Heap vs TaxJar

Heap (Product Insights) 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.

Heap (rank #567) holds a narrow lead over TaxJar (rank #696) on the overall Smoower ecosystem score (35 vs 31). The gap of 4 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 Heap. On education (docs, guides and learning material for developers), Heap is slightly ahead of TaxJar. On community (issue response, PR reviews and discussion health), TaxJar is slightly ahead of Heap. On reach (how visible the ecosystem is beyond its own repos), Heap is clearly ahead of TaxJar. On momentum (release cadence and how fast the ecosystem moves), TaxJar is ahead of Heap.

Heap carries 215 GitHub stars across 65 public repos, with 6 repositories active in the last 90 days and 0 external contributors on record. TaxJar shows 491 stars across 39 public repos, 1 active in the last 90 days and 2 external contributors.

Heap 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.