Base64 Encode & Decode Explained

Base64 turns binary data into ASCII text so it can travel in JSON, HTML, or email. Search demand is high because developers constantly embed images, tokens, and file bytes.

Typical uses

• Data URLs for small images (data:image/png;base64,...)
• HTTP Basic Auth headers
• JWT header and payload segments

Base64 is not encryption

Anyone can decode Base64. Do not hide passwords or API keys in Base64 and call it secure.