Tool

Fix Broken CSV Online

Upload your broken CSV file. We detect and fix encoding errors, wrong delimiters, BOM characters, broken quotes, and more — then give you a perfectly clean CSV for download.

Drop your CSV here

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CSVTSVTXT
100% LOCAL · ZERO SERVER CONTACT · YOUR CPU ONLY

MAX 50MB · WORKS OFFLINE · NOTHING UPLOADED

What does “Fix CSV” repair?

Encoding mismatch (UTF-8, Latin-1, Windows-1252, UTF-16)
Wrong delimiter (semicolon, tab, pipe → comma)
BOM (Byte Order Mark) at file start
Unescaped or doubled quote characters
Windows CRLF line endings → LF
Extra metadata rows at the top of the file
Trailing whitespace in every cell
Completely empty rows throughout the file
Null byte characters (0x00)

Frequently asked questions

Why won't my CSV file open?

The most common causes are: wrong file encoding (the file uses Latin-1 or Windows-1252 but your software expects UTF-8), wrong delimiter (the file uses semicolons but the tool expects commas), or a BOM (Byte Order Mark) character at the start of the file. Structra detects and fixes all of these automatically.

Is it safe to upload my CSV?

Your file never leaves your browser. Structra processes CSV files entirely on your device using client-side JavaScript. Nothing is sent to any server. We have zero access to your data.

What CSV encoding errors can you fix?

We fix UTF-8 encoding errors, Windows-1252 (CP1252) to UTF-8 conversion, Latin-1 (ISO-8859-1) to UTF-8 conversion, UTF-16 BOM markers, and garbled characters caused by mismatched encodings.

How do I fix a CSV with semicolons instead of commas?

Upload your CSV to Structra. We automatically detect that your file uses semicolons as the delimiter and convert it to a standard comma-separated file. No settings required.

Can you fix very large CSV files?

Free plans support files up to 50MB processed entirely in your browser. For files over 50MB, our Pro plan supports up to 100MB and offers faster processing.