data tool
Base64 Encoder/Decoder
Convert text to Base64 or decode Base64 back to text in the browser.
Paste data here. It stays in your browser.
Copy-ready result appears here.
How it works
- Uses browser Base64 APIs.
- Handles UTF-8 text.
- Shows both encoded and decoded output where possible.
Common use cases
- Encode test payloads.
- Decode basic credentials.
- Inspect data URLs.
Code example
btoa('hello')Base64 is not encryption
Base64 is an encoding format, not a security boundary. Anyone can decode it if they have the string.
Common uses
Base64 appears in data URLs, basic auth examples, JWT segments, and binary-to-text transport.
FAQ
Is my input uploaded?
No. This MVP runs tool logic in your browser and does not send tool input to a server.
Can I use this on mobile?
Yes. Pages are mobile-first and designed for quick copy, paste, and share workflows.
Does the tool store history?
No. The MVP does not store tool input history or create user accounts.
Should I verify important output?
Yes. These tools are designed for productivity, but production changes and financial decisions should be independently verified.
Can the tool run after the page loads?
Yes. The interactive logic runs in the browser once the static page and JavaScript island are loaded.
What input format should I use?
Use the examples on the page as a starting point, then replace them with your own local input.