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DNA ↔ RNA converter
Convert a DNA sequence to RNA, or an RNA sequence back to DNA, with one click. The tool detects which you pasted and shows both forms, cleaned and ready to paste into your next step.
0 bases · Spaces, line numbers and FASTA headers are removed automatically.
RNA form (U)
DNA form (T)
Good to know
One letter makes the difference
RNA uses uracil (U) where DNA uses thymine (T); the other three bases are identical. Converting U back to T gives you the coding-DNA equivalent of an mRNA — useful when you move between a transcript and its gene.