Data transmission on the web: Converting files and images to Base64
Learn what Base64 encoding is, how to embed files and images directly in your HTML code, and the associated performance costs.
Data transmission on the web: Converting files and images to Base64
Transporting binary data (such as images, audio, or PDF documents) through protocols designed exclusively for plain text (such as JSON or HTML) represents a classic challenge in software development. The standard solution is Base64 encoding.
How Base64 works
Base64 takes groups of 3 bytes (24 bits) and redistributes them into 4 groups of 6 bits each. Each group of 6 bits translates to a corresponding character within the 64-character Base64 alphabet (letters, numbers, and the `+` and `/` symbols).
Proceso de Codificación:
[Datos Binarios (3 Bytes)] ➔ 24 Bits ➔ 4 bloques de 6 bits ➔ [Texto Base64 (4 Caracteres)]
Common use cases
- Data URIs: Embed images directly into HTML tags using `src="data:image/png;base64,..."`.
- REST APIs: Send attachments within structured JSON payloads.
- Security: Securely send basic authorization credentials in HTTP headers.
To convert files and images to Base64 (or decode them) locally, instantly and securely, use our tool:
Process your images and files locally without uploading them to external servers to maintain the privacy of your information.
