CSViser
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CSVTool.io
CSViser is an online CSV validation and cleaning tool that fixes common data quality issues without writing code.
Upload a CSV (or XLSX/JSON) and get an instant RFC 4180 validation report with plain-English error explanations. Then fix detected problems in one click: remove blank rows, trim whitespace, unify NULL variants, normalize character encoding (Windows-1251/CP1252 โ UTF-8), strip BOM, fix mixed line endings, convert delimiters (semicolon/tab/pipe โ comma).
Beyond basic fixes: - Deduplication โ exact and fuzzy (Levenshtein) by all columns or a key column - Column type validation and conversion โ dates, numbers, emails, phone numbers (E.164), URLs, booleans, currencies - Search & replace โ substring, exact match, or regex with 24 built-in presets - Row filter โ delete rows matching a column value - PII anonymization โ redact or mask emails, phones, credit cards, SSNs, IP addresses - Split file โ by row count, file size, or column value; output as ZIP - Merge files โ inner, left, and full outer join by key column - Export โ CSV, XLSX, JSON, Markdown - REST API โ programmatic processing with Bearer token auth and webhook delivery
Free plan: all features, files up to 500 rows. Pro plan: unlimited.
CSViser
CSVallCSVall's answer:
I have added all the relevent tools in it that user can use all in one place
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