Software Alternatives & Startups

cURL VS D (Programming Language)

Compare cURL VS D (Programming Language) and see what are their differences

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cURL logo cURL

cURL is a computer software project providing a library and command-line tool for transferring data...

D (Programming Language) logo D (Programming Language)

D is a language with C-like syntax and static typing.
  • cURL Landing page
    Landing page //
    2021-12-13
  • D (Programming Language) Landing page
    Landing page //
    2023-05-09

cURL features and specs

  • Versatility
    cURL supports a wide range of protocols including HTTP, HTTPS, FTP, and many more, making it a highly versatile tool for developers.
  • Cross-Platform
    cURL can be used on various operating systems including Windows, macOS, and Linux, providing consistency across different environments.
  • Command-Line Usage
    It can be easily used from the command line, enabling quick and powerful interactions with web services without the need for a graphical interface.
  • Automation
    cURL can be incorporated into scripts for automation, making it essential for repetitive tasks such as automated testing or continuous integration.
  • Support for Multiple Data Formats
    It can work with multiple data formats such as JSON, XML, and form-urlencoded, making it flexible for interacting with various APIs.
  • Open Source
    Being an open-source tool, cURL is free to use and has a large community that contributes to its continuous improvement and support.

Possible disadvantages of cURL

  • Steep Learning Curve
    For beginners, the variety of options and parameters available can be overwhelming, requiring time and effort to become proficient.
  • Limited Error Messages
    cURL sometimes provides minimal error messages, which can make debugging issues more complicated, especially for new users.
  • Security Concerns
    Improper handling of SSL certificates or sensitive data could lead to security vulnerabilities, requiring users to be cautious and knowledgeable.
  • Not User-Friendly
    As a command-line tool, it lacks a graphical user interface, which can make it less accessible for users who are not comfortable with terminal commands.
  • Manual Configuration
    Requires manual configuration for advanced options, which can be time-consuming and cumbersome for complex tasks.

D (Programming Language) features and specs

  • Performance
    D is designed to be a high-performance systems programming language, offering performance comparable to C and C++ through native machine code compilation.
  • Expressiveness
    D features a rich standard library and modern language constructs, such as garbage collection, first-class arrays, and advanced templating, making it easier to write expressive and maintainable code.
  • Memory Safety
    D offers optional garbage collection along with manual memory management. This hybrid approach can help in developing safer applications by reducing memory-related errors.
  • Interoperability
    D can easily interoperate with C API, enabling seamless integration with existing C libraries and systems. It also supports better C++ interoperability compared to other languages.
  • Built-in Unit Testing
    D has built-in support for unit tests, allowing developers to write and run tests as part of the language itself, facilitating test-driven development.
  • Concurrency
    D offers built-in concurrency support with message passing, similar to the actor model found in languages like Erlang, making it easier to write concurrent and parallel programs.

Possible disadvantages of D (Programming Language)

  • Adoption
    D is not as widely adopted as other languages like C, C++, or Java. This limited adoption means fewer libraries, frameworks, and community support.
  • Toolchain Maturity
    While D's compilers and tools have improved over the years, they may still lack the maturity and feature set of more established languages, which can affect developer productivity.
  • Learning Curve
    D's richness and combination of paradigms (such as imperative, object-oriented, and functional programming) can present a steep learning curve for new developers.
  • Garbage Collection
    Although D offers optional garbage collection, its reliance on it for memory safety might be seen as a drawback for real-time system development where deterministic memory management is crucial.
  • Ecosystem
    The ecosystem for D is less vibrant compared to more popular languages, leading to potentially fewer third-party libraries, tools, and resources.
  • Standard Library Documentation
    The standard library documentation can be inconsistent or less comprehensive compared to other languages, making it difficult for developers to fully utilize all features of the language.

Analysis of cURL

Overall verdict

  • Yes, cURL (curl.se) is considered good. It is a reliable and powerful tool widely used in the industry for handling various network-related tasks.

Why this product is good

  • cURL is highly regarded for its ease of use, cross-platform compatibility, and ability to support a wide range of protocols including HTTP, HTTPS, FTP, and more. It is often used for transferring data with URLs, making it versatile for developers and system administrators.

Recommended for

  • Developers needing to test and debug APIs
  • System administrators managing data transfers
  • Users automating web interactions
  • Anyone needing a flexible tool for command-line data transfers

Analysis of D (Programming Language)

Overall verdict

  • Overall, D is a solid programming language choice that balances performance with productivity. It may not be as widely adopted as some other languages, but it has a dedicated community and continues to evolve, making it a viable option for various programming tasks.

Why this product is good

  • The D programming language is considered good by many developers for various reasons. It combines the performance and low-level control of C/C++ with the expressive power and ease of use found in modern languages. D offers features like garbage collection, first-class functions, and compile-time function execution, providing both speed and flexibility. Its interoperability with C, the convenience of a powerful standard library (Phobos), and the availability of packages via the DUB package manager make it a practical choice for systems programming, application development, and rapid prototyping.

Recommended for

  • System programming enthusiasts looking for an alternative to C/C++
  • Developers interested in writing high-performance applications
  • Programmers who appreciate modern language features and strong community support
  • Projects requiring seamless C integration
  • Individuals looking for a language that supports easy code maintenance and scalability

cURL videos

BOUNCE CURL REVIEW | Curl Review Series #2

More videos:

  • Review - CURLS BLUEBERRY BLISS REVIEW | Curl Review Series #1
  • Review - Curls Triple Threat Review // Frizz Free Curly Hair
  • Tutorial - How to use CURL

D (Programming Language) videos

D Language Tutorial

Category Popularity

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API Tools
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0% 0
Programming Language
0 0%
100% 100
Developer Tools
100 100%
0% 0
OOP
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100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare cURL and D (Programming Language)

cURL Reviews

Top 20 Open Source & Cloud Free Postman Alternatives (2024 Updated)
cURL is a widely used command-line tool for transferring data with URLs. It supports a multitude of protocols, making it a versatile choice for API testing.
Source: medium.com
Top 10 HTTP Client and Web Debugging Proxy Tools (2023)
The uniqueness of cURL above others is that it supports different types of protocols, like HTTP, HTTPS, FTP, SFTP, POP3 SCP, and more. As a developer, you have to understand how cURL works.

D (Programming Language) Reviews

We have no reviews of D (Programming Language) yet.
Be the first one to post

Social recommendations and mentions

Based on our record, cURL should be more popular than D (Programming Language). It has been mentiond 129 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

cURL mentions (129)

  • The 2026 Toolchain Revolution: From Postman to CLI, Code to Prompts — What Stays and What Goes
    Postman dominated API development for over a decade because it made REST discovery, testing, and documentation accessible without deep command-line expertise. But 2026 has flipped that advantage. The rise of CLI-native, scriptable, and programmatic API tooling—driven by projects like Arc, HTTPie, and cURL's modern revitalization—has made the terminal the preferred workspace for 68% of backend engineers (per the... - Source: dev.to / 26 days ago
  • 7 Free Tools for Testing and Analyzing HTTP Caching Behavior
    Curl is the most reliable way to inspect HTTP headers from the command line. It makes actual HTTP requests to your server or CDN and displays the raw response headers. - Source: dev.to / 5 months ago
  • Testing Geo-Blocked Features with Docker on a Zero-Budget Setup
    Use open-source tools like Curl with proxy options for straightforward testing. - Source: dev.to / 7 months ago
  • The Ultimate Guide to Offline API Testing: 10 Tools That Work Without Internet
    cURL represents the foundational tool that inspired countless API clients. While not specifically designed for offline use, its versatility enables effective offline workflows through local servers and file-based operations. - Source: dev.to / 11 months ago
  • pyaction: Python and the GitHub CLI in a Docker Container
    This Docker image is designed to support implementing Github Actions With Python. It starts with the official python docker image As the base, which is a Debian OS. It specifically uses python:3-slim to keep the image size Down for faster loading of Github Actions that use pyaction. On top of the Base, we've installed curl Gpg, git, and the GitHub CLI. We added curl and gpg because they Are needed to install the... - Source: dev.to / about 1 year ago
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D (Programming Language) mentions (60)

  • Ask HN: What is your (AI) dev tech stack / workflow? (June 2026)
    I've spent 2 weeks (2-4h per day) to make D language[1] version of Sciter SDK [2] Choice of AI "tooling" was by accident - typed something like "how to define copy constructor in D for custom structure" in Microsoft's Copilot in Edge browser that gives context for AI. The answer was good enough for me and so I went with it further. [1] D language HQ : https://dlang.org/. - Source: Hacker News / 3 months ago
  • Rue: Higher level than Rust, lower level than Go
    > Mostly, I am not really trying to compete with C/C++/Rust on speed, but I'm not going to add a GC either. So I'm somewhere in there. Out of curiosity, how would you compare the goals of Rue with something like D[0] or one of the ML-based languages such as OCaml[1]? 0 - https://dlang.org/ 1 - https://ocaml.org/. - Source: Hacker News / 9 months ago
  • Pony: An actor-model, capabilities-secure, high-performance programming language
    The D language home page has something similar with a drop down with code examples https://dlang.org/. - Source: Hacker News / about 1 year ago
  • Show HN: D++lang – A new systems programming language with Python-like syntax
    What is this? There's a lot of red flags here. * The name "D" for a programming language was taken in 1999: https://dlang.org/. - Source: Hacker News / about 1 year ago
  • Koto Programming Language
    >For me the biggest gap in programming languages is a rust like language with a garbage collector, instead of a borrow checker. I cannot agree more that's the much needed sweet spot/Goldilock/etc. Personally I have been advocating this approach for some times. Apparently the language is already widely available and currently has stable and wide compiler support including the venerable GNU compiler suite (GDC). It... - Source: Hacker News / over 1 year ago
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What are some alternatives?

When comparing cURL and D (Programming Language), you can also consider the following products

HTTPie - CLI HTTP that will make you smile. JSON support, syntax highlighting, wget-like downloads, extensions, and more.

C++ - Has imperative, object-oriented and generic programming features, while also providing the facilities for low level memory manipulation

Insomnia REST - Design, debug, test, and mock APIs locally, on Git, or cloud. Build better APIs collaboratively for the most popular protocols with a dev‑friendly UI, built-in automation, and an extensible plugin ecosystem.

Nim (programming language) - The Nim programming language is a concise, fast programming language that compiles to C, C++ and JavaScript.

Postman - The Collaboration Platform for API Development

V (programming language) - Simple, fast, safe, compiled language for developing maintainable software.