Open Source Formats and Protocols

D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS. D3’s emphasis on web standards gives you the full capabilities of modern browsers without tying yourself to a proprietary framework, combining powerful visualization components and a data-driven approach to DOM manipulation. D3 allows you to bind arbitrary data to a Document Object Model (DOM), and then apply data-driven transformations to the document. For example, you can use D3 to generate an HTML table from an array of numbers. Or, use the same data to create an interactive SVG bar chart with smooth transitions and interaction. D3 is not a monolithic framework that seeks to provide every conceivable feature. Instead, D3 solves the crux of the problem: efficient manipulation of documents based on data. This avoids proprietary representation and affords extraordinary flexibility, exposing the full capabilities of web standards such as HTML, SVG, and CSS.

Parse HTML into JSON. Himalaya bundles well with Browersify and Webpack. Himalaya transforms HTML into JSON, that's it. Himalaya is synchronous and does not require any complicated callbacks. Himalaya does not cut corners and returns an accurate representation of the HTML supplied. To remove whitespace, post-process the JSON; check out an example script. Himalaya can include the start and end positions of nodes in the parse output. To enable this, you can pass parse the parseDefaults extended with includePositions: true. Himalaya provides a stringify method. The following example parses the HTML to JSON then parses the JSON back into HTML.

Library for decoding InterPlay ACM Audio format. Includes command line tool and plugins for WinAmp, GStreamer and XMMS family (XMMS, BMP, Audacious).

Methanol is a scriptable multi-purpose web crawling system with an extensible configuration system and speed-optimized architectural design. Methabot is the web crawler of Methanol.

Observable Plot is a free, open-source JavaScript library to help you quickly visualize tabular data. It has a concise and (hopefully) memorable API to foster fluency — and plenty of examples to learn from and copy-paste. In the spirit of show don’t tell, below is a scatterplot of the height and weight of Olympic athletes (sourced from Matt Riggott), constructed using a dot mark. We assign columns of data (such as weight) to visual properties (such as the dot’s x), and Plot infers the rest. You can configure much more, if needed, but Plot’s goal is to help you get a meaningful visualization quickly. Plot employs a layered grammar of graphics inspired by Vega-Lite, ggplot2, Wilkinson’s Grammar of Graphics, and Bertin’s Semiology of Graphics. Plot rejects a chart typology in favor of marks, scales, and transforms. Plot can be readily extended in JavaScript, whether to define a channel, a transform, or even a custom mark.

Tonic EPC is an EPC (Electronic Product Code) Encoder/Decoder library written in C#. It aims to support the latest EPC TAG Data Standard (see http://www.gs1.org/gsmp/kc/epcglobal/tds/) with focus on id and tag uri handling. Have a look at the project wiki for further information.

Build HTML5 web apps based on DSL (Domain Specific Language) for Delphi/FreePascal/Lazarus: - XMLGram to create XMLServices using DBExtract to select from DB, DBBatch to update DB, macros using programming patterns such as Multicast and RetroFit, - XQL (eXtensible Query Language) to select records in the embedded database XQLite, - XML to load/store record/dataset, - XTL (eXtensible Template Language) to design HTML5 pages based on templates, includes templates for multiple layouts: desktop, mobile and tablet devices XMLRAD includes an Embedded Web Server running natively on Windows and Linux with Delphi/FreePascal/Lazarus.

A rules engine expressed in JSON. json-rules-engine is a powerful, lightweight rules engine. Rules are composed of simple json structures, making them human-readable and easy to persist.

pngacidbath is the one true PNG image brute force compressor. While other tools simply run down a list of "intelligent" compressor algorithms (some known as zlib methods), pngacidbath tries every byte combination to come up with THE smallest file.

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.

XDBM version 2 will be an XQuery implementation that uses EXIP to handle binary XML in the EXI format adopted by the W3C. It will, like EXIP, aim to be as small as possible so that it runs well on resource constrained devices. It is still in the project design stage.