rustfmt VS rust-analyzer

Compare rustfmt vs rust-analyzer and see what are their differences.


A Rust compiler front-end for IDEs [Moved to:] (by rust-analyzer)
InfluxDB - Power Real-Time Data Analytics at Scale
Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
SaaSHub - Software Alternatives and Reviews
SaaSHub helps you find the best software and product alternatives
rustfmt rust-analyzer
57 207
5,884 9,320
1.4% -
9.3 10.0
5 days ago over 2 years ago
Rust Rust
Apache License 2.0 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 rustfmt. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-12-28.
  • You can't do that because I hate you
    9 projects | | 28 Dec 2023
    The author provides very surface-level criticism of two Rust tools, but they don't look into why those choices were made.

    With about five minutes of my time, I found out:

    wrap_comments was introduced in 2019 [0]. There are bugs in the implementation (it breaks Markdown tables), so the option hasn't been marked as stable. Progress on the issue has been spotty.

    --no-merge-sources is not trivial to re-implement [1]. The author has already explained why the flag no longer works -- Cargo integrated the command, but not all of the flags. This commit [2] explains why this functionality was removed in the first place.

    Rust is open source, so the author of this blog post could improve the state of the software they care about by championing these issues. The --no-merge-sources error message even encourages you to open an issue, presumably so that the authors of Cargo can gauge the importance of certain flags/features.

    You could even do something much simpler, like adding a comment to the related issues mentioning that you ran into these rough edges and that it made your life a little worse, or with a workaround that you found.

    Alternatively, you can continue to write about how much free software sucks.




  • Let else will finally be formatted by rustfmt soon
    5 projects | /r/rust | 3 Jul 2023
    The new style still supports single line let-else, and there is a configuration parameter to make it be on one line also for longer lines.
  • Is rustfmt abandoned? Will it ever format `let ... else` syntax?
    11 projects | /r/rust | 3 Jun 2023
    It seems there is an issue about this dating all the way back from 2018 but yet it still hasn't been fixed.
  • Hey Rustaceans! Got a question? Ask here (22/2023)!
    10 projects | /r/rust | 29 May 2023
    However since 4179 recent versions should merge configuration files. Not sure what the details / specifics are but if just ignoring the file entirely is not good enough you might give it its own directory and rustfmt.toml file and see if that works.
  • Rustfmt refusing to work with certain functions.
    1 project | /r/rust | 26 Apr 2023
    Could this be be #3863 - Gives up on chains if any line is too long? It might not be, because I can't see a specific "line" that's too long to format, but there's more detail about the exact problem in the issue.
  • Rust Tips and Tricks #PartOne
    3 projects | | 8 Apr 2023
    Rustfmt is a tool that formats Rust code in compliance with style guidelines. Its name precisely reflects its purpose. To install rustfmt, you can run rustup component add rustfmt. Once installed, you can execute cargo fmt to format Rust code in your workspace. If you require further information, you can visit rustfmt’s GitHub repository.
  • What are some good practices when writing rust?
    2 projects | /r/rust | 28 Feb 2023
    code must be formatted with rustfmt.
  • HTML Limpo
    1 project | /r/brdev | 21 Feb 2023
  • Hey Rustaceans! Got a question? Ask here (5/2023)!
    19 projects | /r/rust | 30 Jan 2023
    Yes, some cases are not yet supported (
  • How do I stop RustFmt from turning this…
    2 projects | /r/rust | 17 Dec 2022
    Just FYI, the let-else suggestions will only work until rustfmt settles on a format for it. So you may be surprised when this happens and it suddenly changes.


Posts with mentions or reviews of rust-analyzer. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-01-17.
  • rust-analyzer changelog #177
    1 project | /r/rust | 17 Apr 2023
    #14561 map tokens from include! expansion to the included file
  • Make LSP-Rust-analyzer works
    1 project | /r/neovim | 2 Mar 2023
    return { tools = { -- autoSetHints = false, on_initialized = function() vim.api.nvim_create_autocmd({ "BufWritePost", "BufEnter", "CursorHold", "InsertLeave" }, { pattern = { "*.rs" }, callback = function() vim.lsp.codelens.refresh() end, }) end, auto = false, inlay_hints = { -- Only show inlay hints for the current line only_current_line = false, auto = false, -- Event which triggers a refersh of the inlay hints. -- You can make this "CursorMoved" or "CursorMoved,CursorMovedI" but -- not that this may cause higher CPU usage. -- This option is only respected when only_current_line and -- autoSetHints both are true. only_current_line_autocmd = "CursorHold", -- whether to show parameter hints with the inlay hints or not -- default: true show_parameter_hints = false, -- whether to show variable name before type hints with the inlay hints or not -- default: false show_variable_name = false, -- prefix for parameter hints -- default: "<-" -- parameter_hints_prefix = "<- ", parameter_hints_prefix = " ", -- prefix for all the other hints (type, chaining) -- default: "=>" -- other_hints_prefix = "=> ", other_hints_prefix = " ", -- whether to align to the lenght of the longest line in the file max_len_align = false, -- padding from the left if max_len_align is true max_len_align_padding = 1, -- whether to align to the extreme right or not right_align = false, -- padding from the right if right_align is true right_align_padding = 7, -- The color of the hints highlight = "Comment", }, hover_actions = { auto_focus = false, border = "rounded", width = 60, -- height = 30, }, }, server = { --[[ $ mkdir -p ~/.local/bin $ curl -L | gunzip -c - > ~/.local/bin/rust-analyzer $ chmod +x ~/.local/bin/rust-analyzer --]] -- cmd = { os.getenv "HOME" .. "/.local/bin/rust-analyzer" }, cmd = { os.getenv "HOME" .. "~/.cargo/bin/rust-analyzer" }, on_attach = require("user.lsp.handlers").on_attach, capabilities = require("user.lsp.handlers").capabilities, settings = { ["rust-analyzer"] = { lens = { enable = true, }, checkOnSave = { command = "clippy", }, }, }, }, }
  • rust-analyzer changelog #164
    3 projects | /r/rust | 17 Jan 2023
    I would like changes like to be listed in 'Breaking Changes' category, to приманка draw the users' attention.
  • Mun v0.4.0 released
    4 projects | /r/rust_gamedev | 13 Dec 2022
    For those of you who haven’t heard of Mun before, Mun is an embeddable programming language empowering creation through iteration. The idea to create Mun originated out of frustration with the Lua dynamic scripting language and a desire to have similar hot reloading functionality available in Rust. As such, it’s not a direct competitor with Rust, but instead is intended to be used with Rust (or C/C++) as a host/embedded language pairing. Actually, Mun is completely written in Rust, building on similar crates as rust-analyzer and rustc. Its key features include:
  • rust-analyzer changelog #159
    2 projects | /r/rust | 12 Dec 2022
    #13728 upgrade chalk to make solver fuel work again (works around most trait solving hangs).
  • rust-analyzer changelog #147
    1 project | /r/rust | 19 Sep 2022
    #13221 (first contribution) add option to move lenses above doc comments (rust-analyzer.lens.location):
  • Does Rust need proc-macros 2.0?
    2 projects | /r/rust | 27 Jul 2022
    Rust-analyzer has a good overview:
  • rust-analyzer changelog #134
    7 projects | /r/rust | 20 Jun 2022
    #12517 (first contribution) fix completion for methods in trait generated by macro.
  • LSP Rust Analyzer keeps telling me `Error NO_RESULT_CALLBACK_FOUND`
    3 projects | /r/neovim | 12 Jun 2022
    -- all the opts to send to nvim-lspconfig -- these override the defaults set by rust-tools.nvim -- see server = { -- on_attach is a callback called when the language server attachs to the buffer -- on_attach = on_attach, settings = { -- to enable rust-analyzer settings visit: -- ["rust-analyzer"] = { -- enable clippy on save checkOnSave = { command = "clippy" }, assist = { importGranularity = "module", importPrefix = "self", }, cargo = { loadOutDirsFromCheck = true }, procMacro = { enable = true }, } } },
  • rust-analyzer changelog #130
    2 projects | /r/rust | 23 May 2022
    #12349 publish universal VSIX to make Code happy.

What are some alternatives?

When comparing rustfmt and rust-analyzer you can also consider the following projects:

Clippy - A bunch of lints to catch common mistakes and improve your Rust code. Book:

vscode-rust - Rust extension for Visual Studio Code

rust-analyzer - A Rust compiler front-end for IDEs

Rust for Visual Studio Code

intellij-rust - Rust plugin for the IntelliJ Platform


eglot - A client for Language Server Protocol servers

sublime-rust - The official Sublime Text 4 package for the Rust Programming Language

rust - Empowering everyone to build reliable and efficient software.


coc.nvim - Nodejs extension host for vim & neovim, load extensions like VSCode and host language servers.

InfluxDB - Power Real-Time Data Analytics at Scale
Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
SaaSHub - Software Alternatives and Reviews
SaaSHub helps you find the best software and product alternatives

Did you konow that Rust is
the 5th most popular programming language
based on number of metions?