Online Bash Formatter

Formats Bash scripts to a consistent style, preserving shell semantics while adjusting indentation and wrapping for readability and maintainability.

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1,208+

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 Online Bash Formatter 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 Online Bash Formatter formats Bash and POSIX shell scripts to a consistent, readable style. It targets developers, DevOps engineers, and sysadmins who maintain automation and deployment scripts, enabling teams to enforce a shared formatting standard without changing behavior.
Conceptually, it tokenizes the script, applies formatting rules such as indentation, wrapping, and spacing, and preserves critical syntax elements like shebang lines and comments. It distinguishes required vs advanced features: required inputs include code, indentation preferences, and line-length; advanced options cover quote normalization and heredoc handling.
Output includes the formatted script and a style report describing indentation usage, maximum line length, and any warnings. It is designed to be idempotent; re-formatting a formatted script yields the same result.
Use cases include standardizing scripts across a repository, preparing code for review, and improving maintainability of automation tasks.

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How to Use

Provide inputs: paste the Bash script and configure indent_style (spaces or tabs), indent_size, and max_line_length.
Run formatter: process the inputs to produce formatted_code and a style_report.
Review outputs: inspect the formatted_code and the reported style details.
Validate behavior: ensure the script's execution is unchanged by comparing run results if possible.
Iterate: adjust options and re-run as needed.

Frequently Asked Questions

Find Quick Answers

Will formatting change script behavior?

No. The formatter applies purely stylistic changes and preserves semantics; shebangs, comments, and command structure remain intact.

Does it handle heredocs?

Yes; it recognizes heredoc blocks and refrains from reflowing their contents. Surrounding lines are reformatted while the heredoc boundaries remain intact.

Can I customize indentation?

Yes. You can choose spaces or tabs, set indentation width, and adjust the size. These settings influence all formatted blocks to meet your standards.

What happens on parsing errors?

If parsing detects unsupported constructs, the tool emits warnings and outputs the best-effort formatted code. It preserves critical semantics and does not execute or rewrite logic.

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