JSON to Base64
Encode a JSON string to Base64 format.
When to use this tool
Use this tool to Base64-encode JSON data for transmission in environments that require safe text-only payloads. Commonly used when constructing JWTs, encoding request bodies in URL parameters, or storing structured data in plain-text configs.
How to use
1. Paste your JSON string into the input. 2. Click "Encode" to convert to Base64. 3. Copy the resulting string for use in tokens, URLs, or storage.