
Free G25 tools in 2026: the complete toolbox for your Global25 coordinates
Everything you can do with a Global25 row without paying anyone: distance rankings, admixture fits, PCA plots, averaging, authenticity checks — Vahaduo, nMonte and the Ancestrify Lab, honestly compared.
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What is a good G25 fit distance? The number everyone reads wrong
The fit distance measures how far a mixture still sits from your coordinate — not whether the model is right. Calibrated bands for reading one, why lower stops being better, and the checks that actually validate a model.
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How to use Vahaduo with G25 coordinates (2026)
A step-by-step Vahaduo tutorial: where to paste your Global25 coordinates, how the Distance, Single, Multi and PCA tabs work, how to build a source panel, and how to read a fit distance without over-reading it.
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IllustrativeDNA alternatives: deep-ancestry reports and DIY qpAdm, compared
Looking for an IllustrativeDNA alternative? The real decision points — coordinate reports versus hand-checked qpAdm, subscription versus one-time, WGS input, published statistics — and which services deliver each.
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