Highlight Integers

Highlight Integers scans your text and highlights every integer it finds. Whether they’re inside full lines or embedded in mixed content, this tool wraps them in a visual marker so they stand out. You control how it behaves toggle negative number detection, limit highlights to whole-line numbers, and see changes in real time.

It’s perfect for spotting numbers inside logs, text blocks, or raw data and everything updates instantly in your 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 matches: 0
Options
Highlight negative numbers
Only highlight full-line integers
Maximize output

How to Use:

  • Paste or type your text into the Input Text box.
  • Or click Choose File to import a supported text file.
  • Toggle Highlight negative numbers to include values like -42.
  • Toggle Only highlight full-line integers to match lines like 123, but skip abc 123 xyz.
  • Toggle Maximize output to expand the result area.
  • The Highlighted Output updates live with yellow highlights around each match.
  • Use Copy Output to grab the plain version without markup.
  • Click Export to File to download the plain text result.
  • Hit Clear All to reset everything and start over.

Supported file types: .txt, .csv, .tsv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css

What Highlight Integers can do:

You can use this tool to:

  • Visually extract numbers from noisy data
  • Debug logs or documents that hide integers in blocks of text
  • Spot lone numeric values or isolate embedded matches
  • Customize your output show full lines or inline matches
  • Export or copy cleaned results without the highlight tags

It’s real-time, reliable, and works fully client-side.

Example:

Before:

This is 42.
Line 2 has -17 and 100.
Only words here.
12345
-999
abc123xyz

Options:

  • Highlight negative numbers: Yes
  • Only highlight full-line integers: No

After:

This is 42
Line 2 has -17 and 100.
Only words here.
12345
-999
abc 123 xyz

Common Use Cases:

Need to extract numbers from messy files? Want to highlight every instance of an ID, code, or count? Highlight Integers helps you scan text fast and isolate the values that matter. It’s simple, powerful, and updates live as you work.

Useful Tools & Suggestions:

After using Highlight Integers, you might want to try Color Integer Digits to bring more visual clarity to patterns inside each number. And if you’re comparing sets, Compare Integers makes it easy to spot overlaps or differences at a glance.

Related Tools