# Text to Base58 Converter

Encode text to Base58 or decode Base58 back to text with the Bitcoin alphabet, which leaves out 0, O, I and l to avoid confusion. The tool converts your input to UTF-8 bytes, keeps leading zero bytes as leading 1 characters and checks every character when decoding. It suits developers working with Bitcoin, Solana and IPFS identifiers. Input is limited to 10 KiB because Base58 grows quadratically.

## Frequently asked questions

### What is Base58?

Base58 is a binary-to-text encoding that treats the data as one large number and writes it in base 58. It was introduced with Bitcoin to produce compact strings that are easy to read and copy. Its alphabet uses digits and letters but excludes 0, O, I and l.

### Which alphabet does the tool use?

It uses the Bitcoin alphabet 123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz, which Solana, IPFS and most libraries also use. Ripple and Flickr use different orders and are not supported.

### Can I try a known example?

The text hello world encodes to StV1DL6CwTryKyV and abc encodes to ZiCa. An empty input gives an empty result. Decoding those strings returns the original text.

### Is this Base58Check?

No. Base58Check, used for Bitcoin addresses, adds a version byte and a four-byte double SHA-256 checksum before encoding. This tool encodes the raw text bytes without any checksum.

### Why is there a 10 KiB limit?

Base58 conversion repeatedly divides one big number, so the work grows with the square of the input length. Base58 is meant for short values such as keys and addresses, and 10,240 bytes is far more than those need.

### How are leading zero bytes handled?

Each leading zero byte becomes a leading 1 character, and each leading 1 decodes back to a zero byte. Text rarely starts with a zero byte, but this keeps the encoding exact.

### Why does decoding fail with a message about UTF-8?

Many Base58 strings, such as public keys or addresses, hold random bytes rather than text. The tool only shows decoded data that is valid UTF-8 text, so it reports such inputs instead of printing unreadable characters.

### Why is my input rejected as invalid?

Characters outside the alphabet, including 0, O, I, l, spaces in the middle and punctuation, are not valid Base58. Leading and trailing spaces are removed before decoding.

### Is Base58 a form of encryption?

No. Base58 is a reversible encoding with no key, so anyone can decode it. Use it for readability, not secrecy.

### Is Base58 larger than Base64?

Slightly. Base58 needs about 1.37 characters per byte, while Base64 needs about 1.33. The small cost buys an alphabet without look-alike characters or punctuation.

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