EN DE

Free, privacy-first

Code Snippet Formatting Tool

Clean indentation, blank lines, and pasted code before you share it.

Input values

Results

Results update as you use the interface above.

What this formatter is best at

Use this tool for cleanup, not semantic rewriting. It is designed for quick readability gains on pasted snippets when you want to remove broken indentation, collapse messy blank lines, or standardize tabs versus spaces before you share code with someone else.

  • Clean snippets copied from terminals, chat threads, CMS fields, or rich-text documents.
  • Standardize indentation width and style before posting code publicly or internally.
  • See line counts, longest line, and change ratio so you know how much cleanup happened.

How to judge the formatted output

The best output is not the one that changes the most. It is the one that makes structure obvious without hiding the underlying code intent.

  • Input and output line counts show whether blank-line cleanup or wrapping materially changed the snippet shape.
  • Changed lines and change ratio help you estimate how messy the original paste was.
  • Longest line is useful when the snippet is heading into documentation, email, or narrow chat layouts.
  • Indent style confirms whether the final output is tabs-based or spaces-based.
  • If the formatted result still looks structurally wrong, the original snippet may have semantic issues that this lightweight formatter does not fix.

Assumptions

  • This tool optimizes whitespace and readability, not syntax correctness.
  • Language presets guide cleanup rules but do not replace a full parser or project formatter.
  • You should still validate runnable code in the real project environment.

Clean the snippet for the target language first, then tune formatting rules only if the default output still does not match the way you need to present it.

  1. Paste the snippet and select the language preset or automatic detection.

  2. Choose indentation width, indentation style, and blank-line behavior for the output you want.

  3. Run the formatter and review the result for readability and structural mistakes.

  4. Copy or export the cleaned snippet once it matches the style you need to share.

Example cleanup scenarios

Use one documentation-focused example and one pasted-terminal example to see where a lightweight formatter helps most.

Messy JavaScript for a docs page

A short snippet copied from a chat or ticket needs consistent indentation before it can be dropped into markdown.

Sample inputs

Language preset
JavaScript
Indent width
2 spaces
Blank lines
Collapse to single

Result: Good for making small code examples readable without sending them through a full formatter stack.

Use this when readability matters more than enforcing a full project-wide formatting spec.

Tabbed Python snippet from a terminal paste

A snippet arrives with mixed whitespace and needs to be normalized before review.

Sample inputs

Language preset
Python
Indent style
Spaces
Max line length target
88

Result: Useful when you want a readable handoff version before deeper linting or IDE formatting.

Browse Developer Tools Explore the rest of the browser-based developer utility set.

FAQ

Does this tool understand language syntax like Prettier or a full IDE formatter?
No. It is intentionally lighter than a full parser-based formatter. It is best for whitespace cleanup, indentation normalization, and quick readability improvements on pasted snippets.
When should I use this instead of my project formatter?
It is handy for a quick cleanup before sharing code in docs, tickets, chat, or Markdown, especially when you do not want to open a full project just to make the snippet readable.
Should I still run Prettier, Black, or the project formatter afterward?
Yes, if the snippet is going back into production code. This tool is best for making shared examples readable, while the repo formatter should still own final code style.
Can it convert tabs to spaces or preserve tabs if I want them?
Yes. Choose the indent style you want and the formatter will normalize indentation to match that target style.
Why does the tool report changed lines and longest line?
Those metrics help you judge whether the snippet is now easier to read and whether it will fit cleanly into documentation or narrow layouts.
Will this catch broken code logic or syntax errors?
No. It improves presentation, not program correctness. If the snippet still looks suspicious after formatting, validate it with the relevant language toolchain.