[FREE] Base conversions extension 🔃 Change numbers from one base into another, Base64, hex, binary, ascii and more

[Appsbeheerder]

BaseToBase Extension

Introduction

In the world of digital communication, the conversion of numbers between different formats is often a necessity. Because of the lack of these conversions in one place, the "BaseToBase" extension is here to simplify this process for you in Appinventor compatibles. This extension is designed to convert numbers from one base into another and vice versa. Whether you're working with hexadecimal, binary, integer, char codes, octal, ASCII (text), or Base64, this extension has you covered. Use it in any project, but keep the credits.

Technical info

Extension

• Current version: V1.0.16 (Update to V15)
  Improvement how hex numbers are shown with odd digits. They get a leading zero.
  To the Codeberg git repository for download
• Minimum Apilevel: 1
• Permissions: No extra (Manifest.xml) permissions needed
• Binary extension license: The 3-Clause BSD License (following at the end of this page)

Example

• Extension to test AIA

• Extension to use APK - Ready to run

Functions

The "BaseToBase" extension offers a variety of functions to help you with number conversions.

AsciiToHex

• Description: Convert Text (ASCII) to Hexadecimal.
• Input: Text (e.g., "Hello!").
• Output: Hexadecimal representation (e.g., "48656c6c6f21").

HexToAscii

• Description: Convert Hexadecimal to Text (ASCII).
• Input: Hexadecimal number (e.g., "48656c6c6f21").
• Output: Text (e.g., "Hello!").

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Base64ToHex

• Description: Convert Base64 to Hexadecimal.
• Input: Base64-encoded string (e.g., "SGVsbG8h").
• Output: Hexadecimal representation (e.g., "48656c6c6f21").

HexToBase64

• Description: Convert Hexadecimal to Base64.
• Input: Hexadecimal number (e.g., "48656c6c6f21").
• Output: Base64-encoded string (e.g., "SGVsbG8h").

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BinaryToHex

• Description: Convert Binary to Hexadecimal.
• Input: Binary number (e.g., "010010000110010101101100011011000110111100100001").
• Output: Hexadecimal representation (e.g., "48656c6c6f21").

HexToBinary

• Description: Convert Hexadecimal to Binary.
• Input: Hexadecimal number (e.g., "48656c6c6f21").
• Output: Binary representation (e.g., "010010000110010101101100011011000110111100100001").

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IntegerToHex

• Description: Convert Integer to Hexadecimal.
• Input: Integer number (e.g., "79600447942433").
• Output: Hexadecimal representation (e.g., "48656c6c6f21").

HexToInteger

• Description: Convert Hexadecimal to Integer.
• Input: Hexadecimal number (e.g., "48656c6c6f21").
• Output: Integer number (e.g., "79600447942433").

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OctalToHex

• Description: Convert Octal to Hexadecimal.
• Input: Octal number (e.g., "2206255433067441").
• Output: Hexadecimal representation (e.g., "48656c6c6f21").

HexToOctal

• Description: Convert Hexadecimal to Octal.
• Input: Hexadecimal number (e.g., "48656c6c6f21").
• Output: Octal representation (e.g., "2206255433067441").

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Helper blocks

XtensionInfo

• Description & Output: Extension version info & copyright.

XtensionUUID

• Description & Output: Extension UUID

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Example code block

Input: "Hello!"

Extension UUID

• f9c820d0-4054-4e99-a0e8-68abba7e653a

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FAQ - Frequently Asked Questions

• Why do I need an input integer as string?
  Because the Biginteger library is used. Those big numbers do not fit in the standard java integer. On the other hand, you can use real big numbers. The limit is 32 * 2^32-1 bits for BigInteger or about 2^(4 billion). The output is also an integer as string.

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Copyrights & License

• Eric M. Kok (appsbeheerder)
  For the (compiled Java source) BaseToBase extension the The 3-Clause BSD License is applicable.

  The 3-Clause BSD License
  BaseToBase, Copyright 2023 Eric M. Kok (appsbeheerder)

  Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
  2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
  3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

[Android_Creator]

Useful extension

[Anthony_Oscar]

Useful extension, but cannot be accessed.
Please can you upload it again?

[Patryk_F]

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