Free Base64 Encoder & Decoder Online
Encode text or files to Base64 and decode Base64 strings back to plain text or binary files. Supports URL-safe Base64, UTF-8, and custom encoding options. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.
How It Works
Enter Text or Upload File
Paste text or upload a file to encode to Base64.
Select Encoding Mode
Choose standard Base64 or URL-safe Base64 (replaces +, / with -, _).
Encode or Decode
Click Encode or Decode depending on your input.
Copy Output
Copy the result with one click or download as a file.
Frequently Asked Questions
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