Is Base64 the same as encryption?

No. Base64 is encoding, not encryption — it's reversible by anyone. Never use it to protect sensitive data; use proper encryption instead.

What is URL-safe Base64?

Standard Base64 uses + and / characters that have special meaning in URLs. URL-safe Base64 replaces them with - and _, making the output safe for use in query strings and path segments without percent-encoding.

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Developer Tools

Base64 Encoder / Decoder

Encode text and data to Base64, or decode Base64 strings back to plain text instantly.

Last updated July 1, 2026

How to use Base64 Encoder / Decoder

1Choose 'Encode' or 'Decode' mode with the toggle.
2Paste your plain text or Base64 string into the input.
3The result appears instantly in the output panel.
4Copy the output with one click.

Why use this tool

Bidirectional — encode and decode in the same tool.
Handles Unicode characters correctly, not just ASCII.
Runs entirely client-side, so sensitive data never leaves your machine.

Use cases

Embedding images in CSS or HTML

Encode small images or SVGs to Base64 to inline them directly in stylesheets or HTML, eliminating an extra HTTP request.

Debugging API payloads

Decode a Base64-encoded JWT or API token to inspect its claims and header without leaving the browser.