Compare two DNA kits directly
Enter two DNA kit numbers from any major provider to instantly find shared DNA segments, estimate relationships, and discover genetic connections. No file uploads required—just enter kit numbers and get results in seconds.
Why compare DNA kits?
Direct kit comparison is the fastest way to find genetic matches and estimate relationships without uploading files.
Shared DNA Segments
Identify exact chromosome segments shared between two kits. See segment length, location, and centimorgan values for detailed analysis.
Relationship Estimation
Automatically estimate the likely relationship between two kits based on shared DNA percentage. Get probability ranges for different relationship types.
Genealogy Research
Perfect for genealogy research when you have kit numbers from different providers. Compare kits across platforms instantly.
Instant Results
No file uploads or waiting. Enter two kit numbers and get comparison results in seconds. Works with all major DNA testing providers.
How the Kit Comparer Works
Simple three-step process to compare any two DNA kits
The Simple Version
DNA kit numbers are unique identifiers assigned by testing companies (like AncestryDNA, 23andMe, MyHeritage, etc.). Our tool connects to these databases to retrieve the genetic data associated with each kit number, then compares them to find shared segments. Because the kits are already processed and stored in public databases, we can compare them instantly without requiring file uploads.
Supported DNA Providers
Works with kit numbers from all major DNA testing companies
Kit numbers must be publicly accessible. Private kits or kits with restricted access cannot be compared.
Important Limitations
Understanding what this tool can and cannot do
Public Kits Only
Only kits that are publicly accessible can be compared. Private kits or kits with restricted privacy settings cannot be accessed.
Database Dependent
Results depend on the availability of kits in public databases. Some kits may not be found if they're not uploaded to comparison databases.
Relationship Estimates
Relationship estimates are probabilistic and based on shared DNA percentages. Actual relationships may vary, especially for distant relatives.
Not for Health Use
This tool is for genealogy and ancestry research only. It is not designed for health-related interpretations or medical decision-making.
Legal & Disclaimer
Please review before using
Intended Use
This tool is intended solely for genealogy and ancestry research purposes. It is not designed, intended, or suitable for health-related uses or medical decision-making.
Key Terms
- Privacy: Only publicly accessible kits can be compared. We respect privacy settings and cannot access private or restricted kits.
- No Health Claims: We explicitly disclaim responsibility for any health interpretations made from comparison results.
- Accuracy: Relationship estimates are probabilistic and should be used as guidelines, not definitive answers.
- No Warranty: This tool is provided "as is" without warranties of any kind.
- Data Source: Results depend on data availability in public databases. Some kits may not be accessible.
Compare DNA kits instantly
Find shared segments and estimate relationships between any two DNA kits—completely free.
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