JSON Formatter & Validator

Format, minify, and validate JSON payloads with syntax error detection.

Sample Presets:

Raw JSON Input(RFC 8259)

0 chars0 lines

1
​
Paste or drop JSON here to format & validate
Supports standard JSON, JSON5, trailing commas, single quotes, and NDJSON

0 chars0 lines

1
​
Formatted JSON will appear here
Format a JSON payload to see the result.

Awaiting JSON Payload (RFC 8259)

Paste or drop a JSON payload into the input editor

JSON Processing Pipeline

Format raw JSON payloads, decode included authorization tokens, and encode payloads safely.

Step 01Active Step

Format & Minify JSON

Clean syntax errors and structure raw JSON input with consistent indentation.

Step 02

Inspect JWT Tokens

Decode and inspect embedded authorization tokens inside JSON payloads.

Open JWT Debugger & Inspector

Step 03

Encode Payload to Base64

Convert formatted JSON payload into Base64 format for API transmission.

Open Base64 Encoder & Decoder

Developer Documentation & Guidance

Practical developer scenarios, best practices, and common mistakes to avoid.

When Should I Use This Tool?

•Prettifying minified API responses, log outputs, or database export files.
•Validating JSON syntax before sending request bodies or committing config files.
•Minifying formatted JSON payloads for compact network transmission.

Developer Best Practices

✓Always validate JSON syntax before saving to production configuration files.
✓Use 2-space indentation for web API contracts and clear human readability.
✓Strip trailing commas, as standard JSON specifications forbid them.

Common Developer Mistakes

!Assuming JavaScript object literals (unquoted keys, single quotes) are valid JSON.
!Including trailing commas in object or array definitions.
!Overlooking invisible control characters in pasted raw payloads.

Keyboard Shortcuts Help

Format JSONCmd / Ctrl + Enter

Minify JSONCmd / Ctrl + Shift + M

Sort Keys AlphabeticallyCmd / Ctrl + Shift + S

Copy ResultCmd / Ctrl + Shift + C

Toggle LayoutCmd / Ctrl + Shift + L

JSON Formatter & Validator

Format, minify, and validate JSON payloads with syntax error detection.

Sample Presets:

Raw JSON Input(RFC 8259)

0 chars0 lines

1
​
Paste or drop JSON here to format & validate
Supports standard JSON, JSON5, trailing commas, single quotes, and NDJSON

0 chars0 lines

1
​
Formatted JSON will appear here
Format a JSON payload to see the result.

Awaiting JSON Payload (RFC 8259)

Paste or drop a JSON payload into the input editor

JSON Processing Pipeline

Format raw JSON payloads, decode included authorization tokens, and encode payloads safely.

Step 01Active Step

Format & Minify JSON

Clean syntax errors and structure raw JSON input with consistent indentation.

Step 02

Inspect JWT Tokens

Decode and inspect embedded authorization tokens inside JSON payloads.

Open JWT Debugger & Inspector

Step 03

Encode Payload to Base64

Convert formatted JSON payload into Base64 format for API transmission.

Open Base64 Encoder & Decoder

Developer Documentation & Guidance

Practical developer scenarios, best practices, and common mistakes to avoid.

When Should I Use This Tool?

•Prettifying minified API responses, log outputs, or database export files.
•Validating JSON syntax before sending request bodies or committing config files.
•Minifying formatted JSON payloads for compact network transmission.

Developer Best Practices

✓Always validate JSON syntax before saving to production configuration files.
✓Use 2-space indentation for web API contracts and clear human readability.
✓Strip trailing commas, as standard JSON specifications forbid them.

Common Developer Mistakes

!Assuming JavaScript object literals (unquoted keys, single quotes) are valid JSON.
!Including trailing commas in object or array definitions.
!Overlooking invisible control characters in pasted raw payloads.

Keyboard Shortcuts Help

Format JSONCmd / Ctrl + Enter

Minify JSONCmd / Ctrl + Shift + M

Sort Keys AlphabeticallyCmd / Ctrl + Shift + S

Copy ResultCmd / Ctrl + Shift + C

Toggle LayoutCmd / Ctrl + Shift + L