Best Arbor Alternatives in 2026
Updated
20 platforms from carbon accounting software ranked against Arbor on the same published basis.
- 1Arbor vs CarbonTool
- 2Arbor vs Greenio
- 3Arbor vs Carbonfact
- 4Arbor vs CO2 AI
- 5Arbor vs EcoReko
- 6Arbor vs GreenStitch
- 7Arbor vs Hedgehog Carbon Platform
- 8Arbor vs Persefoni
- 9Arbor vs TrackZero
- 10Arbor vs BigMile
- 11Arbor vs CarbonAnalytics
- 12Arbor vs CarbonInk
- 13Arbor vs NetNada
- 14Arbor vs 50X Impact
- 15Arbor vs ACT Group Decarbonization Platform
- 17Arbor vs CarbonSmart
- 18Arbor vs Normative
- 19Arbor vs Plan A
- 20Arbor vs Sweep
- 21Arbor vs Carbonstop Ccloud
Arbor alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | CarbonTool | 7.7 | Free plan | $166.67/mo | API, Web |
| 2 | Greenio | 7.6 | Free plan | ₹2,999/mo | API, Web |
| 3 | Carbonfact | 7.1 | Free plan | Free | API, Web |
| 4 | CO2 AI | 7.1 | API, Web | ||
| 5 | EcoReko | 7.1 | Free plan | €375/mo | Web |
| 6 | GreenStitch | 6.8 | No | $250/mo | API, Web |
| 7 | Hedgehog Carbon Platform | 6.8 | Free plan | €100/mo | Web |
| 8 | Persefoni | 6.8 | Free plan | Free | API, Web |
| 9 | TrackZero | 6.8 | No | £24.58/mo | Web |
| 10 | BigMile | 6.7 | API, Web | ||
| 11 | CarbonAnalytics | 6.7 | No | £69.99/mo | API, Web |
| 12 | CarbonInk | 6.7 | Free plan | Free | Mac, Windows |
| 13 | NetNada | 6.7 | API, self-hosted, Web | ||
| 14 | 50X Impact | 6.5 | Web | ||
| 15 | ACT Group Decarbonization Platform | 6.4 | Web | ||
| 17 | CarbonSmart | 6.4 | API, self-hosted, Web | ||
| 18 | Normative | 6.4 | Web | ||
| 19 | Plan A | 6.4 | API, Web | ||
| 20 | Sweep | 6.4 | Web | ||
| 21 | Carbonstop Ccloud | 6.3 | self-hosted, Web |
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Questions about Arbor alternatives
What is the best alternative to Arbor?
CarbonTool, number 1 in carbon accounting software with a score of 7.7 out of 10. The others here: Greenio, Carbonfact, CO2 AI and 16 more.
What is the best free alternative to Arbor?
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 how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.