Sequence data
FASTQ mate-ID comparison
Compare read identifiers at matching positions and list missing or repeated IDs.
Your inputs
Start with an exampleYour result
Example resultAa — A small example of your colors.
How it works
Compare the first header token after removing only a terminal /1 or /2. Check mate labels when present and preserve positional differences and duplicate IDs.
The sample’s a/1–a/2 and b/1–b/2 records produce two matching positions.
Limits
Small uncompressed four-line FASTQ inputs, at most 20000 records each. Wrapped sequences, gzip and automatic pairing/reordering are excluded. Quality lengths are checked; scores and biological sequences are not interpreted.