Base64 is mistaken for encryption
Anyone can decode it, so it does not protect sensitive data.
Use real encryption or signing for secrets.
Base64 Encoder / Decoder
☆ HotEncode UTF-8 text to Base64 or decode Base64 back to text for free. The conversion runs locally in your browser, with no upload and no sign-in.
Base64 Encoder / Decoder overview
The Base64 tool encodes and decodes UTF-8 text for API fields, config inspection and test strings. Text is converted locally in the browser and is not saved.
How to use Base64 Encoder / Decoder
- 1Paste UTF-8 text into the left editor when you want to encode it.
- 2Click Encode to generate a Base64 string on the right.
- 3To decode, paste a Base64 string into the left editor and click Decode.
- 4Click Copy to copy the current output.
Troubleshooting
Decoding fails
The string may be incomplete, include extra text or not represent UTF-8.
Remove whitespace and surrounding labels, then decode only the Base64 body.
Image Base64 is awkward here
Images need MIME type handling, preview and downloads.
Use Image to Base64 for Data URLs and image restore.
Base64, URL encoding, hashing and encryption
Base64 is often confused with security features. It is encoding, not protection.
| Method | Purpose | Secret? | Common use |
|---|---|---|---|
| Base64 | Represent content as text-safe characters | No, reversible | API fields, simple config, Data URL content |
| URL encoding | Escape special URL characters | No, reversible | Query strings and form redirects |
| Hashing | Create a one-way digest | Cannot restore original | File checks and signatures |
| Encryption | Protect content with keys | Depends on key handling | Sensitive storage or transfer |
Base64 Encoder / Decoder examples
UTF-8 text encoding
Text
KitVerse free online toolbox
Base64
S2l0VmVyc2UgZnJlZSBvbmxpbmUgdG9vbGJveA==
Base64 is reversible encoding, not encryption.
Use cases
API parameter checks
Encode or decode Base64 text fields while testing APIs.
Config inspection
Decode Base64 values in configuration or environment variables.
Test strings
Generate copyable encoded values for fixtures, mocks and docs.
FAQ
Is Base64 encryption?›
No. Base64 is reversible encoding and should not be used to protect secrets.
Is my text uploaded?›
No. Encoding, decoding and copying happen locally in the browser.
Does it support non-English text?›
Yes. The tool handles UTF-8 text, including Chinese and common symbols.
Why does Base64 decoding fail?›
The string may be incomplete, include non-Base64 characters, contain extra pasted text or not represent UTF-8 text.
Can I process image Base64 here?›
This page is for text. Use Image to Base64 for Data URLs, previews and image downloads.
Does Base64 reduce size?›
Usually no. Base64 is typically larger than the original binary data.
Do I need an account?›
No. The tool is free and requires no sign-in.
Can I use the output in an API?›
Yes, when the API expects Base64 text. Check whether the API needs a prefix, URL-safe variant or a specific character set.