Base64 Encoder / Decoder

100% In-Browser

Convert text to Base64 and back with URL-safe options and utf-8 support.

Key Capabilities & Features

  • ✓ 100% Client-side processing with zero server telemetry
  • ✓ Instant copy and download options
  • ✓ Clean formatting and auto-validation
  • ✓ No account or subscription required

Frequently Asked Questions

What is URL-safe Base64?

URL-safe Base64 replaces "+" with "-" and "/" with "_", making the string safe for URL query strings without requiring percent encoding.