Beautify JSON Online

Transform compact, single-line JSON into readable, properly indented format.

Why Beautify JSON?

Minified JSON saves bandwidth but is impossible to read. When you're debugging an API response, reviewing a Terraform state file, or inspecting a webhook payload, you need the JSON beautified — properly indented with line breaks so the structure is immediately visible.

Our JSON beautifier parses your input and re-serializes it with configurable indentation (2 or 4 spaces). It handles deeply nested objects, large arrays, and mixed data types. Unlike server-based tools, everything runs in your browser — your data never leaves your machine.

This is especially useful for log analysis. Production logs often contain single-line JSON that's been stringified for structured logging. Paste a log line here to see the actual data structure, identify missing fields, or trace a request through your system.

Tips

  • Use 2-space indentation for most config files — it's the standard in JavaScript, TypeScript, and most web projects.
  • Need the opposite? Our formatter also minifies JSON — great for reducing payload size before sending API requests.
  • Pipe curl responses through jq . locally, or paste them here for a quick visual check.
  • Auto-processing formats as you type — no need to click a button.

Ready to get started?

Open JSON Beautifier

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