CarbonTool

APIyesOSS—FREEyesDOCS5/5
CA7.4#2 of 29
outWeb—Windows—Mac—Linux—Android—iOS

Ranked in Carbon Accounting Software ·Free plan· paid from $166.67/mo

About

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 through one data backbone. Data can be entered manually or imported through Excel or CSV, AI uploads, APIs, or SAF-T. More than 200 built-in emission-source templates include methodology, units, and factors; listed factor databases include DEFRA, EPA, ecoinvent, and ADEME. Organizations can track subsidiaries, sites, or business units separately, then 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, emission factor, and quality level. The free Starter plan covers Scope 1 and 2; paid plans cover Scope 3 across the 15 GHG Protocol categories. Starter access lasts 30 days without a credit card or automatic charge, and trial data is retained for 90 days after access lapses. Paid plans start at €2,000 per year.

Who it is for

CarbonTool suits organizations that need emissions measurement and reporting across entities, including companies working with the listed reporting frameworks. Its plan descriptions position Core for single-entity companies, Pro for multi-entity SMEs or supply-chain focus, and Enterprise for large CSRD-obligated organizations.

What is good

  • Supports CSRD, VSME, GRI, CDP, and ISSB reporting
  • Includes over 200 emission-source templates
  • Tracks entities separately and consolidates group inventories
  • Provides API connections and an audit trail

What to know first

  • Free Starter covers only Scope 1 and 2
  • Paid plans start at €2,000 per year
  • MCP server access is on request

Verdict

CarbonTool combines emissions data collection, framework reporting, and multi-entity tracking, with API options and a recorded audit trail. Starter is limited to Scope 1 and 2; full Scope 3 coverage is in paid plans.

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

Company

Headquarters
Bucharest, Romaniacarbontool.com · 28 Sept 2026

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