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QUAST: Quality Assessment Tool for Genome Assemblies


QUAST evaluates genome assemblies.
It can works both with and without a given reference genome.
The tool accepts multiple assemblies, thus is suitable for comparison.


Source code


QUAST web interface

Paper at Bioinformatics journal

Paper at PubMed


Alexey Gurevich, Vladislav Saveliev, Nikolay Vyahhi and Glenn Tesler,
QUAST: quality assessment tool for genome assemblies,
Bioinformatics (2013) 29 (8): 1072-1075.
doi: 10.1093/bioinformatics/btt086
First published online: February 19, 2013 

Citation of other formats


About us:

Latest news:

  • July 7, 2015 — QUAST 3 is releasedFaster (5x–100x more running w/o reference; running in parallel with large references; new spead-up options: --no-check, --no-gc, --no-snps, --fast); Better (more accurate missasembly detection algorithm, new reports), Significantly upgraded MetaQUAST. Check out full list of changes.
  • January 17, 2014 — QUAST 2.3 is released. Now with contig alignment plots!
  • January, 2014 — The number of QUAST downloads exceeded three thousands (including more than 1000 downloads of QUAST v.2.2)!
  • April 15, 2013 — The paper was published in Bioinformatics volume 29, issue 8, pp. 1072-1075.

Please help us to make QUAST better by sending your comments, bug reports, and suggestions to


Samples of QUAST plots:


Interactive QUAST evaluation demos of single-cell E. coliH. sapiens chr. 14 , and B. impatiens (bumblebee) assemblies.