JSON Formatter

Format & validate JSON instantly: pretty print, sort keys, minify. Upload a .json, copy-ready output, privacy-first.
🔒 Browser-only ⚡ Instant format 📋 Copy-ready 🧠 Debug-friendly
Step 0 Load a sample (optional)
Step 1 Paste JSON
Step 2 Format / validate
Step 3 Copy / download

Examples

Click “Load example” to fill a realistic JSON payload (API response, event, config…).
Tip: validation and formatting run locally in your browser (no uploads).
Minify outputs compact JSON (useful for payloads).
Sort keys (A→Z)
Auto-format on input
Wrap long lines (output)
Shortcut: Ctrl / ⌘ + Enter
Privacy: Your JSON stays on your device. This tool runs in your browser with no uploads, no account, and no server processing. Read details in Privacy.
Waiting for JSON…
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Related guides

🧠 Fix invalid JSON (debug guide)

What is a JSON Formatter?

A JSON formatter (pretty printer) converts raw JSON into a clean, indented structure that’s easier to read and debug. This tool also validates JSON and shows helpful error context (line/column + snippet) when something is wrong.

Pretty print vs minify (when to use each)

Use pretty print for debugging API responses, logs, and config files. Use minify (indent 0) when you need compact payloads. Enable Sort keys for stable diffs and comparisons across environments.

Practical use cases

Debug API responses

Make nested payloads readable fast, validate syntax, and pinpoint issues with line/column errors.

Clean output for docs

Pretty JSON is easier to copy into documentation, tickets, or code reviews.

Compare objects

Sort keys to reduce noise and make diffs stable across runs.

Minify payloads

Generate compact JSON for shipping configs or embedding into query parameters.

FAQ

Do Clickoz tools upload my JSON or data?
No. This tool runs locally in your browser. Your inputs stay on your device.
Why is my JSON invalid?
Most common causes are trailing commas, missing quotes, or unescaped characters. The error box shows line/column and a snippet.
Can I minify JSON?
Yes. Set indent to 0 to output compact JSON.
Can I format a .json file?
Yes. Upload a file locally, then copy or download the formatted output.

SEO search intents (how people find this tool)

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Question-style searches convert well and rank easier than generic keywords.

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Last updated: 2026-02-22 · Browse all tools