How it works
- 1Paste the requested sequence data or numeric input.
- 2Adjust the available options and run the analysis.
- 3Review, copy or download the results for your workflow.
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BROWSER · Toolardo local JavaScript
I need to calculate Assembly N50/N75
Assembly N50/N75 Calculator
Calculate N50, N75, L50, L75 and summary statistics from FASTA contigs or a list of contig lengths.
✓ Runs locally in your browser✓ No account required✓ No sequence data upload
✓ The calculation runs locally in your browser; sequence data is not uploaded.
Paste FASTA contigs or positive contig lengths separated by spaces, commas or new lines.
Count—
Total length—
Minimum—
Maximum—
Mean—
N50—
L50—
N75—
L75—
About this tool
Calculate N50, N75, L50, L75 and summary statistics from FASTA contigs or a list of contig lengths. The calculation runs locally in your browser; sequence data is not uploaded.
Common uses
assembly N50 calculatorN75 calculatorL50 L75FASTA assembly statistics
Frequently asked questions
Does this tool upload my sequence data?
No. The analysis runs locally in your browser.
Can I use the result in research?
Use it for rapid analysis and screening. Verify critical results with your established workflow.