What is Base64 encoding?

Base64 is a binary-to-text encoding that represents bytes using 64 printable characters. It makes binary data safe to store or transmit in text-only channels.

How do I encode text to Base64?

Open the Encode tab, paste your text, and copy the Base64 output. This tool encodes UTF-8 text in your browser.

How do I decode Base64?

Switch to Decode, paste a valid Base64 string, and read the restored UTF-8 text. Invalid padding or characters produce a clear error.

Is Base64 encryption?

No. Anyone can decode Base64. Encryption requires a secret or key. Never treat Base64 as a way to hide passwords or tokens.

When should Base64 be used?

Use it when a protocol or format needs text-safe bytes—HTTP headers, data URLs, some REST API fields—not when you need confidentiality.

What is Base64 Encoder/Decoder?

A free online tool that converts between plain text and Base64 for developers and programming students.

How does the Base64 Encoder/Decoder work?

It uses standard browser Base64 routines on UTF-8 bytes and shows the result immediately—no server round trip.

How do I use the Base64 Encoder/Decoder?

Pick Encode or Decode, paste input, optionally tap Example, then copy the output.

Is this Base64 Encoder/Decoder free to use?

Yes. It is free with no sign-up and no software install.

Can I use the Base64 Encoder/Decoder on mobile?

Yes. The page works in mobile browsers for quick encode and decode checks.

Free Base64 Encoder/Decoder Online for Developers

Free Base64 Encoder/Decoder Online for Developers | Binary Tech