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Visual Code & Text Comparator

Online Diff Checker & Text Comparator

Instantly compare two texts or code files side-by-side. Highlight deletions, additions, and edits in real-time with zero server uploads.

Original (Before)6 lines
Modified (After)7 lines
+5 added-4 removed
Side-by-Side Diff View11 total rows
1-
function calculatePricing(basePrice, taxRate) {
2-
  const tax = basePrice * taxRate;
3-
  const total = basePrice + tax;
4-
  console.log("Total computed: " + total);
1+
function calculatePricing(basePrice, taxRate, discount = 0) {
2+
  const subtotal = Math.max(0, basePrice - discount);
3+
  const tax = subtotal * taxRate;
4+
  const total = subtotal + tax;
5+
  console.info("Pricing calculation completed:", { subtotal, tax, total });
56
  return total;
67
}

Frequently Asked Questions

How does this online diff checker work?

ToolOut computes differences in real-time using the Longest Common Subsequence (LCS) dynamic programming algorithm directly in your browser. Green lines indicate newly inserted code, while red lines represent deleted segments.

Can I compare proprietary or secret code safely?

Yes, absolutely. Unlike other online diff checkers that send your code to remote servers, ToolOut performs all text comparisons 100% locally in your browser memory. Your intellectual property never leaves your device.