What indentation size should I use for JSON?

It depends on your project. JavaScript and TypeScript projects often use 2 spaces. Python projects often use 4 spaces. Check your .editorconfig or eslint config for your team's standard.

Does indentation affect JSON parsing?

No. JSON parsers ignore whitespace. 2-space, 4-space, and tab-indented JSON are all equivalent and parse identically.

Can I convert a tab-indented JSON to 2-space indentation?

Yes. Paste the tab-indented JSON into FixTools, select 2 spaces, and click Format. The output will use 2-space indentation.

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Format JSON with Indentation

Different projects use different indentation standards — 2 spaces, 4 spaces, or tabs. FixTools lets you format JSON with exactly the indentation you need, making it easy to match your codebase or style guide.

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Choose 2-space, 4-space, or tab indent

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Matches your project style guide

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Instant browser-based formatting

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How to use this tool

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Paste your JSON, select your preferred indentation size, then click Format.

How It Works

Step-by-step guide to format json with indentation:

1
Paste your JSON
Paste the JSON you want to indent into the input area.
2
Choose indentation size
Select 2 spaces, 4 spaces, or tabs from the options panel.
3
Format and copy
Click Format. Copy the indented output and paste it into your project.