Base encoding and decoding for Object Pascal

SimpleBaseLib4Pascal is a base encoding/decoding library for Object Pascal with support for multiple base families, non-allocating APIs, and stream-based APIs across Delphi and FreePascal.

• Features
• Available Encodings
• Getting Started
• Quick Examples
• Running Tests
• Tip Jar
• License
• Branding

• Base encoding/decoding implementations for common and extended base families.
• Multiple alphabet variants for several bases (for example Base32, Base58, Base64, Base85).
• Non-allocating TryEncode/TryDecode APIs for performance-sensitive paths.
• Stream-based encode/decode support for large inputs.
• Compatible with both Delphi and FreePascal toolchains.

• Base2
• Base8
• Base10
• Base16
• Base32 (RFC 4648, Crockford, Extended Hex, and more)
• Base36
• Base45
• Base58 (Bitcoin, Ripple, Flickr, Monero variants)
• Base62
• Base64 (Default, URL-style variants)
• Base85 (Ascii85, Z85)

• Delphi: 2010 and above
• FreePascal: 3.2.2 and above

1. Open package:
   • SimpleBaseLib/src/Packages/Delphi/SimpleBaseLib4PascalPackage.dpk
2. Build and install the package in the IDE.
3. Add SimpleBaseLib/src subfolders to your project search path if needed.

1. Open package:
   • SimpleBaseLib/src/Packages/FPC/SimpleBaseLib4PascalPackage.lpk
2. Build/install package in Lazarus, or add SimpleBaseLib/src paths to your FPC project.

uses
  SysUtils, SbpBase16;

var
  LBytes: TBytes;
  LText: String;
begin
  LBytes := TBytes.Create($DE, $AD, $BE, $EF);
  LText := TBase16.UpperCase.Encode(LBytes); // DEADBEEF
  LBytes := TBase16.UpperCase.Decode(LText);
end;

uses
  SysUtils, SbpBase64;

var
  LData: TBytes;
  LEncoded: String;
begin
  LData := TBytes.Create($FB, $FF, $EF);
  LEncoded := TBase64.Url.Encode(LData);
  LData := TBase64.Url.Decode(LEncoded);
end;

Tests are provided for both Delphi and FreePascal.

• Delphi: open and run
  • SimpleBaseLib.Tests/Delphi.Tests/SimpleBaseLib.Tests.dpr
• FreePascal/Lazarus: open and run
  • SimpleBaseLib.Tests/FreePascal.Tests/SimpleBaseLib.Tests.lpi

If you find this library useful and would like to support its continued development, tips are greatly appreciated! 🙏

Cryptocurrency	Wallet Address
Bitcoin (BTC)	bc1quqhe342vw4ml909g334w9ygade64szqupqulmu
Ethereum (ETH)	0x53651185b7467c27facab542da5868bfebe2bb69
Solana (SOL)	BPZHjY1eYCdQjLecumvrTJRi5TXj3Yz1vAWcmyEB9Miu

This project is licensed under the MIT License.