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Base58 Encoder / Decoder

Encode or decode Base58 (Bitcoin alphabet) for text or hex. 100% client-side, private.

No uploads. No account. Free to use.

Bitcoin-style Base58.

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  • Files never leave your device
  • Runs entirely in your browser
  • No signup required
  • Free

What is Base58 Encoder / Decoder?

Base58 omits ambiguous characters (0/O/I/l) and is the encoding behind Bitcoin addresses and many content identifiers. Encode or decode safely in your browser.

Key features

  • Bitcoin alphabet (and note of variants)
  • text ↔ Base58
  • hex support
  • leading-zero preservation
  • client-side.

How to use it

  1. Paste
  2. choose encode/decode
  3. result.

When to use it

No risk of private keys or addresses leaving the device.

Frequently asked questions

Base58 vs Base64?

Different alphabet, no padding, human-friendlier. Checksum? Plain Base58 has none; Base58Check is higher-level. Uploaded? No.

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