All Tools
Utilities
Base64 Encode / Decode
Encode text to Base64 or decode it back, free
Free
No sign-up
Fast
About this tool
Convert plain text to Base64 encoding, or decode a Base64 string back into readable text.
Frequently asked questions
What is Base64 actually used for?
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.
Is Base64 a form of encryption?
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.
Why did decoding fail on my input?
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.