CarbonTool

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Score6.9

Rank#2 of 29

From$166.67/mo

Free planYes

Free trialYes

Runs onAPI, Web

Summary

CarbonTool is a carbon accounting and sustainability platform for measuring, reporting, and reducing Scope 1, 2, and 3 emissions. It supports reporting for CSRD, VSME, GRI, CDP, and ISSB using one data backbone. Data can be entered manually or brought in through Excel or CSV, AI uploads, API connections, and SAF-T imports. More than 200 built-in emission-source templates include methodology, units, and emission factors; listed factor databases include DEFRA, EPA, ecoinvent, and ADEME. Organizations can track subsidiaries, sites, or business units separately and consolidate them into a group inventory. The platform supports reduction targets and scenario planning that compares impact, cost, and return. Its audit trail records each data point’s source, unit, factor, and quality level. The free Starter plan covers Scope 1 and 2, while paid plans add Scope 3 across the 15 GHG Protocol categories. Starter access lasts 30 days without a credit card or auto-charge; trial data is retained for 90 days after lapse. Paid plans start at €2,000 per year.

Who it is for

CarbonTool suits companies measuring and reporting emissions, from single-entity organizations to enterprises with multiple units. Its stated plan positioning includes SMEs with multiple entities or supply-chain focus and large CSRD-obligated organizations.

What is good

Supports reporting for CSRD, VSME, GRI, CDP, and ISSB
Includes more than 200 emission-source templates
Tracks and consolidates multiple entities
Starter trial needs no credit card and has no auto-charge

What to know first

Free Starter covers only Scope 1 and 2
Paid plans start at €2,000 per year
Trial data is retained for 90 days after access lapses

Verdict

CarbonTool combines emissions measurement, reporting, entity consolidation, and reduction planning. The free Starter is limited to Scope 1 and 2, while paid plans start at €2,000 per year and include Scope 3 coverage.

CarbonTool plans and pricing

All plans

Starter Free Free · 30 days full access · Scope 1+2 core measurement · no credit card required carbontool.com · 3 Oct 2026

Core $2,000/yr 2,000€/ year Single entity measurement · full platform access · 2h monthly support included carbontool.com · 3 Oct 2026

Pro $5,000/yr 5,000€/ year Multi-unit + consolidation · VSME reporting included · 4h monthly support included carbontool.com · 3 Oct 2026

Enterprise $7,500/yr 7,500€/ year Large organizations, multi-unit · CSRD reporting included · 6h monthly support + priority carbontool.com · 3 Oct 2026

Compared on carbon accounting software

Free plan: Nocarbontool.com
Scope coverage: scope 1-3carbontool.com
Data collection: bothcarbontool.com
Emissions factors: bothcarbontool.com
Supplier engagement: Yescarbontool.com
Audit trail: Yescarbontool.com
API access: Yescarbontool.com

Facts

Purpose: CarbonTool is a carbon accounting and sustainability platform for measuring, reporting and reducing Scope 1, 2 and 3 emissions.carbontool.com · 3 Oct 2026
Reporting frameworks: Its website says one data backbone supports reporting for CSRD, VSME, GRI, CDP and ISSB.carbontool.com · 3 Oct 2026
Templates: The platform offers 200+ built-in emission-source templates with methodology, measurement units and emission factors.carbontool.com · 3 Oct 2026
Emission factors: CarbonTool lists DEFRA, EPA, ecoinvent and ADEME as included emission-factor databases.carbontool.com · 3 Oct 2026
Data imports: The site lists manual entry, Excel/CSV, AI uploads, API connections and SAF-T import as ways to bring in emissions data.carbontool.com · 3 Oct 2026
Multi-entity: CarbonTool supports tracking subsidiaries, sites or business units separately and consolidating them into a group inventory.carbontool.com · 3 Oct 2026
Decarbonisation: The platform supports reduction targets and describes scenario planning with impact, cost and return comparisons.carbontool.com · 3 Oct 2026
Free plan limit: The free Starter covers Scope 1 and 2; all paid plans include full Scope 3 coverage across the 15 GHG Protocol categories.carbontool.com · 3 Oct 2026
Trial terms: Starter access lasts 30 days without a credit card, has no auto-charge, and trial data is retained for 90 days after lapse.carbontool.com · 3 Oct 2026
Integration options: CarbonTool says customers can connect systems through an API or MCP; its pricing page says MCP server access is on request.carbontool.com · 3 Oct 2026
Security and residency: The pricing page says CarbonTool is built and hosted in the EU and that emissions data stays on EU infrastructure under EU data protection law.carbontool.com · 3 Oct 2026
Support: The pricing page lists monthly support of 2 hours for Core, 4 for Pro, and 6 hours plus priority for Enterprise.carbontool.com · 3 Oct 2026
Intended customers: The site positions Core for single-entity companies, Pro for SMEs with multiple entities or supply-chain focus, and Enterprise for large CSRD-obligated organizations.carbontool.com · 3 Oct 2026