Free code tools tool

Base64 Encoder Decoder (Encode and Decode)

Encode plain text to Base64 or decode Base64 strings back into readable text.

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How to use Examples Uses FAQ Related tools

How to convert with base64 encoder decoder

Base64 Encoder Decoder is a format converter. For decoding, the input must match the expected pattern, such as spaced binary bytes, valid Base64, URL-encoded text, ASCII numbers, or hex pairs.

  1. Type plain text to encode it, or paste a valid encoded value to decode it when supported.
  2. Keep separators such as spaces between bytes, numbers, or hex pairs.
  3. Copy the converted output and verify it before using it in a puzzle, lesson, or developer workflow.

Start with "hello" so you can see the exact conversion format before pasting your own code-like text.

Base64 Encoder Decoder examples

Try hello, TechsGreat, SGVsbG8= first so you can see how this code tools tool behaves. Use the related tools beside the page when you need a different format, effect, or copy-paste style.

Encoding and decoding details

Base64 Encoder Decoder is a utility converter for code-like text. Use it for conversion, decoding, puzzles, learning, quick checks, and developer cleanup tasks.

  • Use correctly formatted input for decoding.
  • Keep spaces between binary, ASCII, or hex values where needed.
  • Do not treat simple ciphers or encoders as secure encryption.

Converter notes

Code tools are deterministic: the same input should produce the same output. If decoding looks wrong, check separators, unsupported characters, or whether the input is actually encoded.

Frequently asked questions

Can base64 encoder encode and decode?

Where possible, the tool detects encoded input and converts it back. Some ciphers use a fixed direction or fixed shift.

Is base64 encoder secure encryption?

No. These are learning, formatting, puzzle, and utility converters. Do not use them to protect private data.

Why does base64 encoder decoding fail?

Encoded text must follow the expected format, such as spaced binary bytes, valid Base64, URL-encoded text, or matching ASCII/hex values.

Does base64 encoder decoder save my text?

No. Base64 Encoder Decoder runs in your browser and does not need an account.