Best CSV Tools in 2026

Clean messy CSV files in seconds.

Key CSV Cleaner features:

CSV Upload Instant Data Preview Duplicate Removal Trim Whitespace

freemium $4 / One-off (Unlimited Day Pass)

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 / Monthly (Per Editor, Unlimited Viewers) Sponsored

A CSV editor/viewer.

Key Modern CSV features:

Fast Loading and Editing Multi-Cell Editing Advanced Navigation Customizable Interface

freemium $39 / One-off (Valid for the current major version - v2)

The ultimate CSV Editor. Import, tweak, fix, analyse and convert.

Key Csv Easy features:

User-friendly Interface Quick Data Processing Compatibility Cloud-based Access

Explore Spreadsheets with Millions of Rows.

Key CSV Explorer features:

User-Friendly Interface Data Visualization Quick Data Processing Cloud-Based

Microsoft Office Excel is a commercial spreadsheet application.

Key Microsoft Office Excel features:

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

Upload messy CSV or Excel files, detect duplicates, missing values, date issues, and export clean results online.

Key CleanCSV AI features:

AI-Powered Data Cleaning Easy to Use Time-Saving No Software Installation Required

The new standard for data import.

Key Flatfile features:

User-friendly Interface Automated Data Cleaning Customizable Workflows Integration Capabilities

Automatically clean customer data with a few clicks.

Key Clean Spreadsheets features:

User-Friendly Interface Integration Capabilities Data Cleaning Features Automation Options

Synchronizing, online-based word processor, part of Google Drive.

Key Google Sheets features:

Accessibility Collaboration Integrations Cost

CSV Buddy helps you make your CSV files ready to be imported by a variety of software.

Key CSV Buddy features:

User-Friendly Interface Free to Use Lightweight No Installation Required

Free Windows tool to convert CSV to JSON, SQL, VCF/vCard, and Excel XLSX. Split large CSV files, batch convert, auto-detect separators, and export contacts for MySQL, PostgreSQL, Google Contacts, and Outlook.

Key CSV2All features:

Multiple Output Formats Batch Processing Simple Interface Customizable Output

Premium online PDF tool set.

Key iLovePDF features:

User-Friendly Interface Wide Range of Tools Free Version Available Cloud Integration

neatcsv gives you 14+ data cleaning tools that run 100% in your browser. Remove duplicates, fix dates, validate emails, normalize numbers — no uploads, no server, fully GDPR compliant. Export as CSV, Excel or JSON.

Key neatcsv features:

Ease of Use Performance Flexibility Minimal Dependencies