About the Handiwork Base64 Encoder
The Base64 Encoder converts text and files to and from Base64 with live results. Choose encode or decode, type or paste your input, or upload a file — output updates instantly in your browser with UTF-8 support. Nothing is uploaded to a server.
How to use the Handiwork Base64 Encoder
- Choose Encode or Decode.
- Type or paste text, or upload a file to encode.
- Copy the live result from the output panel, or swap direction to reverse the conversion.
What is Base64 encoding?
Base64 represents binary data using 64 printable ASCII characters. It is not encryption — it simply makes arbitrary data safe to transmit through channels that only reliably handle text, such as email bodies, JSON payloads, and data URIs embedded in HTML or CSS.
When to use Base64
Common uses include embedding small images directly in HTML/CSS as data URIs, encoding credentials for HTTP Basic Auth, and storing binary blobs in text-only fields. The tool shows character count, byte size, and approximate size increase when encoding — Base64 adds roughly 33% overhead, so it suits small payloads rather than large files.
Frequently asked questions
Is Base64 a form of encryption?
No. Base64 is reversible encoding, not encryption. Anyone can decode it, so never use it to protect secrets.
Does Base64 support Unicode text?
Yes. This tool handles UTF-8, so emoji and non-Latin characters encode and decode correctly.
Can I encode a file?
Yes. In encode mode, use the file upload area to select a file. The Base64 output appears instantly, along with the file name and size. Processing happens entirely in your browser.