Making sales tax filing easier for more than 20,000 online sellers and merchants across the world.
Formspark vs TaxJar
Developer ecosystem comparison across GitHub activity, SDKs, documentation, community, reach and momentum.
Formspark 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.
Formspark (rank #372) holds a modest lead over TaxJar (rank #693) on the overall Smoower ecosystem score (42 vs 31). The gap of 11 points reflects composite signals across code, docs, community and reach.
On code quality (the state of repositories, tests, releases and polish), TaxJar is slightly ahead of Formspark. On education (docs, guides and learning material for developers), TaxJar is slightly ahead of Formspark. On community (issue response, PR reviews and discussion health), Formspark is ahead of TaxJar. On reach (how visible the ecosystem is beyond its own repos), TaxJar is slightly ahead of Formspark. On momentum (release cadence and how fast the ecosystem moves), Formspark is ahead of TaxJar.
Formspark carries 67 GitHub stars across 8 public repos, with 8 repositories active in the last 90 days and 2 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 TaxJar's footprint is roughly 7.3x larger, which usually shows up in downstream signals like inbound issues and third party integrations.
Formspark is the stronger read for anyone weighting momentum. 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.
Side-by-side metrics
| Metric | Formspark | TaxJar |
|---|---|---|
| Ranking | ||
| Overall rank | #372 | #693 |
| Pillars | ||
| Overall | 42 | 31 |
| Code | 59 | 63 |
| Education | 68 | 71 |
| Community | 31 | 18 |
| Reach | 0 | 1 |
| Momentum | 48 | 30 |
| Builder experience | 0 | 0 |
| Signals | ||
| Stars | 67 | 490 |
| Forks | 93 | 279 |
| Public repos | 8 | 39 |
| Active repos (90d) | 8 | 1 |
| External contributors | 2 | 3 |
| Avg polish | 53 | 61 |
| Avg AI-readiness | 35 | 41 |