DNA Compare Tool

Compare two DNA sequences to calculate similarity, identify differences, and visualize alignments instantly.

Comparison Results

0%
Similarity
0
Matches
0
Mismatches
0
Gaps

Alignment View:

Compare sequences to see alignment...

What is DNA Compare?

DNA Compare tool analyzes two sequences to calculate similarity percentage, identify exact matches, mismatches, and gaps. Perfect for sequence validation and comparative genomics.

How to Use This Tool

Quick guide to compare sequences:

  1. Paste first DNA sequence
  2. Paste second DNA sequence
  3. Click Compare button
  4. View similarity stats and alignment

When to Use

This tool is useful when you need to:

  • Validate sequencing results
  • Compare wild-type vs mutant sequences
  • Check primer binding sites
  • Identify sequence variations

Example Input

Sample sequences:

Seq1: ATCGATCGATCG
Seq2: ATCGAACGATCG

Try with your own sequences or use the Example button.

Understanding Results

Result metrics explained:

  • Similarity: Percentage of matching positions
  • Matches: Identical nucleotides at same position
  • Mismatches: Different nucleotides at same position
  • Gaps: Length differences between sequences

FAQ

Q: Can I compare sequences of different lengths?
A: Yes, the tool handles different lengths by padding the shorter sequence.

Q: Does the tool support FASTA format?
A: The tool processes plain DNA sequences. Headers are ignored.