Developer

Base64 Encoder and Decoder

Encode text to Base64 and decode Base64 back to plain text, instantly and in your browser. Nothing is sent to a server, so your data stays with you.

What this tool does

Base64 is a way of representing binary or text data using only 64 safe, printable characters: the letters A to Z and a to z, the digits 0 to 9, plus the symbols + and /. This tool converts your text into Base64 and turns Base64 strings back into readable text. Both directions run entirely in your browser, which means the content you paste, including anything private, never travels across the network.

How to use it

To encode, paste your text into the input and read the Base64 result. To decode, paste a Base64 string and get the original text back. Copy the output with one click when you are done. The tool handles everyday text smoothly and is perfect for quick conversions during development or debugging.

  • Encode plain text into Base64
  • Decode Base64 back into readable text
  • Copy results instantly
  • Runs locally, nothing is uploaded

Why it matters

Base64 exists because some systems only handle plain text reliably. Encoding data this way lets you move it safely through channels that were not built for raw binary. Common uses include data URIs that embed small images or fonts directly inside HTML and CSS, packing binary content into JSON or XML payloads, and carrying credentials or tokens in HTTP headers. It is worth remembering that Base64 is encoding, not encryption. It hides nothing and anyone can decode it, so it is about safe transport and embedding rather than security. Doing it in your browser keeps the process fast and private. This free tool comes from Digzy Technology, a software studio in Bali, Indonesia that builds websites, stores and apps.

FAQ

Frequently asked questions

Is Base64 the same as encryption?
No. Base64 only reformats data into safe characters and provides no security at all. Anyone can decode it, so never use it to protect secrets.
What is Base64 used for?
It is commonly used for data URIs that embed images or fonts in web pages, for including binary data in JSON or XML, and for encoding values in HTTP headers.
Does my text get sent anywhere?
No. Encoding and decoding happen entirely in your browser, so your input never leaves your device.
Why does Base64 output look longer than my input?
Base64 represents every three bytes of data as four characters, so the encoded text is roughly a third larger than the original. That is a normal trade-off for safe transport.
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