wtf is ocamlformat?

ocamlformat is a tool that automatically tidies up OCaml source code so developers don't have to argue about how it should look. You run it on a file, and it reformats the code to follow a consistent style, spacing, indentation, line breaks, and so on. This saves teams from debating formatting choices in code reviews and keeps codebases visually consistent. The tool ships with opinionated defaults, meaning it makes formatting decisions for you out of the box. But if you disagree with those choices, you can create a small configuration file in your project to tweak things. There are also three preset "profiles" to choose from: the standard default, one matching the tool's own internal style, and one following conventions from Jane Street, a major OCaml company. Beyond regular code, it can also clean up comments and documentation strings, including code examples embedded in comments. The primary audience is anyone writing OCaml, from individual hobbyists to large engineering teams. For a solo developer, it saves time you'd otherwise spend manually aligning code. For a team, it eliminates a whole category of code review arguments, nobody needs to comment on indentation or spacing because the formatter handles it. It's also designed to integrate into standard OCaml workflows, so if your project uses the Dune build system, formatting your entire project is a single command. One notable design choice is that the tool doesn't just format code but also offers a server mode (called RPC) that other tools can talk to. This means code editors and IDEs can format files on the fly without launching the tool separately each time. The project is officially part of the OCaml Platform, which is the recommended toolset for the language, and it has backing from organizations including Jane Street and Tarides.