Best Free ESG Ratings Tools for Investors

Financial Modeling Prep (FMP)

DetailsVisit site

Financial Modeling Prep (FMP) is a market-data API and spreadsheet-data provider for developers, analysts, quants, and product builders who need equities, ETFs, funds, FX, crypto, commodities, macro, ESG, ownership, news, calendars, transcripts, and fundamentals from one vendor. It is strongest when you want REST and WebSocket access plus Excel and Google Sheets add-ins at a lower entry price than enterprise terminals. The main buying questions are plan limits, geography, history depth, and dataset access: the free Basic tier is a limited EOD sandbox, while real-time, global, transcript, 13F, holdings, intraday, and bulk workflows require paid tiers.

ETFdb ETF Screener

DetailsVisit site

ETFdb ETF Screener is a VettaFi ETF database and screener for U.S.-listed ETFs and ETPs, with filters for returns, flows, expenses, ESG, dividends, risk, holdings, taxes, technicals, and ratings. Use it when ETF selection needs structured screening and exportable results.

FinancialData.Net

DetailsVisit site

FinancialData.Net is an API-first financial data platform for developers, analysts, spreadsheet users, and AI-agent builders who want broad market data, fundamentals, ownership, options, funds, ESG, calendars, news, Excel access, and MCP connectivity from one provider. It is strongest when breadth matters: stocks, ETFs, mutual funds, options, futures, crypto, forex, commodities, OTC securities, indices, filings-related datasets, and institutional/insider activity can sit behind one REST API. Serious use is paid, and compliance/security claims should be verified directly because the local profile does not include public audit reports.

MarketScreener

DetailsVisit site

MarketScreener is a broad global market news and stock research portal with quotes, watchlists, screeners, charts, calendars, analyst data, company financials, transcripts, ESG ratings, insider data, newsletters, and model portfolio content. It is useful for retail investors who want one content-heavy site for daily monitoring and global stock discovery. The tradeoff is tier gating: advanced screeners, reports, portfolios, decision-support tools, and some content require paid Access, Premium, or Expert subscriptions, with pricing that can vary by region and promotion.

Ziggma

DetailsVisit site

Ziggma is a web-based portfolio tracker and investment research workspace for self-directed investors who want account consolidation, stock and ETF screening, dividend tracking, portfolio checkups, smart alerts, impact analysis, and idea lists in one place. It fits users comparing portfolio tracker and stock portfolio tracker tools, especially when they want broker-agnostic monitoring rather than a trading app. Free access covers core research with limits; paid tiers unlock more broker links, stock scores, alerts, optimizer tools, model and guru portfolios, and larger virtual-portfolio workflows. It is not a broker, registered investment advisor, tax-lot accounting system, or full global market-data terminal.

Yahoo Finance

DetailsVisit site

Yahoo Finance is the familiar free market portal for quotes, business news, watchlists, portfolios, charts, screeners, and basic company research. It works best for mainstream investors who want a quick read on markets, holdings, earnings, analyst expectations, and news without learning a specialist terminal. My Portfolio adds manual portfolios, watchlists, CSV import/export, and supported brokerage linking. Premium plans add portfolio analytics, premium research, stock ideas, screeners, historical downloads, and reduced ads, but data delays and subscription availability vary by market.

Trackinsight

DetailsVisit site

Trackinsight is a global ETF research and data platform for screening, comparing, monitoring, and analyzing ETFs and ETF portfolios. It is strongest when the job is ETF due diligence, ESG/factor context, portfolio insight, or licensed ETF data delivery, not single-stock research, options analytics, broker execution, or an unrestricted public API.