About CSV Repair Toolkit
We built CSV Repair Toolkit because dealing with broken, malformed, or mis-encoded CSV files is one of the most frustrating and time-consuming tasks in everyday data work — and every existing solution was either too expensive, too complicated, or required uploading sensitive data to an untrusted third party.
Our goal is simple: give data professionals, developers, analysts, and everyday users a fast, free, and private set of tools that actually work on real-world CSV problems.
10 Free Tools
No account. No watermarks. No limits.
Speed
Every tool is optimised for fast processing. Most operations complete in under a second.
Privacy
Your files are never stored permanently. Uploaded files are deleted immediately after processing.
Free Forever
All tools are free to use. No subscription, no trial period, no hidden charges.
What We Offer
Automatically fix broken quotes, mismatched columns, BOM, and encoding issues.
Identify the character encoding of any CSV file — UTF-8, ISO-8859-1, and more.
Convert between comma, semicolon, tab, pipe, or custom delimiters.
Detailed structural and encoding validation with row-level error reporting.
Deduplicate rows by all columns or a custom key column set.
Convert CSV to JSON as array-of-objects or array-of-arrays.
Combine up to 10 CSV files with column alignment by name or position.
Split large files into smaller chunks by row count, preserving headers.
Visual diff between two CSV files — added, removed, and modified rows.
Browse and search any CSV file in your browser — no upload required.
Questions or Suggestions?
We'd love to hear from you — whether it's a bug report, a feature request, or just a hello.
Get in Touch