Developer Tool

JSON Base64

Encode JSON to Base64 or decode Base64 back to JSON. Useful for API testing and debugging.

Using the JSON Base64 Encoder & Decoder

Convert JSON objects into compact Base64 strings for use in API headers, data URIs, or secure transmission. This tool ensures your JSON is correctly formatted before encoding it locally in your browser.

How it Works

Paste your JSON object into the input area.

Choose whether to minify the JSON before encoding.

Review the resulting Base64 string.

Copy the output to your clipboard.

URL-safe

Your privacy is our priority. All encoding happens locally in your browser.