Showing 2478 open source projects for "open source invoice"

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  • Atera all-in-one platform IT management software with AI agents Icon
    Atera all-in-one platform IT management software with AI agents

    Ideal for internal IT departments or managed service providers (MSPs)

    Atera’s AI agents don’t just assist, they act. From detection to resolution, they handle incidents and requests instantly, taking your IT management from automated to autonomous.
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  • Free and Open Source HR Software Icon
    Free and Open Source HR Software

    OrangeHRM provides a world-class HRIS experience and offers everything you and your team need to be that HR hero you know that you are.

    Give your HR team the tools they need to streamline administrative tasks, support employees, and make informed decisions with the OrangeHRM free and open source HR software.
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  • 1
    Asymptote

    Asymptote

    2D & 3D TeX-Aware Vector Graphics Language

    Asymptote is a powerful descriptive vector graphics language for technical drawing, inspired by MetaPost but with an improved C++-like syntax. Asymptote provides for figures the same high-quality typesetting that LaTeX does for scientific text.
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    Downloads: 146 This Week
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  • 2

    Panorama Tools

    The cross-platform library behind the Hugin photo stitcher

    The cross-platform library behind the Hugin photo stitcher
    Downloads: 84 This Week
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  • 3
    Bayesian Julia

    Bayesian Julia

    Bayesian Statistics using Julia and Turing

    Bayesian statistics is an approach to inferential statistics based on Bayes' theorem, where available knowledge about parameters in a statistical model is updated with the information in observed data. The background knowledge is expressed as a prior distribution and combined with observational data in the form of a likelihood function to determine the posterior distribution. The posterior can also be used for making predictions about future events. Bayesian statistics is a departure from...
    Downloads: 0 This Week
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  • 4
    Sweetviz

    Sweetviz

    Visualize and compare datasets, target values and associations

    Sweetviz is an open-source Python library that generates beautiful, high-density visualizations to kickstart EDA (Exploratory Data Analysis) with just two lines of code. Output is a fully self-contained HTML application. The system is built around quickly visualizing target values and comparing datasets. Its goal is to help quick analysis of target characteristics, training vs testing data, and other such data characterization tasks.
    Downloads: 0 This Week
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  • Winningbidder.com provides free online auction software for nonprofits. Icon
    Winningbidder.com provides free online auction software for nonprofits.

    Simple and Free Online Auction Software

    Our software is simple to use, allowing organizers to launch an auction in minutes. That doesn't mean it lacks features. Bidders enjoy max bidding, outbid notifications, and popcorn bidding.
    Learn More
  • 5
    OpenSCAD Graph Editor

    OpenSCAD Graph Editor

    OpenSCAD Graph Editor

    OpenSCAD Graph Editor is a graphical user interface for OpenSCAD that allows you to create 3D models by connecting nodes in a graph. The editor will automatically generate OpenSCAD code for you. It integrates with the OpenSCAD program so you can preview your models in real-time while you are editing the graph. Please check the manual to find out how to install and use the program.
    Downloads: 0 This Week
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  • 6
    Euler Math Toolbox

    Euler Math Toolbox

    Numerical and Symbolic Math Tool

    Euler is a powerful all-in-one numerical software and includes Maxima for seamless symbolic computations. Euler supports Latex for math display, Povray for photo-realistic 3D scenes, Python, Matplotlib and C for scripting, and contains a full programming language. Features include libraries for numerical algorithms, optimization, plotting in 2D and 3D, graphics export, a complete help system, tutorials and examples. Euler runs in Windows natively, or in Linux via Wine. It is completely...
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    Downloads: 85 This Week
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  • 7
    MathGL

    MathGL

    A library for scientific data visualization

    A free cross-platform library of fast C++ routines for the plotting of up to 3-ranged data. It can export to bitmap and vector EPS/SVG files. There are window interfaces (GLUT/FLTK/Qt) and console tools. MathGL can be used from C/Fortran/Python/Octav/Lua
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    Downloads: 64 This Week
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  • 8
    Java Treeview - An Open Source, Extensible Viewer for Microarray Data in the PCL or CDT format
    Downloads: 38 This Week
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  • 9
    EtherApe
    EtherApe is a graphical network monitor modeled after etherman. Featuring Ethernet, IP, TCP, FDDI, Token Ring and wireless modes, it displays network activity graphically. Hosts and links change in size with traffic. Color coded protocols display.
    Downloads: 50 This Week
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  • PageDNA: Web-to-Print eCommerce Software Icon
    PageDNA: Web-to-Print eCommerce Software

    eCommerce for Print, Signs and Fulfillment Trusted by In‑Plants and Commercial Print Leaders

    PageDNA enables successful eCommerce strategies for commercial print sales organizations, internal print shops, and brand owners. PageDNA’s online ordering platform increases print volume while decreasing touch costs for all stakeholders: clientele, print operations, and the organizations they support.
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  • 10
    GLE - Graphics Layout Engine
    GLE is a graphics scripting language designed for creating publication quality graphs, plots, diagrams, figures, and slides. Text can be formatted with LaTeX/TeX markup. Its output formats include EPS, PS, PDF, JPEG, and PNG. GLE can operate as either a command line or GUI application.
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    Downloads: 53 This Week
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  • 11
    pfstools for HDR images
    pfstools - a set of programs for reading, writing, manipulating and viewing high-dynamic range (HDR) images and video frames. pfscalibration - photometric calibration of cameras and HDR images from multiple exposures. pfstmo - tone mapping operators.
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    Downloads: 41 This Week
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  • 12
    Algorithm Visualizer

    Algorithm Visualizer

    Interactive Online Platform that Visualizes Algorithms from Code

    Hacker Scripts is a light-hearted collection of small automation and demo scripts that solve amusing everyday tasks or illustrate quick integrations with external services. The repo collects short programs (originally a set of shell and Ruby scripts) and many community contributed ports in other languages to show “how you might automate X” — for example sending a quick SMS, firing off an email, or triggering a coffee maker — with examples and scheduling snippets included. The README explains...
    Downloads: 5 This Week
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  • 13
    TimingEditor

    TimingEditor

    TimingEditor is a tool to graphically draw and edit timing diagrams.

    TimingEditor is a tool to graphically draw and edit timing diagrams.
    Downloads: 33 This Week
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  • 14
    MathMod

    MathMod

    MathMod is a mathematical modeling software

    ...MathMod allows to plot 3D mathematical surfaces, described by implicit or parametric equations, and offers a very large database of model samples that can be generated with it. It's Free and Open Source. Change-log for MathMod-13.0 (15/11/2025) 1) Scripts generator to add thickness to iso/parametric surfaces 2) Undo/Redo commands for navigating through previous scripts 3) New scripts, Bug-fixes, code optimization and documentation update For a complete list of changes made during the course of development, please visit: https://github.com/users/parisolab/projects/2
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    Downloads: 28 This Week
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  • 15
    GLScene

    GLScene

    GLScene Engine for Delphi & C++Builder VCL Windows 32/64

    GLScene is an OpenGL based 3D library for Delphi, C++Builder and Lazarus. It provides visual components and objects allowing description and rendering 3D scenes in graphic applications. Update of newer versions of the trunk has been moved to https://github.com/glscene
    Downloads: 64 This Week
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  • 16
    JaxoDraw

    JaxoDraw

    JaxoDraw: Feynman Diagrams made easy!

    JaxoDraw is a tool to generate Feynman diagrams in a mouse click-and-drag fashion. Graphs can be exported to a variety of graphics formats and arbitrary latex code can be used for labels to produce high-quality publishing-style figures.
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    Downloads: 51 This Week
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  • 17
    Drawj2d

    Drawj2d

    Draw vector graphics to scale using a descriptive language

    Drawj2d creates technical line drawings using a descriptive language. It writes pdf, svg, eps, emf and dxf vector graphics or png images. It runs on all platforms that run Java. It is inspired by Asymptote but with a tcl-like syntax and 2D only.
    Downloads: 71 This Week
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  • 18
    xoscope is a digital oscilloscope using input from a sound card or EsounD and/or a ProbeScope/osziFOX and will soon support Bitscope hardware. Includes 8 signal displays, variable time scale, math, memory, measurements, and file save/load.
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    Downloads: 31 This Week
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  • 19
    Atlas aims to provide high quality maps of the world for use in FlightGear, an open source flight simulator.
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    Downloads: 15 This Week
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  • 20

    Billiards Everything

    The Great Periodic Path Hunt at gwtokarsky.github.io

    Researchers, Mathematicians and Enthusiasts. Download "Billiards Everything" to discover new periodic billiard paths, an unresolved problem from 1775! Download "Billiards Covers" to see the most current list of periodic paths in triangles. Follow "The Great Periodic Path Hunt" at gwtokarsky.github.io for the latest news. Email tokarsky@ualberta.ca for feedback.
    Downloads: 32 This Week
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  • 21
    atomes

    atomes

    Analysis, visualization, edition of 3D atomistic models

    atomes is a Free (Open Source) cross-platform software licensed under the terms of the Affero GPL v3+ license. atomes is a toolbox developed to analyze, to visualize and to create/edit three-dimensional atomistic models. atomes also provides an advanced input preparation system for further calculations using well known molecular dynamics codes: - Classical MD : DL-POLY and LAMMPS - ab-initio MD : CPMD and CP2K - QM-MM MD : CPMD and CP2K atomes is developed by Dr. ...
    Downloads: 24 This Week
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  • 22
    Msc-generator

    Msc-generator

    Draws signalling charts, block diagrams and graphs from text input.

    NOTE! We have moved to https://gitlab.com/msc-generator/msc-generator All development happens there. Also, download new releases & submit issues there. A tool to draw various charts from textual descriptions. Currently, three types of charts are supported: Message Sequence Charts, generic Graphs, and Block Diagrams, with more to be added in the future. There is a command-line version for Linux and Mac (replacing mscgen), which now sports a GUI, as well. Msc-generator allows fine...
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    Downloads: 54 This Week
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  • 23
    WxMAP2
    A python-based system to diagnosis and make weather maps (wxmap) of numerical weather prediction models using the Grid Analysis and Display System (GrADS) from opengrads.org
    Downloads: 15 This Week
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  • 24
    Teem

    Teem

    Tools to process and visualize scientific data and images

    Teem is a set of C libraries for manipulation, measurement, and visualization of structured scientific data. Includes N-dimensional image I/O and processing, volume rendering, diffusion tensor processing, and more. Latest code via git clone http://git.code.sf.net/p/teem/teem.git . Join us at https://discord.gg/xBBqZGXkF7
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    Downloads: 23 This Week
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  • 25
    QUAST

    QUAST

    Quality Assessment Tool for Genome Assemblies

    QUAST performs fast and convenient quality evaluation and comparison of genome assemblies. It is maintained by the Gurevich lab at HIPS (https://helmholtz-hips.de/en/hmsb). For the most up-to-date description, please visit http://quast.sf.net. Below are just some highlights. QUAST computes several well-known metrics, including contig accuracy, the number of genes discovered, N50, and others, as well as introducing new ones, like NA50 (see details in the paper and manual). A...
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    Downloads: 32 This Week
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