Utility Tool
Base64 Encoder/Decoder
Encode and decode Base64 strings. Supports text, files, and URL-safe encoding. Everything runs locally in your browser.
Standard Base64
Uses characters A-Z, a-z, 0-9, +, / and = for padding. Standard encoding for data transfer.
URL-Safe Base64
Replaces + with -, / with _, and removes padding. Safe for use in URLs and filenames.
Common Use Cases
- • Data URIs: Embed images directly in HTML/CSS
- • API Payloads: Encode binary data for JSON transmission
- • Email Attachments: MIME encoding for email content
- • JWT Tokens: Decode JWT payload and header sections
- • Credentials: Basic HTTP authentication encoding