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Base64 Encoder

Encode text or files to Base64, including URL-safe output.

Encoding & DecodingBrowser-only • PrivateFree

URL-safe

Text Input

Base64 Output

Output will appear here...

Privacy First: All processing happens locally in your browser. Your data never leaves your device and is never uploaded to any server.

About Base64 Encoder

The Base64 Encoder converts text or files into Base64, the encoding used to embed binary data in JSON, data URIs, email, and HTTP headers. You can produce standard or URL-safe Base64, which swaps the characters that have special meaning in URLs. Encoding runs entirely in your browser, so even sensitive data stays on your device. To reverse it, use the Base64 Decoder, and remember Base64 is encoding, not encryption.

How to Use

1Open Base64 Encoder and paste or type your data into the input area.
2Adjust any available options to match the result you want.
3Your output is generated instantly — no button-clicking required for most tools.
4Use the Copy or Download button to save your result.

Common Use Cases

Encoding data for URLs, APIs, and data URIs
Debugging tokens, headers, and encoded payloads
Converting between text, hex, binary, and Base64
Safely embedding special characters in code and markup

Frequently Asked Questions

What is URL-safe Base64?

Standard Base64 uses + and / characters, which are reserved in URLs. URL-safe mode replaces them with - and _ and drops the = padding, so the result is safe to place directly in a URL or filename.

Is Base64 the same as encryption?

No. Base64 is a reversible encoding that anyone can decode. It hides nothing, so never use it to protect passwords or secrets — use proper hashing or encryption for that.

Is Base64 Encoder free to use?

Yes. Base64 Encoder is completely free with no sign-up, no subscription, and no usage limits. Every tool on CodeUtilityKit is free forever.

Is my data safe when I use Base64 Encoder?

Absolutely. Base64 Encoder runs entirely in your browser. Your input is processed locally with JavaScript and is never sent to, stored on, or logged by any server — so it is safe even for private or sensitive data.