Before building our CSV Doctor, we checked two existing CSV repair tools directly — including one with almost the same name.
"6 validation checks," and duplicate rows isn't one of them
We checked csvdoctor.pages.dev directly — it validates entirely in the browser and reports rows kept, expected columns, issues found, issue rows, auto-fixes, and empty rows. That's a solid list, but nowhere in it is exact duplicate row detection. We checked jsontotable.org's CSV Fixer too, which documents unescaped quotes, mismatched columns, inconsistent delimiters, and duplicate headers — again, not duplicate rows. This tool flags exact duplicate rows by line number, with the line they first appeared on, so you can see precisely what's repeated and why.
Live vs. paste-scan-fix
jsontotable.org's own documentation describes a three-step flow: paste your broken CSV, the system scans it, then you apply fixes. That's an extra step between seeing your data and seeing the report. This tool's health report — delimiter, column mismatches, duplicates — updates live as you paste or type, no separate scan step.
Encoding you can actually see, not a black box
Every CSV repair tool we checked describes fixing encoding issues in vague terms — "garbled characters," "bad text decoding" — without showing what it actually did. This tool takes a more honest approach: upload a file (not paste, which already lost the original bytes) and switch between UTF-8, Windows-1252, EUC-KR, Shift-JIS, and ISO-8859-1. Each switch re-decodes the same original bytes live, so you can see with your own eyes which encoding actually produces readable text — instead of trusting an algorithm's guess.
