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Base64 Tool

Encode and decode Base64, including files and images

URL-safe Base64(uses - and _ instead of + and /)

Text to Encode

Base64 encodes binary data into ASCII text using 64 characters (A-Z, a-z, 0-9, +, /).

Common uses: Embedding images in CSS/HTML, encoding email attachments, API authentication headers, storing binary data in JSON.

URL-safe: Replaces + with - and / with _ to avoid URL encoding issues.