CSV cleanup landing page

Fix CSV Encoding Issues Online

Detect suspicious encoding artifacts in CSV text before they break imports, names, or downstream reporting.

Upload a messy spreadsheet

Supports CSV, TSV, XLSX, and XLS. Current plan: Free with files up to 1 MB and 5 analyses per day.

Encoding glitches often show up as replacement characters or broken names after export and import.
CleanCSV helps you spot suspicious text early so you can fix source files before data spreads.
The report can surface rows that need manual review or AI guidance.

Upload the CSV or spreadsheet with suspicious text values.
Review any rows that appear to contain broken characters.
Use the report output to decide whether the source file should be re-exported as UTF-8.

Not yet. The current product focuses on detection and review so incorrect automatic replacements do not corrupt valid data.

Re-export the source file as UTF-8 when possible, then re-run the diagnostic to confirm the issue is gone.

Upload a messy CSV, detect duplicate rows instantly, and export a cleaner file without rewriting formulas or scripts.

Standardize mixed date formats like YYYY-MM-DD and MM/DD/YYYY into one clean export-ready format.

Detect empty cells, understand which columns are affected, and fill missing values before you export clean data.

Trim leading and trailing whitespace that silently breaks joins, lookups, deduplication, and imports.