Best 50X Impact Alternatives in 2026
Updated
20 platforms from carbon accounting software ranked against 50X Impact on the same published basis.
- 150X Impact vs Carbonfact
- 250X Impact vs CarbonTool
- 350X Impact vs Greenio
- 450X Impact vs Persefoni
- 550X Impact vs CO2 AI
- 650X Impact vs Plan A
- 750X Impact vs CarbonAnalytics
- 850X Impact vs BigMile
- 950X Impact vs CarbonChain
- 1050X Impact vs Normative
- 1150X Impact vs ACT Group Decarbonization Platform
- 1250X Impact vs CarbonSmart
- 1350X Impact vs Carbonstop Ccloud
- 1450X Impact vs EcoReko
- 1550X Impact vs Hedgehog Carbon Platform
- 1650X Impact vs SINAI Technologies
- 1750X Impact vs Sweep
- 1850X Impact vs Vaayu
- 1950X Impact vs Watershed
- 2150X Impact vs Arbor
50X Impact alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Carbonfact | 7.4 | Free plan | Free | API, Web |
| 2 | CarbonTool | 7.4 | Free plan | $166.67/mo | API, Web |
| 3 | Greenio | 7.3 | Free plan | ₹2,999/mo | API, Web |
| 4 | Persefoni | 7.3 | Free plan | Free | API, Web |
| 5 | CO2 AI | 7.0 | No | — | API, Web |
| 6 | Plan A | 6.9 | No | — | API, Web |
| 7 | CarbonAnalytics | 6.8 | No | £69.99/mo | API, Web |
| 8 | BigMile | 6.7 | No | — | API, Web |
| 9 | CarbonChain | 6.7 | No | — | API, Web |
| 10 | Normative | 5.5 | No | — | Web |
| 11 | ACT Group Decarbonization Platform | 5.2 | No | — | Web |
| 12 | CarbonSmart | 5.2 | No | — | Web |
| 13 | Carbonstop Ccloud | 5.2 | No | — | Web |
| 14 | EcoReko | 5.2 | Free plan | €375/mo | Web |
| 15 | Hedgehog Carbon Platform | 5.2 | No | — | Web |
| 16 | SINAI Technologies | 5.2 | No | — | Web |
| 17 | Sweep | 5.2 | No | — | Web |
| 18 | Vaayu | 5.2 | No | — | Web |
| 19 | Watershed | 5.2 | No | — | Web |
| 21 | Arbor | 5.1 | No | — | Web |
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Questions about 50X Impact alternatives
What is the best alternative to 50X Impact?
Carbonfact, number 1 in carbon accounting software with a score of 7.4 out of 10. The others here: CarbonTool, Greenio, Persefoni and 16 more.
What is the best free alternative to 50X Impact?
Carbonfact is the best-ranked alternative with a free plan. 5 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, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.