Best Open Source Windows Code Formatters 2026

Code Formatters for Windows

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1

Dev-C++

A free, portable, fast and simple C/C++ IDE

A new and improved fork of Bloodshed Dev-C++

141 Reviews

Downloads: 47,639 This Week

Last Update: 2016-11-29
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2

Dev-C++ for Windows 10/8/7

A fast, portable, simple, and free C/C++ IDE

Coding Boot Camp Learning to program? Check out the free boot camp from Embarcadero which runs from Monday, August 22nd to Friday, August 26th. https://learndelphi.org/boot-camp-2022/ Embarcadero Dev-C++ is a new and improved fork (sponsored by Embarcadero) of Bloodshed Dev-C++ and Orwell Dev-C++. It is a full-featured Integrated Development Environment (IDE) and code editor for the C/C++ programming language. It uses Mingw port of GCC (GNU Compiler Collection) as its compiler. Embarcadero Dev-C++ can also be used in combination with Cygwin or any other GCC based compiler. Embarcadero Dev-C++ is built using the latest version of Embarcadero Delphi. Embarcadero Dev-C++ has a low memory footprint because it is a native Windows application and does not use Electron. Optimized for parallel compilation on modern multi-core machines. GitHub Project: https://github.com/Embarcadero/Dev-Cpp/ Sponsored by Embarcadero: https://www.embarcadero.com/free-tools/dev-cpp

24 Reviews

Downloads: 3,144 This Week

Last Update: 2021-05-19
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3

SQLiteStudio

A free, open source, multi-platform SQLite database manager

A free, open-source, multi-platform SQLite database manager written in C++, with use of Qt framework. It's free of charge for everybody, for any purpose (including commercial). It's safe, as anyone can review the source code. The SQL Editor window assists users with SQL syntax hints & highlighting, provides pretty-print code formatter, and marks syntax errors. You can Ctrl+click on the table mentioned in the SQL query to open that table (or index, or trigger, or view). Currently supported encrypted, password-protected SQLite variations are SQLCipher, WxSQLite3, and System.Data.SQLite. You can execute SQL statements that refer to multiple databases within a single query, thanks to a transparent database attaching mechanism built into the SQL Editor of SQLiteStudio. You can implement your own SQL functions (scalar & aggregate) using JavaScript, Python, or Tcl. There is a repository of ready-to-use scripts on the wiki page.

2 Reviews

Downloads: 593 This Week

Last Update: 2026-06-23
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4

Artistic Style

A Free, Fast, and Small Automatic Formatter for C, C++, C++/CLI, Objective-C, C#, and Java Source Code. Website: http://astyle.sourceforge.net/ Git Repository: https://gitlab.com/saalen/astyle/

46 Reviews

Downloads: 1,535 This Week

Last Update: 2 days ago
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Falcon C++

C++ IDE easy and complete.

Falcon C++ is a IDE that was developed to turn development of C++ applications easily.

8 Reviews

Downloads: 243 This Week

Last Update: 2017-08-31
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6

Deno

A secure runtime for JavaScript and TypeScript

Deno is a secure by default, open source runtime for JavaScript and TypeScript, providing a productive and secure scripting environment for the modern programmer. It is distributed as a single executable with no dependencies, and takes on the role of both runtime and package manager. It uses a standard browser-compatible protocol for loading modules, which are URLs. Built on top of V8, Rust and TypeScript, Deno has support for TypeScript right out of the box. It has a set of built-in utilities as well as reviewed (audited) standard modules.

Downloads: 40 This Week

Last Update: 14 hours ago
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7

UniversalIndentGUI

A cross platform GUI for several code formatter, beautifier and indenter like AStyle, GNU Indent, GreatCode, HTML Tidy, Uncrustify and many more. Main feature is a live preview to directly see how the selected formatting option affects the source code.

8 Reviews

Downloads: 61 This Week

Last Update: 2012-03-30
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8

AutoCorrect

A linter and formatter to help you to improve copywriting, etc.

AutoCorrect is a linter and formatter to help you to improve copywriting, correct spaces, words, and punctuations between CJK (Chinese, Japanese, Korean). Like Eslint, Rubocop and Gofmt, AutoCorrect allows us to check source code, and output as colorized diff with corrected suggestions. You can integrate to CI (GitLab CI, GitHub Action, Travis CI....) for use to check the contents in source code. Recognize the file name, and find out the strings and the comment part. Add spacing between CJK (Chinese, Japanese, Korean) and English words. Correct punctuations into full-width near the CJK. Correct punctuations into half-width in English content. (Experimental) Spellcheck and correct words with your dictionary. Lint checking and output diff or JSON result, so you can integrate everywhere (GitLab CI, GitHub Action, VS Code, Vim, Emacs...)

Downloads: 8 This Week

Last Update: 2026-01-03
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9

Prettier Formatter for Visual Studio

Visual Studio Code extension for Prettier

Prettier is an opinionated code formatter. It enforces a consistent style by parsing your code and re-printing it with its own rules that take the maximum line length into account, wrapping code when necessary. To ensure that this extension is used over other extensions you may have installed, be sure to set it as the default formatter in your VS Code settings. This setting can be set for all languages or by a specific language. If you want to disable Prettier on a particular language you can either create a .prettierignore file or you can use VS Code's editor.defaultFormatter settings. Additionally, you can disable format on save for specific languages if you don't want them to be automatically formatted. This extension will use prettier from your project's local dependencies (recommended). When the prettier.resolveGlobalModules is set to true the extension can also attempt to resolve global modules.

Downloads: 7 This Week

Last Update: 2026-03-16
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fmt

Formatting library as an alternative to C stdio and C++ iostreams

{fmt} is an open-source formatting library providing a fast and safe alternative to C stdio and C++ iostreams. The format API is similar in spirit to the C printf family of function but is safer, simpler and several times faster than common standard library implementations. The format string syntax is similar to the one used by str.format in Python. The library is fully type safe, automatic memory management prevents buffer overflow, errors in format strings are reported using exceptions or at compile time. The library produces compact per-call compiled code. The library is highly portable and relies only on a small set of C++11 features, like variadic templates, type traits, rvalue references, decltype, trailing return, types, deleted functions, alias templates. These are available in GCC 4.8, Clang 3.0, MSVC 19.0 (2015) and more recent compiler version. For older compilers use {fmt} version 4.x which is maintained and only requires C++98.

Downloads: 5 This Week

Last Update: 2026-06-16
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11

Livebook

Interactive and collaborative code notebooks for Elixir

Livebook is a web application for writing interactive and collaborative code notebooks. Write notebooks in Livebook then securely deploy and share them with your team and company with Livebook Hub/Enterprise. Code notebooks with Markdown support and Code cells where Elixir code is evaluated on demand. Rich code editor through Monaco: with support for autocompletion, inline documentation, code formatting, etc. Interactive results via Kino: display Vega-Lite charts, tables, maps, and more. Automation: use Smart cells to perform high-level tasks and write notebooks faster than ever. Query databases, plot charts, build maps, and more directly from Livebook's UI. Reproducible: Livebook ensures your code runs in a predictable order, all the way down to package management. It also tracks your notebook state, annotating which parts are stale. Collaboration: multiple users can work on the same notebook at once, no additional setup is required.

Downloads: 4 This Week

Last Update: 2026-07-01
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12

StyLua

An opinionated Lua code formatter

An opinionated code formatter for Lua 5.1, 5.2, 5.3, 5.4 and Luau, built using full-moon. StyLua is inspired by the likes of prettier, it parses your Lua codebase, and prints it back out from scratch, enforcing a consistent code style. By default, these are built with all syntax variants enabled (Lua 5.2, 5.3, 5.4 and Luau), to cover all possible codebases. If you would like to format a specific Lua version only, see installing from crates.io. You can use the stylua-action GitHub Action in your CI to install and run StyLua. This action uses the prebuilt GitHub release binaries, instead of running cargo install, for faster CI times. This command will format the foo.lua and bar.lua file, and search down the src directory to format any files within it. StyLua can also read from stdin, by using - as the file name.

Downloads: 4 This Week

Last Update: 2026-05-16
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13

dprint

Pluggable and configurable code formatting platform written in Rust

A pluggable and configurable code formatting platform written in Rust. This project is under active early development. I recommend you check its output to ensure it's doing its job correctly and only run this on code that has been checked into source control. Monorepo for dprint—a pluggable and configurable code formatting platform. The plugins property specifies which plugins to use for formatting. These may be URLs or file paths to a WebAssembly file of the plugin. By default, plugins will pull in files based on their extension. Sometimes a file may have a different extension or no extension at all, but you still want to format it with a certain plugin. The plugin "associations" config allows you to do that by associating a certain file pattern to one or multiple plugins.

Downloads: 4 This Week

Last Update: 2026-06-28
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14

Best-of Python Developer Tools

A ranked list of awesome python developer tools and libraries

A ranked list of awesome Python developer tools and libraries. Updated weekly. This curated list contains 270 awesome open-source projects with a total of 810K stars grouped into 16 categories. All projects are ranked by a project-quality score, which is calculated based on various metrics automatically collected from GitHub and different package managers. If you like to add or update projects, feel free to open an issue, submit a pull request, or directly edit the projects.yaml. Contributions are very welcome!

Downloads: 3 This Week

Last Update: 7 days ago
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15

Black

The uncompromising Python code formatter

Black is the uncompromising Python code formatter that takes total control over your Python code formatting in the best way. Black delivers speed and certainty, while freeing you from constant pycodestyle nagging. Your code review becomes a lot faster and easier, so you can spend more time and mental energy on more important things. Blackened code makes the smallest diffs possible and looks the same no matter the project. Its formatting eventually becomes transparent, so you can simply forget about it and focus on your task at hand. Black has been successfully used in many projects, and has gained stellar user reviews as an exceptional, uncompromising PEP 8 compliant opinionated formatter.

Downloads: 3 This Week

Last Update: 2026-05-18
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16

Bootstrap 5 UI KIT

Bootstrap 5 & Material Design 2.0 UI KIT

Trusted by 2 000 000+ developers & designers. Used by companies & institutions. Super simple, 1 minute installation. Detailed docs & practical examples. Lots of tutorials. Plain JavaScript (but works also with jQuery). Huge and active community. MIT license, free for personal & commercial use. Simplicity and ease of use are key features of MDB 5 UI Kit. You need only one minute to install and run it. A slideshow component for cycling through elements, images or slides of text, like a carousel. Use MDB custom button styles for actions in forms, dialogs, and more with support for multiple sizes, states, and more. Indicate the loading state of a component or page with MDB spinners, built entirely with HTML, CSS, and no JavaScript. A card is a flexible and extensible content container. It includes options for headers and footers, a wide variety of content, contextual background colors, and powerful display options.

Downloads: 3 This Week

Last Update: 2025-12-08
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17

Prettier

Opinionated Code Formatter

Prettier is an open source, opinionated code formatter that basically takes all the original styling of your code and enforces a consistent code style through parsing and reprinting following its own rules. It takes the maximum line length into account, wrapping code if needed. Prettier makes writing code in one consistent style automatic, painless and so much easier. No need to spend so much time, effort and mental energy discussing styles or formatting your code. Simply press save and your code is formatted. Prettier supports several languages including JavaScript, TypeScript, JSON, CSS, HTML and more. It also integrates with most editors (Atom, Visual Studio, Vim, Espresso and more).

Downloads: 3 This Week

Last Update: 2026-06-30
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18

Jedi Code Format

The Jedi Code Formatter is an open-source code formatter for the Borland Delphi Object-Pascal programming language. The formatter can standardise all aspects of Delphi Object Pascal and Delphi.NET source code formatting, including indentation, spacin

6 Reviews

Downloads: 14 This Week

Last Update: 2013-11-08
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19

Buildtools for bazel

A bazel BUILD file formatter and editor

This repository contains developer tools for working with Google's bazel buildtool. buildifier For formatting BUILD, BUILD.bazel and BUCK files in a standard way. buildozer For doing command-line operations on these files. unused_deps For finding unneeded dependencies in java_library rules. See instructions in each tool's directory. Buildifier supports the following file types: BUILD, WORKSPACE, .bzl, and default, the latter is reserved for Starlark files buildifier doesn't know about (e.g. configuration files for third-party projects that use Starlark). The formatting rules for WORKSPACE files are the same as for BUILD files (both are declarative and have stricter formatting rules), and default files are formatted similarly to .bzl files, allowing more flexibility. Different linter warnings may be limited to any subset of these file types.

Downloads: 2 This Week

Last Update: 2026-01-30
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20

Laravel Pint

Laravel Pint is an opinionated PHP code style fixer for minimalists.

Laravel Pint is an opinionated PHP code-style fixer for minimalists. Pint is built on top of PHP-CS-Fixer and makes it simple to ensure that your code style stays clean and consistent. Pint is automatically installed with all new Laravel applications so you may start using it immediately. By default, Pint does not require any configuration and will fix code style issues in your code by following the opinionated coding style of Laravel. Pint is included in recent releases of the Laravel framework, so installation is typically unnecessary. However, for older applications, you may install Laravel Pint via Composer. You can instruct Pint to fix code style issues by invoking the pint binary that is available in your project's vendor/bin directory. Laravel is a web application framework with expressive, elegant syntax. We’ve already laid the foundation, freeing you to create without sweating the small things.

Downloads: 2 This Week

Last Update: 2026-06-16
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21

Vim Codefmt

Vim plugin for syntax-aware code formatting

vim-codefmt is a syntax-aware code formatting plugin for Vim that provides a unified interface to many best-in-class formatters across languages. It exposes simple commands to format either a selected range or an entire buffer, and integrates cleanly into everyday editing workflows. The plugin ships with a registry of built-in formatters and a pluggable architecture, allowing other plugins to register additional formatters without friction. Configuration is handled through maktaba and Glaive flags, so you can choose per-filetype tools, pass custom options, or point to specific formatter executables. Autoformat can be enabled via standard Vim autocommands, making it easy to format on filetype or on write while still allowing opt-out on a per-buffer basis. With broad language coverage—from C, C++, Java, Python, and Go to Kotlin, Rust, Swift, Bazel, Markdown, and more—vim-codefmt helps teams maintain consistent style across heterogeneous codebases.

Downloads: 2 This Week

Last Update: 2 days ago
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22

CoolFormat

CoolFormat Source Code Formatter

CoolFormat source code formatter is a code formatter for C\C++\C#\CSS \HTML\Java\JavaScript\JSON\Objective-C\PHP\SQL\XML, and support for code highlighting displayed on a Web page to facilitate the writing of a blog post like reading.

3 Reviews

Downloads: 21 This Week

Last Update: 2018-05-28
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23

Firebase Apple Open Source Development

Firebase SDK for Apple App Development

This repository contains all Apple platform Firebase SDK source except FirebaseAnalytics. Firebase is an app development platform with tools to help you build, grow and monetize your app. More information about Firebase can be found on the official Firebase website. See the subsections below for details about the different installation methods. Where available, it's recommended to install any libraries with a Swift suffix to get the best experience when writing your app in Swift. Instructions for Swift Package Manager support can be found at SwiftPackageManager Markdown file. All of the official releases are tagged in this repo and available via CocoaPods. To access a local source snapshot or unreleased branch, use Podfile directives. CocoaPods is still the canonical way to develop, but much of the repo now supports development with Swift Package Manager.

1 Review

Downloads: 1 This Week

Last Update: 17 hours ago
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24

GDScript Toolkit

Independent set of GDScript tools - parser, linter and formatter

Independent set of GDScript tools, parser, linter and formatter. This project provides a set of tools for daily work with GDScript. At the moment it provides a parser that produces a parse tree for debugging and educational purposes. A linter that performs a static analysis according to some predefined configuration. A formatter that formats the code according to some predefined rules. A code metrics calculator which calculates the cyclomatic complexity of functions and classes. To install this project you need python3 and pip. Regardless of the target version, installation is done by pip3 command and for stable releases, it downloads the package from PyPI.

Downloads: 1 This Week

Last Update: 2025-10-09
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25

RuboCop

A Ruby static code analyzer and formatter, based on the community Ruby

RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. RuboCop packs a lot of features on top of what you’d normally expect from a linter. Works with every major Ruby implementation. Autocorrection of many of the code offenses it detects. Robust code formatting capabilities. Multiple result for matters for both interactive use and for feeding data into other tools. Ability to have different configurations for different parts of your codebase. Ability to disable certain cops only for specific files or parts of files. Extremely flexible configuration that allows you to adapt RuboCop to pretty much every style and preference. It’s easy to extend RuboCop with custom cops and formatters. Many online services use RuboCop internally (e.g. HoundCI, Sider and CodeClimate).

Downloads: 1 This Week

Last Update: 1 day ago
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