What is Base64 encoding?

Base64 is a binary-to-text encoding scheme that represents binary data as ASCII characters. It uses 64 characters (A-Z, a-z, 0-9, +, /) plus = for padding.

What is URL-safe Base64?

URL-safe Base64 replaces + with - and / with _ to avoid conflicts with URL special characters. The padding = may also be omitted.

Does Base64 encoding provide security?

No. Base64 is an encoding, not encryption. Anyone can decode it. Never use it to protect sensitive data.

Base64 Encode

Encoding Tools

Convert any text string to Base64 encoding. Supports both standard Base64 (RFC 4648) and URL-safe Base64 (replacing + with - and / with _). Useful for embedding data in URLs, APIs, and data URIs.

100% client-side processing

Input Text

URL-safe variant

How to Use Base64 Encode Online

Paste your data into the input field above
The result appears instantly in the output area
Click "Copy" to copy the result to your clipboard

Encode text to Base64 with URL-safe variant option. Runs 100% client-side — no data is sent to any server.

Frequently Asked Questions

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