Tool
JSON Beautifier
JSON Beautifier
Instantly beautify, indent, and format raw JSON into a clean, readable structure with syntax highlighting. Ideal for analysts, QA teams, and operations staff, this tool makes it easy to inspect API responses, debug payloads, or review configuration files. Simply paste or upload your JSON and get a consistently formatted output that’s easy to scan and understand. It supports large files, works entirely in-browser, and requires no signup or tracking. Whether you’re working with REST APIs, server logs, or event data, this tool streamlines your workflow and helps you catch issues faster with clear, structured JSON output.
Turn raw JSON into a clean, readable layout so you can understand it at a glance.
Parser uses the native JSON engine. Comments, trailing commas, and unquoted keys are rejected by design.
How it works
This tool formats raw JSON into clean, readable text with proper indentation and syntax highlighting, making it much easier to debug and understand complex data structures.
Use it to validate and format JSON payloads quickly, then copy or download a clean version for sharing or debugging.
What you can do with it
- Improves readability and traceability for nested JSON objects.
- Makes it easier to catch missing commas, quotes, or brackets.
- Efficiently handles large or deeply nested JSON payloads.
Common tasks
- Clean up API responses before sharing with teammates.
- Spot missing commas or braces quickly.
- Prepare JSON for screenshots or documentation.
Quick steps
- Paste or upload your raw JSON into the editor.
- Click the 'Beautify' button to automatically format the data.
- Inspect the structured and highlighted output displayed below.
Related tools
More tools in the format category.
- XML Beautifier — Clean up and format raw XML with proper indentation and tag structure for improved readability and easier debugging. This tool is ideal for QA teams and engineers working with XML-based APIs, RSS feeds, or backend service responses. Simply paste your unformatted XML, and the tool will automatically reformat it into a well-structured, easy-to-read layout. It highlights nested tags, preserves attributes, and ensures consistent spacing, making complex XML much easier to navigate. Everything runs client-side to ensure data privacy. Whether you're troubleshooting video tags or reviewing integration payloads, this formatter saves time and reduces parsing errors.
- Base64 / URL Encoder — Encode and decode Base64, Base64URL, and URL-encoded strings with a clean, reliable workflow. Designed for QA, ops, and engineering teams who need to inspect payloads, troubleshoot tokens, or normalize URLs quickly. Paste input, pick a mode, and get an instant output you can copy or reuse—entirely in-browser.
Before you start
- Paste JSON directly or load an example.
- Use Pretty or Minify depending on the output you need.
What you get
- Formatted JSON with consistent indentation.
- Clear error message when the JSON is invalid.
Common pitfalls
- Trailing commas or missing quotes will cause errors.
- Very large files can take longer to format in the browser.
Tips for best results
- Paste raw input so the tool can apply formatting consistently.
- If output looks wrong, validate the input for missing commas or tags.
- Use the example buttons above to sanity-check formatting and behavior.
Accuracy & limitations
- Outputs are deterministic and based only on the input you provide.
- When official specs exist, the tool favors strict parsing over guesses.
- URL-based tools can vary by region, cache, or upstream availability.
- Always validate critical outputs in your production systems before launch.
Trust & quality
- Strict parsers reject invalid input rather than guessing.
- Outputs are deterministic and preserve data structure.
Who it is for
- QA and support teams validating outputs before launch.
- Analysts and operators who need fast clarity on raw data.
- Engineers and technical writers documenting system behavior.
When to use this tool
- You need a quick answer without scripting or a full IDE.
- You want a repeatable, shareable output for teammates.
- You are troubleshooting inconsistent or malformed input.
Quick checklist
- Input is complete and copied in full.
- Output matches expectations and no errors are shown.
- Share or export the result if you need to keep a record.
Frequently asked questions
Is it free to use?
Yes. Core tools are free and accessible without signup.
Does it upload my data?
This tool runs locally in your browser. Data you paste or files you upload stay on your device and are not uploaded.
What if I spot a bug?
Please reach out via the Contact page with a reproduction example.
Does it fix invalid JSON?
No. It only formats valid JSON and will surface parsing errors when input is invalid.
Does it change the data?
No. It only changes whitespace and formatting; the structure stays the same.
Is my data uploaded?
No. Formatting happens locally in your browser.
Helpful links
Standards & references
Official specs that inform how this tool interprets data.