17.0
Carbonfact is an environmental data platform for apparel and footwear companies, covering carbon accounting, product life-cycle assessments,…
Free planWebAPI
Best Carbon Accounting Software in 2026
Tracking emissions calls for tools that can organize data and support the accounting work around it. Compare data collection, emissions factors, and scope coverage to understand what each option addresses. Carbonfact, CarbonTool, and Greenio are among the software names to weigh against your requirements. Audit trails and API access may matter for recordkeeping or connections to other systems, while supplier…
26.9
NetNada is an AI-powered carbon accounting and sustainability reporting platform for businesses, presented for Australian companies handling mandatory climate disclosure.
WebAPISelf-hosted
36.7
CarbonTool is a carbon accounting and sustainability platform for measuring, reporting, and reducing Scope 1, 2, and 3 emissions.
Free planWebAPI
- 4
ClimateTracker
ClimateTracker is a web platform for climate disclosure reporting, sustainability records management and sustainability analysis.
Web6.6From $1,000 a month - 5
EcoReko
EcoReko is web-based carbon accounting software for SMEs, helping track Scope 1, 2, and 3 emissions and manage supplier data.
Free planWeb6.6From €4,500 a year - 6
Greenio
Greenio provides carbon accounting software for Indian companies, with tracking for Scope 1, 2 and 3 emissions and reporting for BRSR, ESG and CCTS needs.
Free planWebAPI6.6From ₹2,999 a month - 7
Hedgehog Carbon Platform
Hedgehog Carbon Platform is web software for organizations calculating their business carbon footprint and preparing reports.
Free planWeb6.6From €100 a month - 8
GreenStitch
GreenStitch is paid climate and sustainability software for fashion and lifestyle brands, retailers, and manufacturers.
WebAPI6.4From $3,000 a year - 9
Persefoni
Persefoni provides software for organizations to measure, report, and reduce their carbon footprints and manage sustainability disclosures.
Free planWebAPI6.4Free plan - 10
CarbonChain
CarbonChain helps commodity traders, manufacturers and banks account for emissions tied to making, shipping and using commodities and products.
WebAPI6.3 - 11
TrackZero
Web6.3From £295 a year - 12
Vaayu
Vaayu is web- and API-based carbon-management software for retail brands and other businesses.
Free planWebAPI6.3Free plan - 13
CarbonAnalytics
CarbonAnalytics is carbon accounting software for organizations measuring, managing, and reducing greenhouse gas emissions.
WebAPI6.2From £69.99 a month - 14
CO2 AI
CO2 AI is a sustainability platform for large organizations that measures, reduces, and reports corporate, product, and supply-chain emissions.
WebAPI6.2 - 15
Arbor
Arbor is a carbon accounting platform for companies measuring product, company-asset, and organizational emissions.
WebAPI6.1 - 16
Karbon360
Web5.9From €59.99 a month - 17
5.8From $390 a month - 18
CarbonInk
CarbonInk is a free, open-source desktop tool for greenhouse-gas accounting on macOS and Windows.
Free planmacOSWindows5.8Free plan - 19
Carbonstop Ccloud
Carbonstop Ccloud is an enterprise carbon management platform for tracking and managing emissions across operations, global supply chains, and products.
WebSelf-hosted5.8 - 20
BigMile
BigMile calculates and reports carbon emissions linked to multimodal transport, with tools for logistics data imports, analysis, and reporting.
WebAPI5.7 - 21
Plan A
Plan A is a corporate carbon accounting platform for businesses measuring, reporting, and reducing emissions across Scopes 1, 2, and 3.
WebAPI5.7 - 22
Sweep
Web5.7 - 23
50X Impact
50X Impact is a web-based sustainability intelligence platform for sports organisations, venues, and events.
Web5.6 - 24
Watershed
WebAPI5.6 - 25
5.5