About Base64 Encoder Decoder
Base64 is an encoding scheme that converts binary or text data into ASCII characters using 64 characters (A-Z, a-z, 0-9, +, /). It is widely used for encoding data in emails (MIME), embedding images in HTML/CSS, API authentication tokens, and transmitting binary data as text.
This tool supports full Unicode including all Indian language scripts โ Hindi, Telugu, Tamil, Kannada and more. The encoding uses UTF-8 internally so multilingual text is handled correctly.
Frequently Asked Questions
What is Base64 used for?+
Base64 is used for: embedding images in HTML/CSS (data URIs), encoding email attachments (MIME), Basic HTTP authentication (username:password encoded), JWT tokens, storing binary data in JSON or XML, and transmitting data safely through text-only systems.
Does Base64 encrypt my data?+
No. Base64 is encoding, not encryption. Anyone who has the Base64 string can easily decode it. Do not use Base64 for security โ use proper encryption (AES, RSA) for sensitive data.
Why does Base64 output end with == signs?+
Base64 encodes 3 bytes into 4 characters. If the input length is not a multiple of 3, padding characters (=) are added at the end to make it a multiple of 4. One = means 1 padding byte, == means 2 padding bytes.
Can I encode Hindi or Telugu text in Base64?+
Yes. This tool first converts the text to UTF-8 bytes, then encodes to Base64. So Hindi "เคจเคฎเคธเฅเคคเฅ" can be Base64 encoded and decoded correctly.
How much larger is Base64 than the original?+
Base64 encoded output is approximately 33% larger than the original. 3 bytes of input become 4 Base64 characters. A 100KB file becomes about 133KB in Base64.