Databases · comparison

MongoDB vs PostgreSQL

PostgreSQL is used on 81,008 sites, 65 times as many as MongoDB (1,238 sites).

In Databases, MongoDB ranks #7 and PostgreSQL #2 by number of sites.

From Jul 2026 to Oct 2026, MongoDB grew 0.2% and PostgreSQL grew 0.4%.

1 site runs both: less than 0.1% of MongoDB sites and less than 0.1% of PostgreSQL sites.

Mo

MongoDB

www.mongodb.org
Sites
1,238
Share of tracked sites
0.01%
Rank in Databases
#7
Change since Jul 2026
▲ +0.16%
Po

PostgreSQL

www.postgresql.org
Sites
81,008
Share of tracked sites
0.52%
Rank in Databases
#2
Change since Jul 2026
▲ +0.4%

Sites using both

1
sites run MongoDB and PostgreSQL
of MongoDB sites<0.1%
of PostgreSQL sites<0.1%

Top sites using MongoDB

No ranked site yet.

All MongoDB sites →

Often used with MongoDB

Top sites using PostgreSQL

  1. bsb.by#552,574
All PostgreSQL sites →

Often used with PostgreSQL

More Databases comparisons

Site counts and ranks come from our crawl of the web; the change compares the monthly adoption snapshots both technologies have.