Base64 is an encoding that represents binary data with a 64-character alphabet for text-based channels; it is not encryption. QR64Code converts Unicode text to UTF-8 bytes correctly and supports standard and URL-safe Base64 variants.
What changed in this update?
The tool, explanation, limits, sources, and accessible form flow were reviewed together.
How to use it
- 1
Paste text into the input field.
- 2
Choose standard or URL-safe output.
- 3
Run encode or decode, then copy the result.
Limits and security notes
Base64 does not hide data or provide security on its own. Encoded data is typically about one-third larger than the original.
Comparison
| Format | Difference | Use |
|---|---|---|
| Standard | Uses + and / | Email, MIME, general data |
| URL-safe | Uses - and _ | URLs and token fields |
| Encryption | Uses a key and security goal | Data that requires confidentiality |
Frequently asked questions
Is Base64 encryption?
No. Base64 is reversible encoding and does not protect confidential information.
Does it support Unicode?
Yes. The tool converts text to UTF-8 bytes, preserving non-Latin scripts and emoji.
What is the equals sign at the end?
The = characters are padding used to complete the final four-character group.