Question 1

Is this Base64 tool secure?

Accepted Answer

Yes, all data encoding and decoding is processed locally in your browser leveraging the standard Web API. No data is transmitted externally.

Question 2

Does it support Unicode (Emoji, CJK characters)?

Accepted Answer

Yes. Unlike standard JavaScript btoa() and atob() which fail on multi-byte characters, our tool correctly translates UTF-8 bytes to ensure Emojis and CJK languages encode flawlessly.

Question 3

What is Base64 used for?

Accepted Answer

Base64 is widely used by developers to embed binary data within web texts (like Data URIs for images), encode credentials for Basic Authentication, or ensure data travels safely over string-oriented systems like XML and JSON.

Question 4

Are there any size limits?

Accepted Answer

Since processing happens in memory, extremely large files (hundreds of MBs) might slow down your browser tab. For standard text and small data, it is virtually instant.

Question 5

Can I encode binary files?

Accepted Answer

Currently, this tool is optimized for text-to-base64. For images or PDF binary files, we recommend using our specialized file-based converters.

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