Hex Encode/Decode

Encode/Decode a string using Hex algorithm

Tags: encoder hex encode/decode

🚀 177,232 total conversions (123 this month)

Practice Python with coding challenges

Solve hands-on problems right in this editor: run the sample tests, submit, and get an AI code review.

All Python challenges
Easy

Rectangle Perimeter

Compute the perimeter of a rectangle from its sides.

You'll learn ArithmeticReturn values
BeginnerLearning-pathVariables
Easy

Dot Product of Two Vectors

Multiply two vectors element by element and add the results: the core operation of every neuron.

You'll learn VectorsDot product
Neural networksaimachine learning
Easy

Distance Between Points

Compute the straight-line distance between two points.

You'll learn Pythagorean theoremSquare roots
BeginnerFunctionsLearning-pathmath
Easy

Average of Three

Average three whole numbers.

You'll learn ArithmeticDivision
BeginnerLearning-pathVariables
Easy

To-Do List

Keep a list of tasks: add them, mark them done, remove them and report what is still pending.

You'll learn Typed collectionsRecords
BeginnerSimulationStrings
Easy

Prime Number Check

Decide whether a number is prime.

You'll learn DivisibilityLoop optimization
BeginnerLoopsNumbersStudent-beginner
Easy

Days in a Month

Return how many days a month has, including leap years.

You'll learn Calendar rulesHelper functions
BeginnerConditionsFunctionsLearning-path
Easy

Count Pairs With a Sum

Count pairs of positions whose values add up to a target.

You'll learn Pairs of indexesAvoiding double counts
ArraysBeginnerLearning-pathNested-loops
Easy

Min and Max Together

Find the smallest and largest value in one pass.

You'll learn Single passMultiple return values
ArraysBeginnerFunctionsLearning-path
Easy

Hollow Square

Draw the outline of a square with * characters.

You'll learn Edge detectionBuilding strings
BeginnerLearning-pathNested-loopsPatterns
Easy

Number Triangle

Build a triangle of increasing numbers.

You'll learn Growing rowsCounters across rows
BeginnerLearning-pathNested-loopsPatterns
Easy

Pyramid Rows

Draw a right-aligned pyramid of # blocks.

You'll learn String patternsPadding
BeginnerLearning-pathNested-loopsPatterns

Introduction

This online Hexadecimal encoder tool makes it easy to convert strings into hexadecimal format and back again. Whether you're working with text or numbers, this tool simplifies the process and saves you time.

How to Use This Tool

  1. Paste your string directly into the editor or type it in.
  2. Click the Encode or Decode button to convert your string to or from hexadecimal format.
  3. After encoding or decoding, you can:
    • Download the result.
    • Save or share it with others using a short link.
    • Sign in with Google or GitHub to save your results to your account for later use.

What is Hexadecimal?

Hexadecimal (or hex) is a base-16 numbering system that simplifies the representation of binary data. It uses 16 symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F. Each hex digit represents a 4-bit binary sequence, making it much easier to write and read binary numbers.

For example:

  • Binary to Hex: 11010100 → D4
  • Hex to Binary: FFFF3 → 11111111111111110011

Why Use Hexadecimal?

Hexadecimal is commonly used in computing and digital systems because it is more compact and readable than binary. It’s often used for memory addresses, color codes, and representing data in ASCII or Unicode character sets.

For more details, check out this helpful guide.

Examples

Before encoded

      
Hello, World!
      
    

After encoded

      
48656c6c6f2c20576f726c6421