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The most recent data you entered in this tool, stored only in this browser.
Save what you type here, in this browser? Your work would go into this browser's local storage, so a refresh or a trip to another tool does not wipe it. You also get a short list of previous entries under the form, each one restorable with a click. Nothing is ever uploaded, and there is no account.
Being straight about the trade-off: anything kept there can be read by anyone who can use this browser profile, and by any script that later runs on this site. A tool page can hold a private key, a password or a signed token. Saving is convenient; it is not private.
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About this tool
Encode UTF-8 text to Base64, or decode it back, with an optional URL-safe alphabet where + and / become - and _ and the padding is dropped. Multi-byte characters are handled correctly because the text is encoded to UTF-8 bytes first, so accented letters and emoji round-trip without corruption.Questions
- What is URL-safe Base64 for?
- Standard Base64 uses + and /, both of which have to be escaped inside a URL. The URL-safe variant swaps them for - and _ so the value can sit in a query string or a filename untouched.
- Is Base64 a form of encryption?
- No. It is a reversible encoding with no key, and anyone can decode it. Use the AES tool if you need actual confidentiality.