemistry packages.
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    Downloads: 98 This Week
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  • 8
    OpenCFU

    OpenCFU

    An application to count bacterial colonies and other circular objects

    OpenCFU is a completely open source lightweight application designed to enumerate clustered circular objects such as bacterial colonies. It can handle digital pictures as well as live stream from a video device/webcam. OpenCFU is cross-platform, fast, reliable and allows the user to implement intuitive filters. Additional information is provided on the website: http://opencfu.sourceforge.net/ OpenCFU is published on PLoS ONE: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0054072
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    Downloads: 118 This Week
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  • 9
    MzDOCK - Multiple Ligand Docking Tool

    MzDOCK - Multiple Ligand Docking Tool

    MzDOCK is A Virtual Screening Tool For Drug Discovery Research

    - Molecular Docking Virtual Screening Tool To Aid In Drug Discovery Research. - Published in Wiley, Journal of Computational Chemistry . Link: https://onlinelibrary.wiley.com/doi/abs/10.1002/jcc.27390 - Developed with Synchronized functioning of Python and Batch scripts -Integerated With Pymol-open-source for visualizing interaction (PSE file) generated from MzDOCK - Integrated with Molecule Drawing Tool - JSME Editor - If you are facing any issues or for queries . Contact us - kabeermuzammil614@gmail.com MzDOCK Development - Available on WindowsOS and Linux ubuntu 22.04 and more - Software Authorship - Muzammil Kabier
    Downloads: 68 This Week
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  • 10

    Subread

    High-performance read alignment, quantification and mutation discovery

    The Subread software package is a tool kit for processing next-gen sequencing data. It includes Subread aligner, Subjunc exon-exon junction detector and featureCounts read summarization program. Subread aligner can be used to align both gDNA-seq and RNA-seq reads. Subjunc aligner was specified designed for the detection of exon-exon junction. For the mapping of RNA-seq reads, Subread performs local alignments and Subjunc performs global alignments. Subread and Subjunc were published in the following paper: Yang Liao, Gordon K Smyth and Wei Shi. "The Subread aligner: fast, accurate and scalable read mapping by seed-and-vote", Nucleic Acids Research, 2013, 41(10):e108
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    Downloads: 266 This Week
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  • 11

    picard

    A set of tools for working with high-throughput sequencing data

    A set of tools (in Java) for working with next generation sequencing data in the SAM/BAM format. Note that development has moved to GitHub at https://github.com/broadinstitute/picard and support is available on the GATK forum at http://gatkforums.broadinstitute.org/categories/ask-the-team
    Downloads: 27 This Week
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  • 12
    Open3DQSAR
    Open3DQSAR is a free, open-source tool written in C aimed at pharmacophore exploration by high-throughput chemometric analysis of molecular interaction fields (MIFs).
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    Downloads: 74 This Week
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  • 13
    BioXTAS RAW

    BioXTAS RAW

    Processing and analysis of Small Angle X-ray Scattering (SAXS) data.

    BioXTAS RAW is a program for analysis of Small-Angle X-ray Scattering (SAXS) data. The software enables: creation of 1D scattering profiles from 2D detector images, standard data operations such as averaging and subtraction, analysis of radius of gyration (Rg) and molecular weight, and advanced analysis using GNOM and DAMMIF as well as electron density reconstructions using DENSS. It also allows easy processing of inline SEC-SAXS data and data deconvolution using the evolving factor analysis (EFA) or the regularized alternating least squares (REGALS) methods. Active source code is now maintained on github: https://github.com/jbhopkins/bioxtasraw To install: Check the instructions available at: http://bioxtas-raw.readthedocs.io/en/latest/install.html and in the Files tab. User guides: RAW guides are available at: http://bioxtas-raw.readthedocs.io/ and in the Files tab. To contact us, see: https://bioxtas-raw.readthedocs.io/en/latest/help.html
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    Downloads: 70 This Week
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  • 14

    Molecular Dynamics Studio

    Molecular Dynamics Cell Construction

    This is a collection of software modifications created to integrate NanoEngineer-1, PACKMOL and MSI2LMP for the purpose of easily creating molecular dynamics cells. NanoEngineer-1 is a molecular CAD software written by Nanorex and provides the user an easy way to create molecules, while the software modifications allow the user to type atoms using multiple force fields. PACKMOL can generate a random collection of molecules using the molecule templates from NanoEngineer-1 thus providing the initial MD cell. Modifications to PACKMOL allow the atom type data to be passed through to the MSI2LMP software. MSI2LMP creates a LAMMPS input file based on class I or class II force fields. MSI2LMP was modified to use numerically coded force field data generated by NanoEngineer-1. The MMP file format was extended and integrated into all three software applications. http://www.nanoengineer-1.net http://www.ime.unicamp.br/~martinez/packmol/ http://lammps.sandia.gov/
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    Downloads: 33 This Week
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  • 15
    EMC: Enhanced Monte Carlo; A multi-purpose modular and easy extendable solution to molecular and mesoscale simulations
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    Downloads: 57 This Week
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  • 16
    Molsketch

    Molsketch

    2D molecule editor

    Molsketch is a 2D molecular editing tool. Its goal is to help you draw molecules quick and easily. Of course you're creation can be exported afterwards in high quality in a number of vector and bitmap formats.
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    Downloads: 29 This Week
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  • 17

    kSNP

    kSNP4 does SNP discovery and SNP annotation from whole genomes

    kSNP4 identifies the pan-genome SNPs in a set of genome sequences, and estimates phylogenetic trees based upon those SNPs. SNP discovery is based on k-mer analysis, and requires no multiple sequence alignment or the selection of a reference genome, so kSNP4 can take 100's of microbial genomes as input. A SNP locus is defined by an oligo of length k surrounding a central SNP allele. kSNP4 can analyze both complete (finished) genomes and unfinished genomes in assembled contigs or raw, unassembled reads. Finished and unfinished genomes can be analyzed together, and kSNP can automatically download Genbank files of the finished genomes and incorporate the information in those files into the SNP annotation. No programming skills are required to use kSNP4 Gardner, S.N. and Hall, B.G. 2013. . PLoS ONE, 8(12):e81760.doi:10.1371/journal.pone.0081760 Gardner, S.N., T. Slezak, and B.G. Hall. 2015 Bioinformatics 31: 2877-2878 doi: 10.1093/bioinformatics/btv271
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    Downloads: 41 This Week
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  • 18
    luscus

    luscus

    molecular editor and viewer

    Luscus is the program for graphical display and editing of molecular systems. The program allows fast and easy building and/or editing different molecular structures, up to several thousands of atoms large. Luscus can also visualize dipole moments, normal modes, molecular orbitals, electron densities and electrostatic potentials. In addition, simple geometrical objects can be rendered in order to point out a geometrical feature or a physical quantity. The program is developed as a graphical interface for MOLCAS program package, however it's adaptive nature makes possible using luscus with other computational program packages and chemical formats. If you use this program, please cite: G. Kovačević, V. Veryazov, J. Cheminformatics, 7 (2015) 1-10; DOI: 10.1186/s13321-015-0060-z
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    Downloads: 32 This Week
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  • 19
    MZmine 2

    MZmine 2

    A framework for differential analysis of mass spectrometry data

    MZmine 2 is a framework written in Java for differential analysis of mass spectrometry data.
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    Downloads: 26 This Week
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  • 20
    RasTop is a molecular graphics program intended for the visualisation of proteins, nucleic acids and small molecules based on the popular Rasmol software. The program is aimed at the rapid visualization and analysis of molecules.
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    Downloads: 13 This Week
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  • 21
    The Sashimi project hosts the Trans-Proteomic Pipeline (TPP), a mature suite of tools for mass-spec (MS, MS/MS) based proteomics: statistical validation, quantitation, visualization, and converters from raw MS data to the open mzML/mzXML formats.
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    Downloads: 19 This Week
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  • 22
    Downloads: 18 This Week
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  • 23
    ShelXle

    ShelXle

    ShelXle is a Qt GUI for SHELXL

    ShelXle combines an editor with syntax highlighting for the SHELXL-associated .ins (input) and .res (output) files with an interactive graphical display for visualization of a three-dimensional structure including the electron density (Fo) and difference density (Fo-Fc) maps. See J. Appl. Cryst. (2011). 44, 1281–1284. for details.
    Downloads: 10 This Week
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  • 24
    This space is not maintained anymore. If you want to get the latest updates on fpocket refer to https://github.com/Discngine/fpocket. Fpocket is a very fast open source protein pocket detection algorithm based on Voronoi tessellation. The platform is suited for the scientific community willing to develop new scoring functions and extract pocket descriptors on a large scale level.
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    Downloads: 16 This Week
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  • 25
    relax

    relax

    Molecular dynamics by NMR data analysis

    The software package 'relax' is designed for the study of molecular dynamics through the analysis of experimental NMR data. Organic molecules, proteins, RNA, DNA, sugars, and other biomolecules are all supported. It supports exponential curve fitting for the calculation of the R1 and R2 relaxation rates, calculation of the NOE, reduced spectral density mapping, the Lipari and Szabo model-free analysis, study of domain motions via the N-state model and frame order dynamics theories using anisotropic NMR parameters such as RDCs and PCSs, the investigation of stereochemistry in dynamic ensembles, and the analysis of relaxation dispersion data.
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    Downloads: 16 This Week
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