Table 1.

Comparison of resources for searching and visualizing viral sequences. indicates that the resource presents the full functionality; else, we briefly indicate in which way the functionality is limited. For example – for CoVariants – aa/VoI in ‘amino acid analysis’ means that it is available only for particular amino acid changes and Variants of Interest (or notable variants); country in ‘define populations by metadata’ means that it may be performed using only country as a filter

		CoV-GLUE	2019nCoVR	CoVMT	GESS	coronApp	Pango lineagesa	CoVariantsb	hcov19 variantsc	cov.lanld	outbreak infoe	CoV Geneticsf	VirusViz
	Features	(9)	(10)	(11)	(12)	(13)							-
input	process user-input FASTA			-	-		-	-	-		-	-
	process user-input metadata	-	-	-	-	-	-	-	-	-	-	-
	support other viruses	-	-	-	-	-	-	-	-	-	-	-
annotation	driven by nuc/aa/variant	aa	aa	aa	nuc	nuc+aa	var	var	var	aa	aa+var	aa	nuc+aa
	nucleotide analysis						-	-	-		-	-
	amino acid analysis						VoI	aa/VoI	VoI
	co-occurrence analysis	-	-	-		-	-	aa/VoI
	integrate ext. knowledge	-	-	-	-	-	-		-	-		-
design	define populations by metadata	-	country	-	-	-	-	country	-	-	country	country
	define populations by mut/var	-	nuc	-	-	-	VoI	aa/VoI	-	-	aa/VoI	Spike aa
analysis	mutations on genome	-				top 10	-	-	-		-
	mut/var through time	-			-	-	-			-			-
	comparison of distributions	-	-	-	-	-	-		-	-	-	-

Some resources do not have a related publication, their links are: ^ahttps://cov-lineages.org/; ^bhttp://covariants.org/; ^chttps://www.gisaid.org/hcov19-variants/; ^dhttps://cov.lanl.gov/; ^ehttps://outbreak.info/; ^fhttps://covidcg.org/.