Eclipse Formatter Online

A fast, online Eclipse Java formatter enabling consistent Java code style across teams.

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1,416+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how Eclipse Formatter Online processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}

Computed Result

{
  "id": 1,
  "status": "active",
  "roles": [
    "admin"
  ]
}

Execution Mode Client-Side In-Browser JS

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About This Tool

The Eclipse Formatter Online formats Java source to conform with Eclipse's Java style. It targets developers, reviewers, and teams that require consistent formatting without configuring an IDE locally. The tool accepts pasted code or file inputs and returns a formatted version that aligns with a chosen Eclipse profile. It is especially useful when preparing patches, validating code before commits, or enforcing a shared style across contributors.
Conceptually, formatting is performed by applying a defined set of rules for indentation, line wrapping, braces placement, and import ordering while preserving comments and Javadocs. The engine operates deterministically: given the same input and profile, the output is the same on every run. This facilitates reproducible diffs and code reviews, even across diverse development environments. The tool supports default Eclipse Java style out of the box and can apply customized profiles for teams with unique conventions. Use cases include codebase cleanups before pull requests, rapid formatting during pair programming, and CI-ready output for automated checks.
Unique value derives from immediate, install-free formatting aligned with Eclipse expectations, combined with optional batch formatting and diff-ready outputs for efficient collaboration.

Save your calculation history with a free account

How to Use

Provide inputs by pasting Java source or uploading files.
Choose the formatter profile or use the default Eclipse Java style.
Run the formatter to produce formatted code.
Copy or download the formatted output for review.
Apply the formatted result in your project or CI workflow.

Frequently Asked Questions

Find Quick Answers

What inputs are required for formatting?

You must provide Java source code as text or as uploaded files. An optional formatter profile or line-length setting can customize the result; if omitted, the default Eclipse Java style is applied. Output includes the formatted code and a summary.

Does the formatter preserve comments and Javadoc?

Yes. The formatter preserves comments and Javadoc blocks while reflowing and aligning code according to the selected Eclipse style rules, ensuring documentation remains in place.

Can I format multiple files in a single run?

Yes. Batch formatting is supported via multiple inputs. The tool returns per-file formatted output and an overall diff or summary to assist code reviews and integration.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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