Best Spreadsheet Tools in 2026

Turn messy CSVs into the format you need. Upload supplier lists, bank exports, or client spreadsheets and get back trimmed values, consistent number and date formats, and no blank rows — free, no install required.

Key RowLoom features:

Spreadsheet-like data management Collaboration features Customizable data structures Automation capabilities

Do-It-Yourself Data Analytics & Business Intelligence, Powered by AI.

Key Grapple features:

Automatic Data Refresh Universal Data Library Natural Language Map Data

Visit website freemium $99.0 / Monthly (Per Editor, Unlimited Viewers)

Find value, formula, worksheet, and hidden-content changes between two XLSX files. Files stay in your browser.

Key WorkbookDiff features:

Purpose-Built for Excel Comparison Time-Saving for Auditors and Analysts Detects Formula Changes Web-Based Accessibility

Clean and validate spreadsheets — CPF/CNPJ, phone, and email — in one click.

Key Zolyx.com.br features:

Presença Digital Estabelecida Interface em Português Foco no Mercado Local Possível Variedade de Produtos/Serviços

paid Free Trial $9.79 / Monthly (R$49.90/mo BRL — price shown in local currency on site)

Turn Google Sheets rows into Google Calendar events, with a preview before every sync.

Key Calendar Sync for Sheets features:

Automated syncing Real-time updates Useful for reporting and analysis Simple integration with Google Workspace

Microsoft Office Excel is a commercial spreadsheet application.

Key Microsoft Office Excel features:

Comprehensive Features User-Friendly Interface High Compatibility Strong Community and Support

Diff Checker is a free online diff tool that quickly and easily gives you the text differences...

Key Diff Checker features:

User-Friendly Interface Multiple Format Support Real-time Comparison Web and Desktop Versions

Data cleansing software with a bureau service for verifying, correcting and enhancing both consumer and business data.

Key WinPure features:

User-Friendly Interface Comprehensive Data Cleansing Data Matching Capabilities Scalability

Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.

Key Zapier features:

Ease of Use Wide Range of Integrations Custom Automation Scalability

Beyond Compare allows you to compare files and folders.

Key Beyond Compare features:

Comprehensive Comparison Capabilities Three-Way Merge Customizable Rules Intuitive User Interface

Excel Compare is a compare tool allows you to compare Excel files and Excel sheets.

Key Excel Compare features:

Automated Comparison Detailed Differences Highlighting User-Friendly Interface Batch Processing

Google Calendar Repair, Editing & Maintenance: Delete Duplicates, multiple edit and delete, search/replace, undo failed import and sync and more!

Key GCalToolKit features:

Comprehensive Calendar Management Customization Efficiency Integration

This tool allows a simple comparison of two Excel Sheets or Workbooks.

Key Excel Sheet Comparator features:

User-Friendly Interface Feature-Rich Efficiency Compatibility

Clean messy CSV files in seconds.

Key CSV Cleaner features:

CSV Upload Instant Data Preview Duplicate Removal Trim Whitespace

freemium $4.0 / One-off (Unlimited Day Pass)