Split FASTA

Split FASTA divides FASTA sequence records into smaller FASTA sequences of the size you specify. An optional overlap value can be used to create sequences that overlap.

Paste the FASTA sequences into the text area below. Input limit is 500000 characters.

>random_sequence_1000_bases
gtttcaaactgtccaggtctaatggtgtgaagcgatactgtttgatgcctggttggtgca
actggcggcaaaacggcttaaagctccagatgccacattagtgaggacctggtgtattac
gttggattaccctgtgacagctcaggcacacaccaggattaggaaattagcatcgtaaga
ctagtccgtacaaacaaaaacaaaaaatagaagtttcaagtggttcccgttgttggagcg
cgtaagggatacgtaataataggtcaggtcagaaagaagcggcttggagccccatttata
tctttaacatcgggagaatcatccgtcgaccttgtggcacggtttgccggcgcgaatagg
gtggacgtagatattagacggagacggttgaagcttacctcgtagctgggaactctatgg
agtggctaccctatggacttcctccggcagcgcaggtttcaaaatgagcaatcagcaatt
cctaggatgaagccgcgagctaaaaacttcagcgcttccgcatgcgttactgtcctggag
agttttaatcgggtgtctgtcacacacctcggatctcgcccactgcgtgagccttagata
cgcagtgatgcaatggatgtaggtctctagcgaagccaagtctagtcgcgcctccgcgcg
caagtctgcgataatgggcaagtgcctgcagtctaagtataactcgtcgccagatgcggc
ataggattatgagcgtttcccctgcgcgttatggtacccggaccgggcccgcgacacacg
gtgcacaggtagagctagttaggcgtaacgacgccagaattatgtttattatttacctgt
gacgcaagctaacagtagtgccccggggtgctagtaagtaagcagagaactgggatgtag
ccgtcaaaggtcttttgccgagatgactactacaaccgtatagacaaagcgtgcacatta
catggggagtacctacttccagaacctgtgtcttcctagt

The new sequences should be bases long.
The new sequences should overlap by bases.

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