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Base64 String Encoder

Used by developers, writers, and creators worldwide.

A Base64 string encoder converts any text into a Base64 string, the encoding used to move data safely through systems that expect plain text. Base64 represents binary or text as a limited set of ASCII characters, which is why it shows up everywhere — in data URLs, email attachments, API tokens, and basic auth headers. This tool encodes your input, handling Unicode correctly, so you get a valid Base64 string ready to paste wherever you need it. Type or paste your text and copy the result. It is ideal for embedding small assets, debugging encoded values, and preparing data for transport. Remember that Base64 is encoding, not encryption — anyone can decode it back to the original, so never use it to protect secrets. It simply makes arbitrary data safe to carry through text-based channels, which is exactly what it was designed to do.

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Free forever — no account required

How to use

  1. Choose your options above
  2. Click Generate
  3. Copy your result

Detailed instructions

  1. Type or paste the text to encode.
  2. Click Generate to produce Base64.
  3. Copy the encoded string.
  4. Paste it wherever you need it.

Use Cases

  • •Encoding text for a data URL
  • •Preparing a basic auth header value
  • •Debugging an encoded value
  • •Embedding a small asset inline
  • •Transporting data through text channels

Tips

  • →Base64 is encoding, not encryption.
  • →Never use it to protect secrets.
  • →It handles Unicode correctly.
  • →Decode it back with any Base64 tool.

FAQ

what is Base64 used for

Base64 encodes data as a safe set of ASCII characters so it can pass through text-based systems — data URLs, email, API tokens, and basic auth headers all use it. It lets arbitrary or binary data travel where only text is expected.

is Base64 the same as encryption

No. Base64 is encoding, not encryption — anyone can decode it back to the original instantly. It provides no security at all, so never use it to protect passwords or secrets. It only makes data safe to transport as text.

does it handle special characters

Yes. This encoder handles Unicode by converting the text to UTF-8 bytes before encoding, so accented letters, symbols, and emoji encode correctly and decode back to exactly what you put in, without corruption.