Base64 Encoding: What It Is and When to Use It
01Why Base64 Matters
Base64 encoding converts binary data to text. It's essential for email attachments, JSON APIs, and embedding images in HTML/CSS.
Email Attachments
SMTP was designed for text. Base64 encodes binary files for email transmission.
StandardMIME
Used byEvery email client
Data URLs
Embed images directly in CSS or HTML without extra HTTP requests.
Use CaseIcons, small images
Trade-offLarger file size
API Payloads
Send binary data (images, files) through JSON APIs safely.
Common inREST APIs
AlternativeMultipart forms
02Try Our Base64 Tool
Convert text to Base64 and back. Upload images to get data URLs. Perfect for developers working with APIs.
Turbo: 1x