ZeroGate

A web-based tool that merges CSV files by matching rows based on user-selected columns, solving the problem of combining data when spreadsheet software fails. It targets data analysts, developers, and business users who need to merge datasets without complex formulas or coding. The service is delivered as a free, no-sign-up web application that processes data in temporary server memory, ensuring privacy and immediate deletion after the session.

Key features

• Deterministic, rule-based matching
• Instant preview interface
• No AI hallucinations
• No disk storage, data in RAM
• No sign-up required
• Match 20,000 rows free
• Upload up to 3MB per file
• Select key columns from each CSV
• Review and fix row conflicts
• Download merged results