Solana-Keygen

Security First: This conversion happens entirely in your browser - your private keys are never transmitted to any server or stored in any database. The process is 100% local and secure, protecting your sensitive wallet credentials.

Base58 to JSON Converter

Single Conversion

Bulk Conversion

Bulk Private Key to JSON Converter

This advanced tool enables you to convert multiple Solana Base58 private keys to JSON format in a single operation. Perfect for developers, wallet managers, and users who need to process multiple keys efficiently. While most users need to convert from JSON to Base58 for Phantom wallet compatibility, there are specific use cases where converting back to JSON format is necessary.

When to Use Base58 to JSON Conversion

While most current Solana wallets prefer Base58 format, there are several scenarios where JSON format is still needed:

Developer Use Cases

  • API Integration Some older Solana APIs and development libraries require JSON format keys
  • Legacy Systems Maintaining compatibility with systems that haven't updated to Base58
  • Testing Creating test wallets in both formats for comprehensive compatibility testing
  • Blockchain Analysis Converting keys for use with analysis tools that require JSON format

User & Organization Use Cases

  • Solflare Compatibility Earlier versions of Solflare wallet required JSON format
  • Backup Strategy Creating backups in multiple formats for redundancy
  • Organizational Standards Businesses that have standardized on JSON format for internal tools
  • Wallet Migration Moving from newer wallets back to legacy systems

Understanding Solana JSON Private Key Format

The JSON format of a Solana private key is an array of integers representing the bytes of the private key. Here's what it looks like and what each part means:

[240, 133, 238, 88, 73, 252, 13, 180, 204, 40, 222, 119, 82, 251, 21, 123, 180, 198, 176, 124, 225, 198, 156, 5, 215, 92, 198, 203, 61, 239, 171, 46]

Format Details

  • Array Structure: The JSON format is an array of 32 integers
  • Value Range: Each integer represents a byte (0-255)
  • Total Size: A complete Solana private key is always 32 bytes long
  • Encoding: The JSON representation uses decimal integer values rather than hexadecimal

JSON vs Base58

The same key in different formats:

Base58: 4xp3NFbi3U9qXCkXiU5C9UrFJLRcuW6TCQusPVS5JwNg

JSON: [240,133,238...]

Both represent exactly the same private key, just in different encodings. Base58 is more compact and human-friendly, while JSON format exposes the raw byte values.

Important: When working with JSON format private keys, ensure the array contains exactly 32 integers. Missing or extra values will result in an invalid key.

Tips for Bulk Key Conversion

Best Practices

  • Secure Environment: Perform conversions on a secure, offline computer when possible
  • Verify Results: After conversion, verify a sample of keys to ensure accuracy
  • Clear History: Clear browser history and cache after converting sensitive keys
  • Batch Size: Process keys in manageable batches rather than all at once
  • Labeling: Consider adding comments or labels to identify keys in your output file

Format for Input

To ensure successful conversion, format your input correctly:

# Correct format - one Base58 key per line: 4xp3NFbi3U9qXCkXiU5C9UrFJLRcuW6TCQusPVS5JwNg 5XzqYVdnRjsidcaQ56Qv71sVo6xpKFQFHgUGcPGjJVm4 ... # Avoid formats like: # - Keys with extra text # - Keys without line breaks between them # - Keys with quotes or other characters

Frequently Asked Questions

While the trend is moving toward Base58 format, there are several reasons to convert back to JSON format:

  • Working with older Solana development tools and libraries that require JSON format
  • Compatibility with legacy systems or wallets that haven't updated to support Base58
  • Creating comprehensive backups of your keys in multiple formats for redundancy
  • Specific development scenarios where access to the raw byte values is helpful
  • Integrating with custom systems that were built to work with the JSON format

Yes, this tool is designed with security as the highest priority:

  • 100% Client-Side: All processing happens in your browser - no server communication
  • No Storage: We don't store your keys or conversion results anywhere
  • No Analytics: We don't track what keys you're converting
  • Open Processing: The conversion logic is visible in the browser's JavaScript

For maximum security, consider using this tool on an air-gapped computer for highly sensitive keys.

This tool can handle dozens or even hundreds of keys at once, depending on your browser's performance. However, we recommend the following guidelines:

  • For typical use: 25-50 keys per batch is optimal for most browsers
  • For larger batches: Split into multiple conversions to avoid browser performance issues
  • For very large collections (1000+ keys): Consider using a dedicated script or tool designed for high-volume processing

The main limiting factor is your browser's memory and processing capability, not the tool itself.