GLSL Formatter

A dedicated GLSL formatter that produces clean, consistent shader code for shader authors and WebGL developers, improving readability and collaboration across teams.

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2,376+

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 GLSL 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 GLSL Formatter Online reformats shader source into a consistent, readable style without changing shader semantics. It targets shader authors and WebGL/OpenGL developers who maintain GLSL repos, and is useful during development, review, or before sharing snippets to ensure stable diffs.
Conceptually, the tool parses the input into a structured representation and re-emits code using configurable rules. It preserves comments and preprocessor directives, supports common GLSL variants, and keeps macros intact. Core features include deterministic indentation, brace placement, line wrapping, and optional keyword casing.
Benefits include improved code reviews, easier diffs, and smoother collaboration across teams. It is designed for editor and pipeline integration, offering a stable formatting pass without changing shader logic. It is not a compiler or linter; it focuses on presentation and portability.

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How to Use

Provide inputs: paste GLSL code and select target version and formatting options (indent_size, max_line_length).
Run formatting: the tool emits a formatted_code output.
Review outputs: inspect formatted_code and any diagnostics.
Copy formatted code back into your editor or pipeline.
Save or export the result if supported.

Frequently Asked Questions

Find Quick Answers

What remains unchanged after formatting?

Formatting preserves shader semantics and structure. All tokens, literals, and control flow remain in the same order; whitespace, indentation, line breaks, and comment formatting are adjusted for readability.

Which GLSL variants are supported?

The formatter supports OpenGL GLSL and OpenGL ES variants (e.g., 120/330 and ES profiles). It applies version-aware rules when available and preserves preprocessor directives across variants.

Can I customize style options?

Yes. You can configure indentation, maximum line length, brace style, and keyword casing. If a requested option is unsupported, defaults are used and a diagnostic is provided.

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