Nim VS rust

Compare Nim vs rust and see what are their differences.


Nim is a statically typed compiled systems programming language. It combines successful concepts from mature languages like Python, Ada and Modula. Its design focuses on efficiency, expressiveness, and elegance (in that order of priority). (by nim-lang)


Empowering everyone to build reliable and efficient software. (by rust-lang)
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Nim rust
344 2657
15,923 90,173
1.0% 2.1%
9.8 10.0
4 days ago 4 days ago
Nim Rust
GNU General Public License v3.0 or later GNU General Public License v3.0 or later
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of Nim. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-01-01.


Posts with mentions or reviews of rust. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-02-22.
  • Delving Deeper: Enriching Microservices with Golang with CloudWeGo
    7 projects | | 22 Feb 2024
    Built for the modern development landscape by embracing both Golang and Rust, CloudWeGo delivers advanced features and excellent performance metrics. As proof of its performance, benchmark tests have shown that Kitex surpasses gRPC by over 4 times in terms of QPS and latency, with a throughput increased by 51% - 70% in terms of QPS (Queries Per Second) and latency.
  • Fast memory vulnerabilities, written in 100% safe Rust
    9 projects | | 20 Feb 2024

    “Similarly, the reason why niko's approach is not yet implemented is simply that getting the type system to a point where we even can implement this is Hard. Fixing this bug is blocked on replacing the existing trait solver(s): #107374. A clean fix for this issue (and the ability to even consider using proof objects), will then also be blocked blocked on coinductive trait goals and explicit well formed bounds. We should then be able to add implications to the trait solver.

    So I guess the status is that we're slowly getting there but it is very hard, especially as we have to be incredibly careful to not break backwards compatibility.”

    9 projects | | 20 Feb 2024
    Because Rust doesn't have a specification, we can argue back and forth forever about whether something is part of the "language design". The point is that we know how to solve the problem by desugaring [1] in a way that everyone basically expects to happen already. It's not going to break a significant amount of code: even the bigger sledgehammer of banning contravariance on function types was measured to not have much of an impact.

    As far as I can tell, the main reason to argue "language design" vs. "compiler bug" is to imply that language design issues threaten to bring down the entire foundation of the language. It doesn't work like that. Rust's type system isn't like a mathematical proof, where either the theorem is true or it's false and one mistake in the proof could invalidate the whole thing. It's a tool to help programmers avoid memory safety issues, and it's proven to be extremely good at that in practice. If there are problems with Rust's type system, they're identified and patched.


    9 projects | | 20 Feb 2024
    I believe it really is a flaw in the language, it's impossible for any compiler to check contravariance properly in this edge case. I don't think anything in this link is incorrect: (and it seems the rustc types team endorses this analysis)

    I am not at all familiar with Miri. Does Miri consider a slightly different dialect of Rust where implicit constraints like this become explicit but inferred? Sort of like this proposal from the GH issue: but the "where" clause is inferred at compile time. If so I wouldn't call that a "fix" so much as a partial mitigation, useful for static analysis but not actually a solution to the problem in rustc. I believe that inference problem is undecidable in general and that rustc would need to do something else.

    9 projects | | 20 Feb 2024
    Seems to rely on at least one known compiler bug (admittedly one open since 2015)
  • json-responder 1.1: dynamic path resolution
    3 projects | | 12 Feb 2024
    hyper-based HTTP server generating JSON responses. Written in Rust.
  • Rust GraphQL APIs for NodeJS Developers: Introduction
    7 projects | | 8 Feb 2024
    In my usual NodeJS tech stack, which includes GraphQL, NestJS, SQL (predominantly PostgreSQL with MikroORM), I encountered these limitations. To overcome them, I've developed a new stack utilizing Rust, which still offers some ease of development:
  • On Avoiding Register Spills in Vectorized Code with Many Constants
    2 projects | | 5 Feb 2024
    Compilers also may even spill data to stack from memory, even when the original location is still available, as can be seen in this issue:

    I vaguely remember that spilling like this could allow high-end CPUs to use something similar to register renaming, i.e. stack locations like [rsp + 96] could be stay in a physical registers during function execution (high-end CPUs often have more physical registers, than logical ones), but could find good references whether such optimization exists in practice or not.

    Unfortunately, I think more often than note it causes performance regressions and in some cases it may even cause unnecessary stack spilling of sensitive data:

  • New Linux glibc flaw lets attackers get root on major distros
    7 projects | | 4 Feb 2024

    So the answer is: Not necessarily. I agree though that the memory safety features in Rust would help reduce the risk. On the other hand, one could also write safer C by abstracting away buffer management. The world is not black and white.

    7 projects | | 4 Feb 2024
    Mind you that there is a runtime overhead.

    If we look at access beyond on a slice's boundary:

    This bounds check is what enables Rust code to fail with a panic vs continuing (which is what triggers a lot of bugs).

    Post about the impact on performance:

What are some alternatives?

When comparing Nim and rust you can also consider the following projects:

zig - General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.

carbon-lang - Carbon Language's main repository: documents, design, implementation, and related tools. (NOTE: Carbon Language is experimental; see README)

go - The Go programming language

Odin - Odin Programming Language

crystal - The Crystal Programming Language

Elixir - Elixir is a dynamic, functional language for building scalable and maintainable applications

v - Simple, fast, safe, compiled language for developing maintainable software. Compiles itself in <1s with zero library dependencies. Supports automatic C => V translation.

haxe - Haxe - The Cross-Platform Toolkit

Rustup - The Rust toolchain installer

rust-analyzer - A Rust compiler front-end for IDEs [Moved to:]