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| 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
            The core of extensible programming is defining functions. Python allows mandatory and optional arguments, keyword arguments, and even arbitrary argument lists. Whether you're new to programming or an experienced developer, it's easy to learn and use Python. Python can be easy to pick up whether you're a first-time programmer or you're experienced with other languages. The following pages are a useful first step to get on your way to writing programs with Python! The community hosts conferences and meetups to collaborate on code, and much more. Python's documentation will help you along the way, and the mailing lists will keep you in touch. The Python Package Index (PyPI) hosts thousands of third-party modules for Python. Both Python's standard library and the community-contributed modules allow for endless possibilities.
             | About
            QuintaDB is an online web form and database builder. You do not need to spend time learning any programming language or web frameworks. Create and customize forms, charts, maps in a few clicks and put them on your forum, blog or web page. Automate your business management. Full control over work on apps. Email and SMS notifications. Ability to specify conditional actions and conditional formatting. Customer portal. Storing data online in a relational database with a usable and effective interface, without the need to purchase your own server. 24-hour access to information from anywhere in the world. Integration of web forms, tables, graphs, maps as a widget on a web page, forum or blog. Wide opportunities for customization allows you to create an individual design of the widget.
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| Platforms Supported
            
                Windows
            
            
         
            
                Mac
            
            
         
            
                Linux
            
            
         
            
                Cloud
            
            
         
            
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                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
            
            
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| Audience
        Developers in need of a powerful Programming Language solution
         | Audience
        Developers interested in a beautiful but advanced programming language
         | Audience
        Businesses of all sizes searching for a powerful Relational Database solution
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| Support
            
                Phone Support
            
            
         
            
                24/7 Live Support
            
            
         
            
                Online
            
            
         | Support
            
                Phone Support
            
            
         
            
                24/7 Live Support
            
            
         
            
                Online
            
            
         | Support
            
                Phone Support
            
            
         
            
                24/7 Live Support
            
            
         
            
                Online
            
            
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| API
            
                Offers API
            
            
         | API
            
                Offers API
            
            
         | API
            
                Offers API
            
            
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| Screenshots and Videos | Screenshots and Videos | Screenshots and Videos | ||||
| Pricing
        Free
        
     
            
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        Free
        
     
            
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        Free
        
     
            
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Reviews/ | 
Reviews/ | 
Reviews/ | ||||
| Training
            
                Documentation
            
            
         
            
                Webinars
            
            
         
            
                Live Online
            
            
         
            
                In Person
            
            
         | Training
            
                Documentation
            
            
         
            
                Webinars
            
            
         
            
                Live Online
            
            
         
            
                In Person
            
            
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                In Person
            
            
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| Company InformationCrystal crystal-lang.org | Company InformationPython Founded: 1991 www.python.org | Company InformationQuintaDB Founded: 2007 Ukraine quintadb.com | ||||
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| Categories | Categories | Categories | ||||
| Database Features
            
                Backup and Recovery
            
            
         
            
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                NOSQL
            
            
         
            
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                Queries
            
            
         
            
                Relational Interface
            
            
         
            
                Virtualization
            
            
         Relational Database Features
            
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                Referential Integrity
            
            
         
            
                SQL DDL Support
            
            
         
            
                SQL DML Support
            
            
         
            
                System Catalog
            
            
         
            
                Unicode Support
            
            
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| Integrations
            
                
    AI21 Studio
            
            
         
            
                
    AMPL
            
            
         
            
                
    CZ CELLxGENE Discover
            
            
         
            
                
    Elastic APM
            
            
         
            
                
    Gemini
            
            
         
            
                
    GitHub Copilot
            
            
         
            
                
    Google Chrome
            
            
         
            
                
    Mako
            
            
         
            
                
    Monster API
            
            
         
            
                
    Moonglow
            
            
         | Integrations
            
                
    AI21 Studio
            
            
         
            
                
    AMPL
            
            
         
            
                
    CZ CELLxGENE Discover
            
            
         
            
                
    Elastic APM
            
            
         
            
                
    Gemini
            
            
         
            
                
    GitHub Copilot
            
            
         
            
                
    Google Chrome
            
            
         
            
                
    Mako
            
            
         
            
                
    Monster API
            
            
         
            
                
    Moonglow
            
            
         | Integrations
            
                
    AI21 Studio
            
            
         
            
                
    AMPL
            
            
         
            
                
    CZ CELLxGENE Discover
            
            
         
            
                
    Elastic APM
            
            
         
            
                
    Gemini
            
            
         
            
                
    GitHub Copilot
            
            
         
            
                
    Google Chrome
            
            
         
            
                
    Mako
            
            
         
            
                
    Monster API
            
            
         
            
                
    Moonglow
            
            
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