base58check

What it is and what it does

Base58Check is a Python implementation of the Base58Check encoding scheme, a modified Base58 binary-to-text encoding commonly used in Bitcoin and other cryptocurrencies to represent byte arrays as human-readable strings. It provides two core functions: b58encode to convert bytes into Base58Check format, and b58decode to reverse the process. The package has no external runtime dependencies, making it lightweight and easy to integrate.

The library is designed for encoding cryptographic identifiers like Bitcoin addresses. It enforces bytes input for consistency with Python's encoding conventions, requiring text to be explicitly converted to bytes before encoding. The package is actively maintained in its repository, though no new releases have been published since version 1.0.2 in 2018.

Use it for:

• Encoding Bitcoin addresses or other cryptocurrency identifiers into human-readable Base58Check format for display or storage.
• Decoding Base58Check-formatted strings back to their original byte representation for cryptographic validation or processing.
• Building cryptocurrency wallet software or blockchain explorers that need to handle address encoding/decoding.
• Implementing altcoin support in applications that use Base58Check for their own address schemes.

Worth the install?

AI-flagged interpretation of the facts on this page — verify before relying

Encodes and decodes byte arrays using the Base58Check scheme, a binary-to-text encoding used primarily for Bitcoin addresses and similar cryptographic identifiers.

Yes, if you need Base58Check encoding for Bitcoin or cryptocurrency work. The package is lightweight, dependency-free, and permissively licensed. However, note that no releases have been published since 2018, so verify that it meets your Python version requirements and handles edge cases your use case requires before relying on it in production.

Install

base58check on PyPI

pip install base58check

uv add base58check

poetry add base58check

Installing base58check

Before you install

Installation is straightforward with no runtime dependencies. The package is marked active with a recent commit in 2026, though the last release was in 2018 and no updates have been published since.

License in practice

Licensed under MIT (permissive), so you can use, modify, and distribute this package freely in commercial and private projects with minimal restrictions.

Quickstart

pip install base58check

import base58check

# Encode bytes to Base58Check
encoded = base58check.b58encode(b'1BoatSLRHtKNngkdXEeobR76b53LETtpyT')

# Decode Base58Check back to bytes
decoded = base58check.b58decode(encoded)

Input to b58encode must be bytes; use .encode('ascii') on text strings before encoding.

Verify before relying

• Whether the package handles checksum validation correctly for Bitcoin addresses or other use cases.
• Current Python version support beyond the classifiers (3.3–3.6 listed, but modern support unclear).
• Whether this implementation is compatible with other Base58Check libraries or reference implementations.

Package facts

Evidence: base58check-1.0.2-py2.py3-none-any.whl

Keywords: base58, base58check, encoding, decoding, bitcoin, altcoin

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