Software Alternatives & Startups

ncdu VS Crystal (programming language)

Compare ncdu VS Crystal (programming language) and see what are their differences

ncdu

A disk usage analyzer with an ncurses interface, aimed to be run on a remote server where you...

Rating
0 reviews
Pricing
Open source
Crystal (programming language)

Programming language with Ruby-like syntax that compiles to efficient native code.

Rating
0 reviews
Pricing
Open source
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Crystal (programming language) should be more popular than ncdu. It has been mentioned 123 times since March 2021.

social mentions
24 vs 123
Disk Analyzer popularity
100% vs 0%
alternatives listed
56 vs 73

Base details

Website, pricing, platforms and company facts side by side.

ncdu
Crystal (programming language)
Website dev.yorhel.nl crystal-lang.org
Pricing
Open source
Open source
Listed in

Features and specs

What each product offers, as listed by its team.

ncdu 7 features
Crystal (programming language) 5 features
  • User-friendly Interface
    Ncdu provides a text-based user interface which is easy to navigate and offers clear, color-coded disk usage visualization.
  • Speed
    Ncdu is designed to be fast and efficient, able to quickly scan and index disk usage information even on large file systems.
  • Low Resource Consumption
    The application consumes minimal system resources, making it suitable for use on systems with limited resources.
  • Interactive
    Ncdu allows users to interactively browse through directories, delete files, and drill down to see detailed disk usage statistics.
  • Portability
    Ncdu is available for multiple platforms, including Linux, BSD, macOS, and Windows, making it versatile across different environments.
  • Open Source
    Being an open-source tool, users can freely inspect the code, suggest features, and contribute to the project.
  • Remote System Compatibility
    Ncdu can be used over SSH, which makes it convenient for managing disk usage on remote servers.

Possible disadvantages

  • Limited Advanced Features
    Ncdu primarily focuses on disk usage analysis and lacks some advanced features found in other tools such as detailed file metadata or advanced filtering options.
  • Text-based Interface Limitation
    While the text-based interface is quick and efficient, it may not be as intuitive or visually appealing as GUI-based disk usage analyzers for some users.
  • No Built-in Reporting
    Ncdu does not offer built-in functionality for generating comprehensive reports. Users have to manually compile data if detailed reports are needed.
  • Potential Learning Curve
    Beginners or users unfamiliar with command-line tools may find it challenging to get started and utilize all of ncdu's features effectively.
  • Lack of Detailed Visualization
    While ncdu offers a visual representation of disk usage, it doesn't provide more advanced visualizations like pie charts or graphs.
  • Performance
    Crystal is designed to have the performance of C, thanks to its compilation to efficient native code. Its static type system and low-level memory management capabilities allow optimized execution.
  • Syntax
    Crystal offers a syntax that is heavily inspired by Ruby, making it intuitive and familiar for Ruby developers. This can significantly reduce the learning curve and improve developer productivity.
  • Type Inference
    Crystal provides powerful type inference, enabling developers to write less boilerplate code while still benefiting from the safety and performance of a statically-typed language.
  • Concurrency
    Crystal supports lightweight concurrency with fibers, which allows developers to write efficient and scalable concurrent programs with a simpler syntax compared to traditional threading models.
  • Community and Ecosystem
    Crystal has an active and growing community. It also boasts a rich ecosystem with libraries and tools, making it easier for developers to find resources and support.

Possible disadvantages

  • Maturity
    Crystal is still a relatively young language compared to more established languages like Python or Java. This can mean fewer resources, libraries, and tools, as well as potential instability in certain areas.
  • Compilation Time
    Crystal's compilation times can be slower compared to interpreted languages, particularly for larger codebases. This can impact development workflows and iteration speed.
  • Binary Size
    Compiled Crystal programs tend to generate larger binary sizes compared to other compiled languages like Go or Rust. This can be a consideration for resource-constrained environments.
  • Platform Support
    Being less mature, Crystal may have fewer options for platform-specific optimizations and integrations, which could limit its use in certain specialized applications.
  • Tooling
    Although the situation is improving, Crystal's tooling ecosystem is not as mature as those of older languages. This can affect the availability and quality of IDE support, debugging tools, and other development aids.

Analysis

An editorial look at what each product does well and who it suits.

ncdu
Crystal (programming language)

Overall verdict

  • Yes, ncdu is considered a good tool for disk usage analysis due to its efficiency, speed, and ease of use. It is well-suited for users who want a lightweight and straightforward solution without the need for graphical interfaces.

Why this product is good

  • ncdu (NCurses Disk Usage) is a disk usage analyzer with an ncurses interface. It is designed to provide a fast and easy way to view and manage disk space usage on your system. With its simple text-based interface, you can quickly navigate directories and identify which files or directories are consuming the most space. This tool is particularly useful for system administrators and users who prefer working in a terminal environment.

Recommended for

  • System administrators who need to quickly identify disk space usage issues.
  • Users who prefer command-line tools over graphical user interfaces.
  • Anyone managing servers or computers remotely through SSH.
  • Those looking for a lightweight and efficient way to manage disk space on Unix-like systems.

Overall verdict

  • Crystal is considered a good choice for developers who appreciate the syntax and flexibility of Ruby but require the performance and safety of a compiled language. Its balance of readability and efficiency makes it ideal for projects where high performance is critical but developer productivity cannot be sacrificed. However, potential users should consider the relatively smaller community compared to more established languages.

Why this product is good

  • Crystal is designed to combine the elegance and productivity of Ruby with the performance and efficiency of a compiled language. It offers a syntax that is close to Ruby, making it easy to read and write, while its compiler produces highly optimized native code. The language features static type checking, which helps catch errors at compile time, and it comes with powerful concurrency support through lightweight fibers. Additionally, Crystal's extensive standard library and growing ecosystem make it suitable for a wide range of applications.

Recommended for

  • Developers who enjoy Ruby's syntax but need better performance.
  • Projects that require strong concurrency support.
  • Applications where native code performance is a priority.
  • Developers willing to explore a language with a smaller ecosystem.

Videos

Walkthroughs and reviews on video.

ncdu 3 videos + Add
Crystal (programming language) 0 videos + Add

ncdu - NCurses Disk Usage Utility - Linux TUI

More videos

  • - Lubuntu Screencast: Showing size of folders with du and ncdu
  • - Terminal File Manager - Amazing file manager in Terminal NCDU

No Crystal (programming language) videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
ncdu
Crystal (programming language)
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%

User comments

Share your experience with using ncdu and Crystal (programming language). For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

ncdu 24 mentions
Crystal (programming language) 123 mentions

View more

  • Ruby for Good
    Which can include type assertions but also a lot more. The agents seem to do well with this. I've also had good results using agents to write Crystal https://crystal-lang.org/ which is Ruby-like but does have the static types and... - Source: Hacker News / 5 months ago
  • Ask HN: What Are You Working On? (May 2026)
    Sounds a lot like Crystal, which is also similar to Ruby and features a green fiber runtime: https://crystal-lang.org/#concurrency. - Source: Hacker News / 5 months ago
  • A Grand Vision for Rust
    > 1. Go with a better type system. A compiled language, that has sum types, no-nil, and generics. I was looking for something like that and eventually found Crystal (https://crystal-lang.org) as a closest match: LLVM compiled, strong... - Source: Hacker News / 7 months ago

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Alternatives to ncdu and Crystal (programming language)

When comparing ncdu and Crystal (programming language), you can also consider the following products.