Table 1. Comparison of chromatin interaction database.

Name of service	# of samples*	Hi-C heatmap	TAD annotation	Interaction table	Distance normalized interaction frequency	One-to-all interaction frequency	Dynamic browsing of visualization	Export and session management	Upload data or local installation	Data-type
3DIV	80	✓	✓	✓	✓	✓	✓	✓		Hi-C
Chrom Contact	6					✓		✓		Hi-C
HUGIN	21	✓	✓	✓	✓	✓		✓		Hi-C
3Disease browser	6	✓	✓						✓	Hi-C
Hi-View	2		✓	✓	✓	✓		✓		Hi-C
Hi-C data browser	40	✓‡				✓		✓		Hi-C, capture Hi-C, and ChIA-PET
HiGlass	34†	✓	✓¶					✓	✓	Hi-C
Juicebox	58†	✓	✓¶			✓§		✓	✓	Hi-C, capture Hi-C, and ChIA-PET
WashU epigenome browser	54†	✓						✓	✓	Hi-C, capture Hi-C, and ChIA-PET

*Number of samples refer to only Hi-C experiments and multiple replicates were counted as one.

^†HiGlass, Juicebox and WashU epigenome browser can visualize user’s own dataset.

^‡Hi-C data browser provides Hi-C heatmap on different pages.

^§Juicebox does not use pre-built one-to-all interaction data, but builds one-to-all interaction track in wiggle format on demand.

^¶HiGlass and Juicebox load TADs annotations separately from interaction frequency data.