Base64 Encoder/Decoder
Free Base64 encoder and decoder for text or files in your browser. Convert to Base64 and back without uploading anything to GraphicByte.
Los nombres, instrucciones y contenidos generados de las herramientas pueden estar en inglés.
Acerca de esta herramienta
Encode strings for data URLs, HTTP headers or embed snippets, or decode a Base64 blob back to readable text. You can also drop a small file and encode its bytes.
Encoding uses UTF-8 in this tab. Large binaries stay on your machine; we never store the file.
Cómo usarla
- Paste text, or drop a file to encode its bytes.
- Click Encode or Decode.
- Copy the output. Decode fails if the input is not valid Base64.
Preguntas frecuentes
Is this a URL-safe Base64 encoder?
This tool uses standard Base64 (btoa/atob) with UTF-8 text. For URL-safe variants, swap +/ and padding in your own code after you copy.
Can I encode an image to Base64?
Yes. Drop the file and encode. The result is the raw byte string, not a full data: URL prefix.
Does GraphicByte keep the file?
No. The file is read in the browser and discarded when you leave the page.