Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 back to readable text.
Enter your details below.
How to use
- Paste or type your text in the box.
- Choose Encode to Base64 or Decode from Base64.
- Press the button and read the result.
About this tool
Base64 turns text into a plain ASCII string that can travel safely through systems that only accept simple characters, and this tool reverses the process too. Paste text, choose encode or decode, and get the result at once. Decoding checks the characters and padding first, so broken input produces a clear error instead of silent garbage. It handles ordinary text well; it is not a form of encryption, so anyone can decode the output.
Frequently asked questions
Is Base64 the same as encryption?
No. Base64 only changes how data is represented, so anyone can decode it. Never use it to hide passwords or secrets.
Why does decoding fail on some input?
Base64 only allows letters, digits, plus, slash and up to two equals signs as padding, and its length must be a multiple of four. Anything else is rejected with an error.