What Is This Tool?
Base64 Encoder/Decoder converts UTF-8 text into Base64 and restores Base64 text to its original form.
What Can You Do With It?
Prepare text for a data format that needs Base64. Read a Base64 text value. Check Unicode text encoding.
How to Use This Tool
Step 1: Choose Encode text or Decode Base64. Step 2: Paste your input. Step 3: Read the result and use its copy icon.
How Does It Work?
Text is encoded as UTF-8 bytes and represented with the standard Base64 alphabet. Decoding reverses the byte encoding.
Key Benefits
Supports Unicode text including emoji. Results update instantly.
Limitations and Important Notes
Base64 is encoding, not encryption. This tool decodes UTF-8 text, not arbitrary binary files.
Privacy and Security
Your text is processed locally in your browser. This tool does not upload your input or save it on Usekit servers.
Real-World Example
Hello becomes SGVsbG8=. Decoding SGVsbG8= returns Hello.
Frequently Asked Questions
Does Base64 hide my text securely?
No. Anyone can decode it without a key.
Can this Base64 tool handle emoji?
Yes. Text is encoded with UTF-8.
Why does a binary Base64 string fail?
The decoded bytes must represent valid UTF-8 text.