Best CarbonTool Alternatives in 2026
Updated
20 apps from carbon accounting software ranked against CarbonTool on the same published basis.
- 1CarbonTool vs Carbonfact
- 3CarbonTool vs Greenio
- 4CarbonTool vs Persefoni
- 5CarbonTool vs CO2 AI
- 6CarbonTool vs CarbonInk
- 7CarbonTool vs 50X Impact
- 8CarbonTool vs ACT Group Decarbonization Platform
- 9CarbonTool vs Arbor
- 10CarbonTool vs CarbonSmart
- 11CarbonTool vs Carbonstop Ccloud
- 12CarbonTool vs EcoReko
- 13CarbonTool vs Hedgehog Carbon Platform
- 14CarbonTool vs Normative
- 15CarbonTool vs Plan A
- 16CarbonTool vs scoped
- 17CarbonTool vs SINAI Technologies
- 18CarbonTool vs Sweep
- 19CarbonTool vs Vaayu
- 20CarbonTool vs Watershed
- 21CarbonTool vs BigMile
CarbonTool alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Carbonfact | 6.4 | Free plan | Free | API, Web |
| 3 | Greenio | 6.4 | Free plan | ₹2,999/mo | API, Web |
| 4 | Persefoni | 6.4 | Free plan | Free | API, Web |
| 5 | CO2 AI | 5.5 | No | — | API, Web |
| 6 | CarbonInk | 5.3 | No | — | Windows, Mac |
| 7 | 50X Impact | 5.2 | No | — | Web |
| 8 | ACT Group Decarbonization Platform | 5.2 | No | — | Web |
| 9 | Arbor | 5.2 | No | — | Web |
| 10 | CarbonSmart | 5.2 | No | — | Web |
| 11 | Carbonstop Ccloud | 5.2 | No | — | Web |
| 12 | EcoReko | 5.2 | No | — | Web |
| 13 | Hedgehog Carbon Platform | 5.2 | No | — | Web |
| 14 | Normative | 5.2 | No | — | Web |
| 15 | Plan A | 5.2 | No | — | Web |
| 16 | scoped | 5.2 | No | — | Web |
| 17 | SINAI Technologies | 5.2 | No | — | Web |
| 18 | Sweep | 5.2 | No | — | Web |
| 19 | Vaayu | 5.2 | No | — | Web |
| 20 | Watershed | 5.2 | No | — | Web |
| 21 | BigMile | 5.0 | No | — | API, Web |
Make your app an alternative to CarbonTool
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about CarbonTool alternatives
What is the best alternative to CarbonTool?
Carbonfact, number 1 in carbon accounting software with a score of 6.4 out of 10. The others here: Greenio, Persefoni, CO2 AI and 16 more.
What is the best free alternative to CarbonTool?
Carbonfact is the best-ranked alternative with a free plan. 3 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.