Best CarbonSmart Alternatives in 2026
Updated
20 tools from carbon accounting software ranked against CarbonSmart on the same published basis.
- 1CarbonSmart vs CarbonTool
- 2CarbonSmart vs Greenio
- 3CarbonSmart vs Carbonfact
- 4CarbonSmart vs CO2 AI
- 5CarbonSmart vs EcoReko
- 6CarbonSmart vs CarbonInk
- 7CarbonSmart vs GreenStitch
- 8CarbonSmart vs Hedgehog Carbon Platform
- 9CarbonSmart vs NetNada
- 10CarbonSmart vs Persefoni
- 11CarbonSmart vs TrackZero
- 12CarbonSmart vs BigMile
- 13CarbonSmart vs CarbonAnalytics
- 14CarbonSmart vs ACT Group Decarbonization Platform
- 16CarbonSmart vs Plan A
- 17CarbonSmart vs Normative
- 18CarbonSmart vs Sweep
- 19CarbonSmart vs Carbon Accounting AI
- 20CarbonSmart vs CarbonChain
- 21CarbonSmart vs SINAI Technologies
CarbonSmart alternatives compared
| # | Tool | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | CarbonTool | 7.4 | Free plan | $166.67/mo | API, Web |
| 2 | Greenio | 7.3 | Free plan | ₹2,999/mo | API, Web |
| 3 | Carbonfact | 7.1 | Free plan | Free | API, Web |
| 4 | CO2 AI | 7.0 | No | — | API, Web |
| 5 | EcoReko | 7.0 | Free plan | €375/mo | Web |
| 6 | CarbonInk | 6.8 | Free plan | Free | Mac, Windows |
| 7 | GreenStitch | 6.8 | No | $250/mo | API, Web |
| 8 | Hedgehog Carbon Platform | 6.8 | Free plan | €100/mo | Web |
| 9 | NetNada | 6.8 | No | — | API, self-hosted, Web |
| 10 | Persefoni | 6.8 | Free plan | Free | API, Web |
| 11 | TrackZero | 6.8 | No | £24.58/mo | Web |
| 12 | BigMile | 6.7 | No | — | API, Web |
| 13 | CarbonAnalytics | 6.7 | No | £69.99/mo | API, Web |
| 14 | ACT Group Decarbonization Platform | 6.6 | No | — | Web |
| 16 | Plan A | 6.6 | No | — | API, Web |
| 17 | Normative | 6.5 | No | — | Web |
| 18 | Sweep | 6.5 | No | — | Web |
| 19 | Carbon Accounting AI | 6.4 | No | $390/mo | Web |
| 20 | CarbonChain | 6.3 | No | — | API, Web |
| 21 | SINAI Technologies | 6.0 | No | — | API, Web |
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Questions about CarbonSmart alternatives
What is the best alternative to CarbonSmart?
CarbonTool, number 1 in carbon accounting software with a score of 7.4 out of 10. The others here: Greenio, Carbonfact, CO2 AI and 16 more.
What is the best free alternative to CarbonSmart?
CarbonTool is the best-ranked alternative with a free plan. 7 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.