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What this tool does
Encode a short text value to Base64 or decode a token back to text. Useful for debugging headers, data URLs, and API fields.
A quick check without a terminal. Everything runs in your browser; your text is not uploaded.
Debugging a small token or preparing text for a data URL.
Using Base64 to store passwords or secrets.
UTF-8 aware
Text with accents and non-Latin characters is encoded correctly.
Two directions
Encode and decode in the same panel.
Browser-first
Everything runs in your browser; your text is not uploaded.
No install, no lock-in
Open the page, finish the job, and copy the result. No desktop software.
How to use
- 1
Paste your text
Add the text you want to work on.
- 2
Run the tool
Adjust the few options that matter, then start the job.
- 3
Take the result
Copy, download, or keep editing. Nothing is saved to an account.
Example
Hello, AIbyNow
SGVsbG8sIEFJYnlOb3c=
FAQ
Base64 Encoder questions
Is Base64 encryption?
No. It is an encoding, not protection. Anyone can decode it.
Is my text stored?
No. The text is processed in your browser.
What is the limit?
Up to 1 MB
Do I need an account?
No for the guest allowance. A free account gives 20 runs per tool per day; Pro gives 50.