When should I use URL-safe Base64?

When the result will appear in a URL, JWT, or filename. URL-safe replaces + and / with - and _.

Base64 Encode/Decode

Encode or decode Base64 strings instantly. UTF-8 safe, supports URL-safe variant. Free, runs locally in your browser.

About this Base64 Encode/Decode tool

Base64 maps any binary data into 64 printable ASCII characters. CheckHub encodes and decodes both standard and URL-safe variants and handles Unicode correctly.

How to use the Base64 Encode/Decode

Step 1. Paste text or Base64.
Step 2. Pick encode or decode.
Step 3. Copy the result.

Frequently asked questions

When should I use URL-safe Base64?: When the result will appear in a URL, JWT, or filename. URL-safe replaces + and / with - and _.

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