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Java Formatter

Reindent Java source with K&R or Allman brace style. Pure client-side, no compile.

Free No signup Client-side Privacy friendly

How to use

  1. 1 Paste Java source code.
  2. 2 Pick brace style and indent size.
  3. 3 Toggle Javadoc indent normalization if your comments have inconsistent alignment.
  4. 4 Copy or download the result.

Why use this tool

  • Rule-based reformatter — no compile, no parser download.
  • Both K&R (Oracle / Google style) and Allman supported.
  • Pure client-side — code never leaves the browser.
  • For full AST-level format use Google Java Format or IntelliJ formatter locally.

Frequently asked questions

Does this match Google Java Format?

Close, not identical — we apply indent + brace rules only. Google Java Format also wraps long lines and reorders imports. For canonical output, run the CLI.

Will annotations stay on their own line?

Yes — we never move annotations relative to the line they sit on. Add or remove blank lines manually.

Looking for a C# formatter?

Yes — see our <a href="/csharp-formatter" class="underline">C# Formatter</a> which uses the same rule engine with Allman default.

Summary

Java Formatter is a free developer utility by Zerethon Tools. Reindent Java source with K&R or Allman brace style. Pure client-side, no compile. Runs entirely in the browser — no signup, no upload.

Category
Developer
Pricing
Free
Privacy
Browser-based
Signup
Not required

Privacy

Your data never leaves your browser unless explicitly stated. Java Formatter runs entirely client-side — no server upload, no logging, no tracking of your input.

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