Filter CSV rows by column value with case-insensitive contains matching. Keep only the rows you need — local, free, no signup.
Content reviewed October 2026 · About Toolzum
Remove duplicate rows from CSV data based on a specific column. Keep only unique values for cleaner datasets — local processing, free, no signup.
Sort CSV rows by any column ascending or descending — numbers by value, text alphabetically. Order sales rows in seconds — local parsing, free, no signup.
Validate CSV structure — flag rows with wrong column counts and empty cells before import. Catch bad rows locally — free, no signup.
Profile CSV datasets — row counts, column types, null rates, value distributions. Scope data quality before analysis — local parsing, free, no signup.
Clean messy CSVs — trim whitespace, fix encodings, deduplicate rows, standardize blanks. Make client exports analysis-ready — local processing, free, no signup.
One: case-insensitive contains on a single column. There are no exact-match, numeric-comparison, or not-equal operators.
No. One column and one value per run — filter once, then filter the result again for a second condition.
Yes. The filtered rows are output as a new CSV with the same headers as the original, with copy and download buttons. The source input is not modified.
Filtering runs in browser memory. Very large pastes may slow the tab — for huge datasets, filter in smaller chunks.
No. All filtering happens locally in your browser. No data is sent to any server.
Every row matches — an empty string is contained in all values, so the full table returns with the match count equal to all rows. Filtering is always case-insensitive substring on one column per run.
Column Extractor
Extract CSV columns by name into clean lists. Pull email and name columns from pasted CSV in seconds — local parsing, free, no signup.
CSV Pivot Generator
Pivot CSV rows into summary tables — group, count, and sum without spreadsheets. Summarize 10k sales rows by region instantly — local pivoting, free, no signup.
CSV to SQLite Web Terminal
Convert CSV files into queryable SQLite databases in your browser. Turn 100k-row exports into SELECT-able tables — local sql.js work, unlimited saves.
CSV to SQL INSERT
Convert CSV data into SQL INSERT statements with inferred column types. Seed test databases in minutes — local conversion, free, no signup.