Codec
How to use
What it does
Converts text back and forth between several encodings: Base64, URL percent-encoding, letter-case transforms, HTML entities, and binary, octal, decimal or hex number bases. It is useful for debugging API parameters, inspecting escaped links, or turning an unreadable blob back into plain text. Every calculation runs locally; nothing you type leaves the browser. A Morse-code converter is merged as an extra tab.
How to use it
Pick the encoding you need (Base64 or URL, for instance), paste the source text into the top field, then use the encode and decode buttons for the matching result. In the number-base section, choose a source and target base before typing a value. Results can be copied with one click, or fed straight back in as input for another pass.
FAQ
Is the Base64 conversion safe for Chinese or emoji?
Yes - text is UTF-8 encoded before Base64, so multi-byte characters survive a round trip intact.
Which conversions are included?
Base64, URL percent-encoding, HTML entities, case transforms, and binary, octal, decimal and hex number bases.
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