Encoding utility
Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 back to text with auto-detect and optional URL-safe alphabet.
Encoding utility
Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 back to text with auto-detect and optional URL-safe alphabet.
Tool switcher
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Study notes
Related articles
Short guides for common searches around Base64 Codec. Written like lab notes, not marketing.
base64 binary decode, decode base64 to hex, non text base64 output
When Base64 decode is not text
Tools should show hex if bytes are not valid UTF-8.
Read article →base64 image data uri, data:image base64, embed image base64
Data URI Base64 for tiny images
data:image/png;base64,... — strip the prefix before decode.
Read article →base64 pdf decode, email attachment base64, mime base64 pdf
Base64 PDF attachments in email
MIME bodies are often Base64 — decode to file in a lab.
Read article →