XML

XML

World Wide Web Consortium (W3C)

About

CSS, short for Cascading Style Sheets, is a style sheet language used by web developers to structure the HTML and other elements of a website. CSS is one of the most widely used languages on the web. For style sheets to work, it is important that your markup be free of errors. A convenient way to automatically fix markup errors is to use the HTML Tidy utility. This also tidies the markup making it easier to read and easier to edit. I recommend you regularly run Tidy over any markup you are editing. Tidy is very effective at cleaning up markup created by authoring tools with sloppy habits. Each style property starts with the property's name, then a colon and lastly the value for this property. When there is more than one style property in the list, you need to use a semicolon between each of them to delimit one property from the next.

About

Crystal’s syntax is heavily inspired by Ruby’s, so it feels natural to read and easy to write, and has the added benefit of a lower learning curve for experienced Ruby devs. Crystal is statically type-checked, so any type errors will be caught early by the compiler rather than fail on runtime. Moreover, and to keep the language clean, Crystal has built-in type inference, so most type annotations are unneeded. All types are non-nilable in Crystal, and available variables are represented as a union between the type and nil. As a consequence, the compiler will automatically check for null references in compile time. Crystal’s answer to metaprogramming is a powerful macro system, which ranges from basic templating and AST inspection to types inspection and running arbitrary external programs.

About

NoSQL is a domain-specific programming language used for accessing, managing, and manipulating non-tabular databases. A NoSQL (originally referring to "non-SQL" or "non-relational") database provides a mechanism for storage and retrieval of data that is modeled in means other than the tabular relations used in relational databases. Such databases have existed since the late 1960s, but the name "NoSQL" was only coined in the early 21st century, triggered by the needs of Web 2.0 companies. NoSQL databases are increasingly used in big data and real-time web applications.NoSQL systems are also sometimes called Not only SQL to emphasize that they may support SQL-like query languages or sit alongside SQL databases in polyglot-persistent architectures. Many NoSQL stores compromise consistency (in the sense of the CAP theorem) in favor of availability, partition tolerance, and speed. Barriers to the greater adoption of NoSQL stores include the use of low-level query languages.

About

Extensible Markup Language (XML) is a simple, very flexible text format derived from SGML (ISO 8879). Originally designed to meet the challenges of large-scale electronic publishing, XML is also playing an increasingly important role in the exchange of a wide variety of data on the Web and elsewhere. This page describes the work being done at W3C within the XML Activity, and how it is structured. Work at W3C takes place in Working Groups. The Working Groups within the XML Activity are listed below, together with links to their individual web pages. You can find and download formal technical specifications here, because we publish them. This is not a place to find tutorials, products, courses, books or other XML-related information. There are some links below that may help you find such resources. You will find links to W3C Recommendations, Proposed Recommendations, Working Drafts, conformance test suites and other documents on the pages for each Working Group.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Web developers

Audience

Developers in need of a powerful Programming Language solution

Audience

Developers and database admins seeking a domain-specific programming language

Audience

Developers and professionals seeking a solution to build custom, enterprise-grade apps

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

CSS
Founded: 1996
www.w3schools.com/css/

Company Information

Crystal
crystal-lang.org

Company Information

NoSQL
Founded: 1996
United States
sourceforge.net/software/product/NoSQL/

Company Information

World Wide Web Consortium (W3C)
Founded: 1996
www.w3.org/XML/

Alternatives

Alternatives

Alternatives

Alternatives

Apache Groovy

Apache Groovy

The Apache Software Foundation
QML

QML

Qt
Zig

Zig

Zig Software Foundation
Swift

Swift

Apple
Dart

Dart

Dart Language
XAML

XAML

Microsoft
DbSchema

DbSchema

Wise Coders

Categories

Categories

Categories

Categories

Integrations

Codeit
GPT-5 nano
Gemma 2
InsertChat
Latenode
Legion AI
Llama 4 Scout
Neovim
Opera
Oracle Real Application Clusters (RAC)
PostgreSQL Maestro
Predator CNC Editor
RxDB
Serverless
TableFlow
Tangle
TinyMCE
Unremot
UseScraper
WebSmart

Integrations

Codeit
GPT-5 nano
Gemma 2
InsertChat
Latenode
Legion AI
Llama 4 Scout
Neovim
Opera
Oracle Real Application Clusters (RAC)
PostgreSQL Maestro
Predator CNC Editor
RxDB
Serverless
TableFlow
Tangle
TinyMCE
Unremot
UseScraper
WebSmart

Integrations

Codeit
GPT-5 nano
Gemma 2
InsertChat
Latenode
Legion AI
Llama 4 Scout
Neovim
Opera
Oracle Real Application Clusters (RAC)
PostgreSQL Maestro
Predator CNC Editor
RxDB
Serverless
TableFlow
Tangle
TinyMCE
Unremot
UseScraper
WebSmart

Integrations

Codeit
GPT-5 nano
Gemma 2
InsertChat
Latenode
Legion AI
Llama 4 Scout
Neovim
Opera
Oracle Real Application Clusters (RAC)
PostgreSQL Maestro
Predator CNC Editor
RxDB
Serverless
TableFlow
Tangle
TinyMCE
Unremot
UseScraper
WebSmart
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