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

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  • 1
    Skim

    Skim

    A PDF Reader and Note-taker for OS X

    Skim is a PDF reader and note-taker for OS X. It is designed to help you read and annotate scientific papers in PDF, but is also great for viewing any PDF file. Skim requires OS X 10.10 or higher.
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    Downloads: 19,751 This Week
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  • 2
    NAPS2 - Not Another PDF Scanner

    NAPS2 - Not Another PDF Scanner

    Scan documents to PDF and other file types, as simply as possible.

    Visit NAPS2's home page at www.naps2.com. NAPS2 is a document scanning application with a focus on simplicity and ease of use. Scan your documents from WIA- and TWAIN-compatible scanners, organize the pages as you like, and save them as PDF, TIFF, JPEG, PNG, and other file formats. Available on Windows, Mac, and Linux. NAPS2 is currently available in over 40 different languages. Want to see NAPS2 in your preferred language? Help translate! See the wiki for more details.
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    Downloads: 668 This Week
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  • 3
    KOReader

    KOReader

    An ebook reader application supporting PDF, DjVu, EPUB, FB2, etc.

    KOReader is a document viewer for E Ink devices. Supported fileformats include EPUB, PDF, DjVu, XPS, CBT, CBZ, FB2, PDB, TXT, HTML, RTF, CHM, DOC, MOBI and ZIP files. It’s available for Kindle, Kobo, PocketBook, Android and desktop Linux. Runs on embedded devices (Cervantes, Kindle, Kobo, PocketBook, reMarkable), Android and Linux computers. Developers can run a KOReader emulator in Linux and MacOS. Multi-lingual user interface with a highly customizable reader view and many typesetting options. You can set arbitrary page margins, override line spacing and choose external fonts and styles. It has multi-lingual hyphenation dictionaries bundled into the application. Custom UI without animation, with paginated menus, adjustable text contrast, and easy zoom to fit content or page in paged media. Look up words with StarDict dictionaries / Wikipedia, add your own online OPDS catalogs and RSS feeds, share ebooks with other KOReader devices wirelessly.
    Downloads: 91 This Week
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  • 4
    Cool Reader

    Cool Reader

    A cross-platform XML/CSS based eBook reader

    CoolReader is fast and small cross-platform XML/CSS based eBook reader for desktops and handheld devices. Supported formats: FB2, TXT, RTF, DOC, TCR, HTML, EPUB, CHM, PDB, MOBI. Platforms: Win32, Linux, Android. Ported on some eInk based devices.
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    Downloads: 415 This Week
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  • 5
    VGMToolbox is a C# based tool to assist VGM collectors and dumpers. It includes tools to extract, optimize, and build VGM formats as well as auditing and exploration utilities. [GBS, KSS, MDX, NSF(E), SID, S98, SPC, VGM, XA, XMA, xSF (PSF/PSF2/etc)]
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    Downloads: 417 This Week
    Last Update:
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  • 6
    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: 266 This Week
    Last Update:
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  • 7
    libmng -THE reference library for reading, displaying, writing and examining Multiple-Image Network Graphics. MNG is the animation extension to the popular PNG image-format.
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    Downloads: 1,101 This Week
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  • 8
    FLAC is a free lossless compressed audio format which supports streaming and archival. The FLAC project maintains the format and provides a reference encoder/decoder and input plugins for several popular audio players.
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    Downloads: 189 This Week
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  • 9
    Free editor for PDF documents. Complete editing of PDF documents is possible with PDFedit. You can change raw pdf objects (for advanced users) or use many gui functions. Functionality can be easily extended using a scripting language (ECMAScript).
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    Downloads: 187 This Week
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    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

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  • 10
    LaTeXDraw

    LaTeXDraw

    Vector drawing program for LaTeX using PSTricks

    LaTeXDraw is a graphical drawing editor for LaTeX. LaTeXDraw can be used to 1) generate PSTricks code; 2) directly create PDF or PS pictures.
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    Downloads: 104 This Week
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  • 11
    XMLTV

    XMLTV

    XMLTV obtains and processes TV listings data

    XMLTV is a set of programs to process TV (tvguide) listings and help manage your TV viewing, storing listings in an XML-based format. There are utilities to download TV listings for many countries, filter programs and Perl libraries to process listings. Our code is now available on Github at https://github.com/XMLTV/xmltv and new issues should be reported at https://github.com/XMLTV/xmltv/issues
    Downloads: 75 This Week
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  • 12
    svelte-jsoneditor

    svelte-jsoneditor

    Web-based tool to view, edit, format, repair, query, & transform JSON

    A web-based tool to view, edit, format, transform, and validate JSON. The library is written with Svelte, but can be used in plain JavaScript too, and in any framework (SolidJS, React, Vue, Angular, etc). View and edit JSON, has a low-level text editor and high-level tree view and table view. Format (beautify) and compact JSON. Sort, query, filter, and transform JSON. JSON schema validation and pluggable custom validation. Color highlighting, undo/redo, search and replace. Utilities like a color picker and timestamp tag. Handles large JSON documents up to 512 MB.
    Downloads: 13 This Week
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  • 13
    Game Extractor

    Game Extractor

    Open and edit the archive files used in over 5700 games.

    Reads and writes archives used in many popular games. Great for mod development and game translations. Supports over 5700 games, with more games added through small plugins. Also shows file previews and converts them to different formats.
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    Downloads: 340 This Week
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  • 14
    pstoedit

    pstoedit

    converts PostScript or PDF files to other vector graphics formats

    pstoedit is a tool converting PostScript and PDF files into various other formats suported by different drawing editors. As a prerequesite it needs GhostScript to be installed (binary installation is sufficient).
    Downloads: 75 This Week
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  • 15
    html2canvas

    html2canvas

    A JavaScript HTML screenshot renderer

    html2canvas is a JavaScript HTML renderer. The script provides you with the tools to take screenshots of webpages directly on the browser. The screenshot is based on the DOM and therefore, it may not be 100% accurate to the real representation, given that it is not an actual screenshot, but a type of screenshot built based on the available data and information of the page. The script renders such page as a canvas image, by reading the DOM and the different styles of the featured elements. It doesn't require rendering from the server, given that the image is created on the user's browser. However, as it is heavily dependent on the browser, the library is not to be used in nodejs. It can't circumvent any browser content policy restrictions and to render cross-origin content a proxy will be needed to get the content to the same origin.
    Downloads: 12 This Week
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  • 16
    Google2SRT

    Google2SRT

    Download, save and convert multiple subtitles from YouTube videos

    Google2SRT allows you to download, save and convert multiple subtitles and translations from YouTube and Google Video to SubRip (.srt) format, which is recognized by most video players. You can download XML subtitles or simply type video's URL, Google2SRT will do the rest.
    Downloads: 58 This Week
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  • 17
    Djvu-Spec Pdf 2 Djvu Converter

    Djvu-Spec Pdf 2 Djvu Converter

    Convert pdf to a djvu using profiles with all options of pdf2djvu

    DjVu is a good format to distribute documents and books. DjVu need no fonts, support text layer and outline. With Djvu-Spec Pdf2Djvu Converter you can easy convert pdf to djvu. Portable version - link "Files"
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    Downloads: 55 This Week
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  • 18

    PoDoFo

    A PDF parsing, modification and creation library.

    The PoDoFo library is a free, portable C++ library. It can parse and modify existing PDF files and create new ones from scratch. It also includes several tools to work with PDF files. It features an unique approach which provides access to PDF documents via an object tree. Therefore, PDFs can be created and or manipulated using a simple tree structure. Development of PoDoFo has been moved to GitHub: https://github.com/podofo/podofo Please raise new issues in the GitHub project.
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    Downloads: 58 This Week
    Last Update:
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  • 19
    VueGL

    VueGL

    Vue.js components rendering 3D WebGL graphics reactively with three.js

    VueGL is a component library for rendering 3D graphics with Vue.js and three.js. Using VueGL, you can handle WebGL very easily. In addition, drawn graphics are responsively re-rendered when detecting data changes. Vue.js is one of the very popular frameworks for building web apps or interactive websites. three.js is a 3D graphics library to uses WebGL. It provides classes wrapping WebGL APIs. They aim for different targets to be rendered, Vue.js for DOM and three.js for WebGL context. These APIs are completely different and that causes a mess when we want them to work together.
    Downloads: 9 This Week
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  • 20
    YouTube Center

    YouTube Center

    Userscript designed to expand the functionality of YouTube

    YouTube Center is a userscript designed to expand the functionality of YouTube. It includes the ability to download the video you're watching, auto-selecting your preferred video quality and much more. YouTube Center is an extension for the browser that will enhance the experience on YouTube by adding tons of new and useful features. YouTube Center is a userscript designed to expand the functionality of YouTube. It includes the ability to download the video you're watching, auto selecting your preferred video quality and much more. We highly reccomend using DEV builds, as the stable build is nearly a year old, and much of its functionality is now broken. YouTube Center is available as the following extensions: Userscript, Firefox, Chrome, Opera, Safari and Maxthon. YouTube Center supports multiple languages. Your default language is automatically selected at default if it's available otherwise it will default to English.
    Downloads: 9 This Week
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  • 21
    The COLLADA Document Object Model (DOM) is an application programming interface (API) that provides a C++ object representation of a COLLADA XML instance document. Contact a project admin to become a developer!
    Downloads: 54 This Week
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  • 22
    HTMLViewer
    HTML Viewer Components for Delphi, Lazarus and C++Builder The HtmlViewer component set consists of the THtmlViewer, TFrameViewer, and TFrameBrowser components. All three are HTML document display components: THtmlViewer * The basic component. * THtmlViewer displays single (non-frame) documents. * It also forms the basis for the other two components. TFrameViewer * Displays both frame and single HTML documents. * TFrameViewer is oriented more for local file system use. TFrameBrowser * Also displays frame and single HTML documents. * TFrameBrower is oriented for use with local file systems and toward Internet style protocols and URL usage. * Additional code and/or components are generally required to get data from other sources than the local file system. These components Support most of the HTML 4.01 specifications with many additional popular HTML 5 enhancements. Many Cascading Style Sheet properties are also supported.
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    Downloads: 61 This Week
    Last Update:
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  • 23
    Responsively Lazy

    Responsively Lazy

    Lazy load responsive images

    Lazy load responsive images. The best lazy loading implementation available. Handles responsive images. Truly lazy (absolutely no unnecessary requests) SEO-friendly (valid HTML). It supports WebP. The things to customize are the padding-bottom style and the values of the src and data-srcset attributes. If you don't know the image aspect ratio you can skip the div tag and move the responsively-lazy class to the img tag. Responsively Lazy is very different from the other lazy loading libraries. They make you break your HTML by removing the src attribute, or make you put tiny version there or make you use <noscript> to make your images appear in Google Images. The lazy loading works in browsers supporting the srcset attribute. As of December 2017 that's 86.78%. Unsupported browsers will load the image in the src attribute. That's the image search engines and social networks will find, so it's better to make it high-resolution.
    Downloads: 8 This Week
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  • 24

    jpeg2pdf

    Create PDF from JPEG scans and photos

    Cross-platform command-line tool for creation of PDF documents from scans/photos of pages in JPEG (.jpg) format and the lightest weight ANSI C library to put multiple JPEG files into one PDF file. You can add handwritten comments to PDF scans (over original images) with xournal: http://xournal.sourceforge.net/ It supports graphics tablets and saves comments to PDFs as vector data.
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    Downloads: 39 This Week
    Last Update:
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  • 25

    SVG-cards

    Playing cards in SVG

    SVG-cards is a collection of decks of playing cards made with the SVG format. They feature high-quality design from different styles and countries (poker, bridge, french, spanish, etc...) and vectorial representation: it means at any resolution on any support, the quality will remain the same.
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    Downloads: 42 This Week
    Last Update:
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