Window Extractor DNA

DNA sequences

Window sizeStep

Output

How to extract sliding windows from DNA

Paste a DNA sequence, as plain text or FASTA.
Set the window size and the step between the start of one window and the next.
Each window becomes a FASTA record with its position in the title.

Frequently asked questions

What step should I use?

A step equal to the window size gives windows that touch without overlapping. A smaller step makes them overlap; a step of 1 gives every possible window.

Is my sequence uploaded?

No. Everything runs in your browser, so your sequences never leave your device.

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