Convert Integers to Hex Base

The Convert Integers to Hex Base tool transforms plain integers into hexadecimal values instantly. Just paste a list of numbers and the tool handles the rest with options to use uppercase or lowercase, add a 0x prefix, ignore bad lines, and format the output however you like. It’s a quick, reliable way to convert decimal to hex for coding, debugging, or prepping values for use in other systems.

The live preview updates as you type or change any setting. Everything happens in the browser.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .csv, .tsv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css
Total items: 0
Options
Trim values
Ignore invalid lines
Add 0x prefix
Maximize output
Hex Case:
Join with:

How to Use:

  • Paste one integer per line into the Input Text box.
  • Or import a file by clicking Choose File.
  • Use Trim values to clean up extra spaces from each line.
  • Use Ignore invalid lines to skip over anything that’s not a number.
  • Toggle Add 0x prefix to prepend 0x to each hex result.
  • Pick between Uppercase or Lowercase for the hex output.
  • Select a Join with option to control how the hex values are joined:
    • Comma
    • Space
    • Newline
    • Custom delimiter (you type it)
  • Use Maximize output if you need a larger output preview area.
  • Click Copy Output to copy the results.
  • Use Export to File to download the output.
  • Hit Clear All to reset everything.

What Convert Integers to Hex Base can do:

This tool makes decimal-to-hex conversion easy. Whether you’re dealing with memory addresses, byte values, color codes, or encoding data for systems that need hexadecimal, this tool formats the results the way you need. You get full control over prefixes, casing, and output format and it reacts instantly. It’s fast, client-side only, and handles large lists without breaking a sweat.

Example:

Input:

10
15
255
1024
4096

Output (uppercase, prefix on, comma-separated):

0xA,0xF,0xFF,0x400,0x1000

Output (lowercase, custom delimiter “-”):

a-f-ff-400-1000

Common Use Cases:

It’s great for programmers working with memory values or hardware-level addresses, or designers dealing with hex color values. You can use it to convert user input into encoded values, prep structured data, or debug input for APIs that require hexadecimal formats. It’s also helpful for students learning base conversions or anyone working with embedded systems.

Useful Tools & Suggestions:

After using Convert Integers to Hex Base, try Convert Hex Base to Integers to flip things back and test the round-trip. And if you’re handling multiple bases, Convert Integers to Binary Base is another useful format to explore.

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