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Base58 Encoder & Decoder

Encode and decode Base58 and Base58Check. Supports text or hex input, used by Bitcoin, Solana, and IPFS.

Free No signup Client-side Privacy friendly

How to use

  1. 1 Pick Encode or Decode.
  2. 2 Pick the variant — plain Base58 or Base58Check (adds 4-byte sha256d checksum).
  3. 3 Choose input/output type (UTF-8 text or hex bytes).
  4. 4 Paste data; output updates instantly. Use Swap to flip input and output.

Why use this tool

  • Base58 is the encoding used in Bitcoin, Solana, IPFS CIDv0, and many crypto address formats — case-sensitive but omits the visually-confusable 0/O/I/l.
  • Base58Check adds a 4-byte double-SHA-256 checksum — used by Bitcoin / Litecoin / TRON legacy addresses to catch typos.
  • Switch between text and hex modes for arbitrary binary data.
  • Pure client-side — runs in your browser, no upload.

Frequently asked questions

Difference between Base58 and Base58Check?

Base58 is just a numeral system. Base58Check prepends nothing but appends the first 4 bytes of `sha256(sha256(payload))` as a checksum — so a single typo will fail to decode.

Why is Base58 used instead of Base64?

Base64 has the visually confusable pair "0/O" and "1/l/I", and some characters (+, /, =) require URL escaping. Base58 omits all of those — safer to print on paper, paste into a text field, or speak out loud.

Is Base58 self-synchronising?

No. Leading zero bytes are encoded as leading "1" characters, so a Base58 string of length N does not have a fixed-size decode. Use Base58Check for length-validated payloads.

Does this support all Base58 variants?

It uses the Bitcoin alphabet (`123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz`), which is shared by Solana, IPFS, and most modern uses. The Flickr / Ripple alphabets are different — not supported.

Summary

Base58 Encoder & Decoder is a free web3 utility by Zerethon Tools. Encode and decode Base58 and Base58Check. Supports text or hex input, used by Bitcoin, Solana, and IPFS. Runs entirely in the browser — no signup, no upload.

Category
Web3
Pricing
Free
Privacy
Browser-based
Signup
Not required

Privacy

Your data never leaves your browser unless explicitly stated. Base58 Encoder & Decoder runs entirely client-side — no server upload, no logging, no tracking of your input.

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