Convert plain text to Base64 encoding, or decode a Base64 string back into readable text.
Frequently asked questions
It's a way to represent binary or text data using only printable ASCII characters — commonly used for embedding data in URLs, emails, JSON payloads, or config files that only safely support plain text.
No — Base64 is just an encoding scheme, not encryption. It has no security value; anyone can decode it instantly. Don't use it to protect sensitive data.
The text you're decoding needs to actually be valid Base64 (only letters, numbers, +, /, and = padding) — if it contains other characters or is truncated, decoding will fail.