Base64 Encoder & Decoder
Encode or decode UTF-8 text as Base64, with optional URL-safe output, directly in your browser.
How to encode and decode Base64
Paste UTF-8 text or a Base64 value, choose Encode or Decode, then copy the result. NeroTool processes the transformation locally in your browser.
Base64 and UTF-8 text
Base64 is designed to represent bytes as ASCII text. NeroTool encodes text as UTF-8 first, which means accented characters, symbols and other Unicode text can be handled consistently.
Base64 is encoding, not encryption
Base64 does not protect secrets. It is reversible and should not be used as a password-hiding or encryption mechanism. Use proper cryptography when confidentiality is required.
Standard and URL-safe Base64
Standard Base64 can contain plus and slash characters and may use padding. URL-safe Base64 replaces those characters and can omit padding, which is useful when the encoded value must travel through URL-oriented contexts.
Practical developer uses
- Represent small binary values inside text-based payloads.
- Inspect encoded values from APIs or configuration files.
- Prepare text for systems that require a Base64 representation.
- Decode Base64 values without sending them to a remote processing service.
Privacy and browser processing
The encoder and decoder run in the browser in this implementation. Your input does not need to be uploaded to a NeroTool processing server.
Frequently asked questions
What is Base64 used for?
Base64 represents binary data as text. It is commonly used when binary content needs to travel through text-oriented systems such as JSON, email or configuration files.
Can Base64 encode normal text?
Yes. NeroTool encodes UTF-8 text, so accented characters and other Unicode text are supported.
Does Base64 encrypt my data?
No. Base64 is an encoding, not encryption. Anyone with the encoded value can decode it.
Is my text uploaded?
The encoder and decoder process the input in your browser in this implementation. The text does not need to be uploaded to a NeroTool processing server.