Base58 Encode & Decode
An encoding without ambiguous characters, used in Bitcoin addresses. This tool does both encode and decode on one page — just pick a mode, paste your text, and click. Everything runs on your device, nothing is sent to a server.
Everything runs in your browser. Your data is never sent to our servers.
Example
Example Input
Hello
Example Output
9Ajdvzr
How to Use
- 1Choose Encode or Decode mode at the top.
- 2Type or paste your text into the Input field.
- 3Click the button (or press Ctrl+Enter) to process. The result appears in the Output field.
- 4Click Copy to copy the result, or "Swap input/output" to quickly reverse the operation.
About Base58
Base58 uses 58 characters — alphanumerics minus easily confused characters (0, O, I, l) and without symbols like + or /. It was created for Bitcoin so addresses are easy for humans to copy.
How it works: the data is treated as a large number and converted to base 58. Because it avoids ambiguous characters, the risk of mistyping/misreading is greatly reduced.
Base58 (and its Base58Check variant) is widely used in cryptocurrency for wallet addresses, keys, and hashes. It suits identifiers that are often copied by hand.
FAQ
Can this Base58 tool both encode and decode?
Yes. This is a single page with a toggle — use Encode mode to transform text, and Decode mode to reverse it. No need for two separate pages.
Is my data sent to a server?
No. Base58 is processed entirely in your browser. The text you enter never leaves your device.