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Primer-BLAST

Primer design with a specificity check against a whole genome.

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Primer-BLAST

NCBI · ncbi.nlm.nih.gov

Does
Primer design with a specificity check against a whole genome.
Access
Free

Use this when

Any primer that will run against complex template — genomic DNA, cDNA from a whole transcriptome. Slower than Primer3 alone, and worth it.

Open Primer-BLAST

External tool. We link, we don’t host — nothing you enter on Biology 101 reaches them.

About this tool

Wraps Primer3 and then BLASTs each candidate pair against a chosen database to flag off-target amplification.

Science last reviewed .