Base64 Encoder & Decoder
Convert text to Base64 or decode Base64 back into readable UTF-8 text. The conversion runs locally in your browser, including support for Unicode characters and emoji.
Local Processing
Your tool input is processed locally in your browser and is not sent to DevToolsLabs servers.
Raw Text String
Base64 Result
How to use this tool
- Choose Encode or Decode mode.
- Paste text or a Base64 value into the input field.
- Review the converted result as it appears.
- Copy the output for use in your application or terminal.
Example Usage
Hello World!
SGVsbG8gV29ybGQh
eyJhbGciOiJIUzI1NiJ9
{"alg":"HS256"}When to use this tool
- Preparing HTTP Basic Authentication values.
- Inspecting encoded API payloads or JWT segments.
- Safely converting UTF-8 text for systems that require ASCII input.
Frequently Asked Questions
Is Base64 encryption?
No. Base64 is a reversible encoding format and provides no confidentiality. Do not use it to protect passwords or secrets.
Is my input uploaded?
No. Encoding and decoding use browser APIs on your device; the input is not sent to DevToolsLabs servers.
Does it support Unicode?
Yes. The converter uses UTF-8 byte conversion so emoji and non-Latin text are handled correctly.
Built by Developers, For Developers
DevToolsLabs is maintained as an open-source collection of focused developer utilities. Most transformations run locally in your browser; tools that require a network service disclose the destination beside the tool. Each utility is built around a concrete development workflow and can be reviewed in the public source repository.