Best Arbor Alternatives in 2026
Updated
20 tools 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 Vaayu
- 7Arbor vs CarbonInk
- 8Arbor vs GreenStitch
- 9Arbor vs Hedgehog Carbon Platform
- 10Arbor vs NetNada
- 11Arbor vs Persefoni
- 12Arbor vs TrackZero
- 13Arbor vs BigMile
- 14Arbor vs CarbonAnalytics
- 15Arbor vs Carbonstop Ccloud
- 16Arbor vs 50X Impact
- 17Arbor vs ACT Group Decarbonization Platform
- 19Arbor vs CarbonSmart
- 20Arbor vs Plan A
- 21Arbor vs Normative
Arbor 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 | API, Web | ||
| 5 | EcoReko | 7.0 | Free plan | €375/mo | Web |
| 6 | Vaayu | 6.9 | Free plan | Free | API, Web |
| 7 | CarbonInk | 6.8 | Free plan | Free | Mac, Windows |
| 8 | GreenStitch | 6.8 | No | $250/mo | API, Web |
| 9 | Hedgehog Carbon Platform | 6.8 | Free plan | €100/mo | Web |
| 10 | NetNada | 6.8 | API, self-hosted, Web | ||
| 11 | Persefoni | 6.8 | Free plan | Free | API, Web |
| 12 | TrackZero | 6.8 | No | £24.58/mo | Web |
| 13 | BigMile | 6.7 | API, Web | ||
| 14 | CarbonAnalytics | 6.7 | No | £69.99/mo | API, Web |
| 15 | Carbonstop Ccloud | 6.7 | self-hosted, Web | ||
| 16 | 50X Impact | 6.6 | Web | ||
| 17 | ACT Group Decarbonization Platform | 6.6 | Web | ||
| 19 | CarbonSmart | 6.6 | API, self-hosted, Web | ||
| 20 | Plan A | 6.6 | API, Web | ||
| 21 | Normative | 6.5 | 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 7.4 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. 8 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.