Skip to main content
FileFolks

JSON Formatter

Paste or drop a JSON file to format, validate, and inspect it. See key counts, nesting depth, and file size at a glance. Everything runs in your browser — nothing is uploaded.

formatvalidateno-upload
Input
Output

Your data never leaves your browser. All processing happens locally on your device.

Frequently asked questions about JSON Formatter

Related tools

JSON to CSV

Convert a JSON array of objects to a downloadable CSV file

Base64 Encode / Decode

Encode text or files to Base64, or decode Base64 back to text

URL Encode / Decode

Encode and decode URL-safe strings and query parameters

JWT Decoder

Decode and inspect JSON Web Token headers and payloads