🪴/ The Super Mega Formatters Post

A yet comprehensive attempt at listing all code formatters available.

Dec 24, 2024 – Caleb Jasik

There are a good number of code formatters under the sun. I've been wanting to build https://areweformattingyet.com for a while now, I figure it's worth starting here with a simple list of everything that's around. Let me know via bsky if I need to add something!

Relatedly, I want to try to set up fuzzing for all said formatters, since they're a pretty solid problem space for fuzzing, idempotent and well-scoped. See Checking for idempotency: a bodgey formatter fuzzer , and jasikpark/fuzz-prettier for more.

Language	Tools
TS / TSX / JS / JSX	Prettier BiomeJS OXC (WIP)
Rust	rustfmt / cargo fmt Prettier plugin rust
Go	go fmt
Go Template	prettier-plugin-go-template
Java	prettier-plugin-java
C / C++	clangfmt
Zig	zig fmt
Gleam	gleam format
Handlebars	Prettier
Markdown / MDX	Prettier
Markdoc	Prettier via markdown formatting
Bash	prettier-plugin-sh shfmt

McYoung wrote a great post about an approach to formatters from first principles that makes me want to try my hand: https://mcyoung.xyz/2025/03/11/formatters/#fnref:80-cols

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