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

  • $300 Free Credits to Build on Google Cloud Icon
    $300 Free Credits to Build on Google Cloud

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    99.99% Uptime for MySQL and PostgreSQL Databases

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  • 1
    DxWnd

    DxWnd

    Window hooker to run fullscreen programs in window and much more...

    Windows hooker - intercepts system calls to make Win32 programs run in a window, to enhance application compatibility, to enhance video modes, to stretch timing and emulate CD disk data and audio tracks. It is typically very useful to run old Windows games.
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    Downloads: 6,206 This Week
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  • 2
    DeckCraft

    DeckCraft

    Presentations and slide shows

    DeckCraft is an open-source presentation editor written in pure Rust as a clean-room reimplementation of familiar PowerPoint workflows. It can create slide decks with masters, layouts, themes, placeholders, shapes, pictures, tables, charts, notes, comments, and custom slide sizes. Presentation tools include transitions, animations, full-screen slide shows, and reusable formatting inherited from layouts and masters. The application can open and save PowerPoint files while also maintaining its own editable project structure. Every interface action maps to a stable command that scripts and AI agents can invoke directly. Automation is available through a command-line utility, JSON control channel, and MCP server. DeckCraft runs on macOS, Windows, Linux, FreeBSD, and the browser and is currently progressing through its alpha stage.
    Downloads: 386 This Week
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  • 3
    OpenSong

    OpenSong

    Lyric projection and chord charts for church musicians

    OpenSong is a free software application for managing chords and lyrics sheets (lead sheets), presenting lyrics (and custom slides) using a projector, and much more! Great for worship leaders and musicians!
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    Downloads: 529 This Week
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  • 4
    Mermaid

    Mermaid

    Diagram and flowchart generation from text similar to markdown

    Mermaid is a JavaScript-based diagram and flowchart generating tool that uses markdown-inspired text for fast and easy generation of diagrams and charts. Forget about using heavy tools to explain your code. Mermaid greatly simplifies documentation with its simple markdown-like script language, and offers a great range of diagram and chart options. The latest version of Mermaid comes with a number of bug fixes and enhancements, as well as a new diagram type, entity relationship diagrams. Its range of available diagrams include flowcharts, sequence diagrams, gantt diagrams and more, with new ones continuously being developed.
    Downloads: 55 This Week
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  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

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  • 5
    JFreeChart
    JFreeChart is a free (LGPL) chart library for the Java(tm) platform. It supports bar charts, pie charts, line charts, time series charts, scatter plots, histograms, simple Gantt charts, Pareto charts, bubble plots, dials, thermometers and more. *** JFreeChart has moved to GitHub: https://github.com/jfree/jfreechart ***
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    Downloads: 126 This Week
    Last Update:
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  • 6
    Chart.js

    Chart.js

    Simple yet flexible JavaScript charting for designers & developers

    Chart.js is a Javascript library that allows designers and developers to draw all kinds of charts using the HTML5 canvas element. Chart js offers a great array of simple, clean charts including animated and interactive versions. Chartjs is an easy way to include beautiful and engaging charts into your website for free.
    Downloads: 18 This Week
    Last Update:
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  • 7
    softProjector
    Наша цель это создать программу которая простая в использование, но мощная в своих возможностях. Our goal is to create a program that is powerful, yet easy to use.
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    Downloads: 40 This Week
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  • 8
    Album Shaper strives to be the most friendly, easy to use, cross platform application for organizing, annotating, framing, enhancing, stylizing, and sharing your digital photos.
    Downloads: 46 This Week
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  • 9
    PDF Presenter
    An easy to use presentation software with focus on PDF documents. External display / projector presentations: PDF, images, text and whiteboard with annotations; intuitive user interface, optimal mouse and pen input handling.
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    Downloads: 59 This Week
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  • Paessler: Easy to Use With Enterprise Power. Free Trial Icon
    Paessler: Easy to Use With Enterprise Power. Free Trial

    A low-code dashboard makes monitoring intuitive for any admin, while scripting and custom sensors give experts full control.

    You shouldn't have to choose between a monitoring tool that's easy to use and one that's powerful enough for a complex environment. PRTG's low-code interface lets any admin build dashboards, set alerts and monitor devices without scripting, while custom sensors and full API access are there when your team needs deeper control. One platform, no compromise. Download a free 30-day trial now.
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  • 10
    CasparCG: Pro Video & Graphics Play-Out

    CasparCG: Pro Video & Graphics Play-Out

    Pro Video & Graphics Play-Out SW, proven in 24/7 broadcasts since 2006

    Playback and record video, graphics and audio to multiple screens via DVI/HDMI/SDI in SD, HD, 2K and 4K.
    Downloads: 39 This Week
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  • 11
    Impressive
    Impressive is a program that displays PDF presentation slides with style. Smooth alpha-blended slide transitions are provided for the sake of eye candy, but in addition to this, Impressive offers some unique tools that are very useful for presentations.
    Downloads: 34 This Week
    Last Update:
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  • 12
    MPAndroidChart

    MPAndroidChart

    A powerful Android chart view / graph view library

    MPAndroidChart is a powerful chart library for Android that offers a beautiful and comprehensive range of charts and graphs. Powerful and very easy to use, it supports the creation of bar-, line-, pie-, bubble-, scatter-, radar- and candlestick charts, as well as scaling, dragging and animations. Charts are rendered cleanly and are visually engaging. Visualizing your data exactly how you want is so much easier with MPAndroidChart. To see more great examples of MPAndroidChart, download the MPAndroidChart Example App on Google Play.
    Downloads: 6 This Week
    Last Update:
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  • 13
    Voltura Air

    Voltura Air

    Turn your phone into a Windows remote, screen viewer and webcam

    Voltura Air turns a phone, tablet, or browser into a wireless remote for Windows 11. Use a touch trackpad, keyboard, or supported phone motion controls; view and control your PC screen with sound; or use your phone as a Windows webcam. Manage PC files and transfer individual files between devices, switch open apps, control media and presentations, dictate and exchange text, and build custom remote-control screens. Power users can open an interactive PowerShell terminal. An optional read-only AI Assistant uses your existing Codex setup. Install the Windows host, scan its QR code, and open the controller in your browser. No mobile app-store installation or Voltura account is required. Direct LAN is the default, with optional Cloud relay for networks that block inbound connections. Device permissions stay under your control. Free and open source under the MIT license. Standard, full, and portable Windows x64 packages are available.
    Downloads: 118 This Week
    Last Update:
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  • 14
    PHPlot

    PHPlot

    A PHP class for creating graphs, plots, charts

    PHPlot is a PHP graphics class for creating charts and plots. It works with PHP5 and the PHP GD extension to produce PNG, GIF, or JPEG images. TrueType fonts (TTF) are optional, or built-in GD fonts can be used. The available plot types include: area, bars, line/points, lines, pie, points, squared, stacked-bars, and thin bar-line. Labels, tick marks, plot legend, and X/Y axes and more are all configurable. Images can be imported as a background, multiple graphs can be drawn on one image, and images can be saved to disk or returned to a browser.
    Downloads: 114 This Week
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  • 15
    PhotoFilmStrip
    PhotoFilmStrip creates movies out of your pictures in just 3 steps. First select your photos, customize the motion path and render the video. There are several output possibilities for VCD, SVCD, DVD up to FULL-HD. Creates animated slideshows.
    Downloads: 15 This Week
    Last Update:
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  • 16
    Shower Presentation Template

    Shower Presentation Template

    Shower HTML presentation engine

    Shower Presentation Template is a shower HTML presentation engine. Built on HTML, CSS and vanilla JavaScript, works in all modern browsers. Themes are separated from engine, and comes with fully keyboard accessible. Printable to PDF and includes Ribbon and Material themes, and core with plugins. You’ll need Node.js installed on your computer. Latest stable versions of Chrome, Edge, Firefox, and Safari are supported.
    Downloads: 3 This Week
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  • 17
    A small, flexible image gallery PHP web application that does not require a database. Administration can be done directly via FTP or using the web based admin featuring advanced metadata & user permissions. Fully template driven & multilingual.
    Downloads: 28 This Week
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  • 18
    A Python interface to the gnuplot plotting program.
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    Downloads: 15 This Week
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  • 19
    ZedGraph is a class library, user control, and web control for .net, written in C#, for drawing 2D Line, Bar, and Pie Charts. It features full, detailed customization capabilities, but most options have defaults for ease of use.
    Downloads: 12 This Week
    Last Update:
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  • 20
    A easy basic in order to make games in 2d style amos for linux and windows The basic it comprises a module runtime, ide examples and games.
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    Downloads: 72 This Week
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  • 21
    Ken Burns Slideshow

    Ken Burns Slideshow

    Instant, portable, fullscreen slideshow with Ken Burns effect and more

    Create instant & real-time full-screen slideshow with the Ken Burns effect (and more!) for a set of images. Added several additional transition animations. 支持简体中文! Refer to readme.md in Files for a full description. Video preview: https://youtu.be/ch2UjN9nwIc Video preview (for China): http://v.youku.com/v_show/id_XMTQ5NTM0NTAxMg==.html For detailed description, change log and the latest dev build: https://github.com/changbowen/Ken-Burns-Slideshow
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    Downloads: 20 This Week
    Last Update:
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  • 22
    Time_limit

    Time_limit

    A windowed/full-screen countdown timer.

    A windowed / full-screen countdown timer. Colour and font size changes are used as warnings. Progress-bar gives a glance at the time stream. Three different modes are available: - time left; - time passed; - ordinary clock. When the time is over several possibilities are available: - to show the defined message; - to continue count the time; - to launch another application; - to close the count-down timer. Useful for speech, lecture or presentation timing. Colour / font / time limits can be changed using settings window and hot-keys. To change current time use the mouse wheel. By clicking on progress-bar, the timer mode is toggled.
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    Downloads: 37 This Week
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  • 23
    PDF Clown

    PDF Clown

    General-Purpose PDF Library for Java and .NET

    PDF Clown is a general-purpose Java and .NET library for manipulating PDF files through multiple abstraction layers, rigorously adhering to PDF 1.7 specification (ISO 32000-1). This project aims to provide a universal access to PDF files (creation, reading, editing, rendering...) through an accurate and elegant object-oriented API. * Features: http://pdfclown.org/overview/features/ * Overview: http://pdfclown.org/overview/architecture/ * Website: http://pdfclown.org/ * Blog: http://www.pdfclown.org/blog/ * Twitter: https://twitter.com/PDFClown
    Downloads: 13 This Week
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  • 24
    WL Show

    WL Show

    Projete louvores em sua igreja com este programa

    Wl Show, é um programa gratuito de projeção. Com ele é possível exibir sem complicações, transições, vídeos de fundo, e o que precisar para deixar o Datashow de sua igreja dinâmico e de rápido desempenho. Acesse http://svamaster.com e tenha mais informações.
    Downloads: 30 This Week
    Last Update:
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  • 25
    LibVNCServer/LibVNCClient are cross-platform C libraries that allow you to easily implement VNC server or client functionality in your program.
    Downloads: 12 This Week
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