Encode text, images, or files to Base64 format and decode back to original. Perfect for API authentication, embedding images in HTML/CSS, and encoding JWT tokens.

Base64 encoding is everywhere in web development. From API authentication headers to embedding images in HTML, Base64 is essential. Our free Base64 encoder and decoder handles all your conversion needs instantly.

Common Uses for Base64 Encoding

• HTTP Basic Authentication: Encode username:password
• JWT Tokens: Decode the payload of JSON Web Tokens
• Data URIs: Embed small images directly in CSS or HTML
• Email attachments: MIME encoding for emails
• API requests: Encode binary data for JSON APIs

How to Use Base64 Encoder/Decoder

1. Go to Toolrivo's Base64 Tool at toolrivo.com/tool/text-to-base64 or toolrivo.com/tool/base64-to-text
2. Paste your text or upload a file
3. Click "Encode" or "Decode"
4. Copy the result

Pro Tip: Decode JWT Tokens

JWT tokens consist of three Base64-encoded parts separated by dots. Paste the middle part into our Base64 decoder to instantly read the token's claims (payload).

👉 Try it now:  toolrivo.com/tool/text-to-base64  |  toolrivo.com/tool/base64-to-text