OpenCart vs TaxJar

OpenCart (PHP based open source ecommerce platform) and TaxJar (Making sales tax filing easier for more than 20,000 online sellers and merchants across the world.) both appear on the Smoower Developer Ecosystem Index.

OpenCart (rank #401) holds a modest lead over TaxJar (rank #693) on the overall Smoower ecosystem score (41 vs 31). The gap of 10 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), TaxJar is clearly ahead of OpenCart. On community (issue response, PR reviews and discussion health), OpenCart is clearly ahead of TaxJar. On reach (how visible the ecosystem is beyond its own repos), OpenCart is clearly ahead of TaxJar. On momentum (release cadence and how fast the ecosystem moves), TaxJar is slightly ahead of OpenCart.

OpenCart carries 8,157 GitHub stars across 2 public repos, with 1 repositories active in the last 90 days and 26 external contributors on record. TaxJar shows 490 stars across 39 public repos, 1 active in the last 90 days and 3 external contributors. The star gap on its own does not decide the comparison, but OpenCart's footprint is roughly 16.6x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

OpenCart is the stronger read for anyone weighting reach. TaxJar looks better where code quality is the deciding factor. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.