Extract CSV columns by name into clean lists. Pull email and name columns from pasted CSV in seconds — local parsing, free, no signup.
Content reviewed October 2026 · About Toolzum
Rename CSV headers in bulk with old:new mapping — standardize client exports fast. Fix 40 messy columns before import — local parsing, 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.
Merge two CSV files on a shared key column — join related exports into one sheet. Combine two tables without spreadsheets — local merging, free, no signup.
Convert pasted tables, lists, and structured text into clean CSV rows. Turn copied web tables into spreadsheet data — local parsing, free, no signup.
Pull tables, form fields, and key-value pairs from stacks of PDFs into one clean CSV. Accountants turn 60 invoices into a spreadsheet in an afternoon — local pdf-lib parsing, 2 free batches a day.
By header name only (email) — enter one or more names separated by commas. Headerless files treat the first row as headers, so add one first.
Yes — extracted rows keep original order and duplicates. There is no built-in dedupe pass.
No — extraction runs locally in your browser. Very large pastes may slow the tab, so split huge files first.
No — parsing runs locally in your browser. Data never leaves your device.
Your typed list wins: typing email,name returns the email column first even if name leads the CSV. Unknown names are skipped silently; zero matches raises a No matching columns error.
Column Renamer
Rename CSV headers in bulk with old:new mapping — standardize client exports fast. Fix 40 messy columns before import — local parsing, free, no signup.
CSV Row Filter
Filter CSV rows by column value with case-insensitive contains matching. Keep only the rows you need — local, free, no signup.
Data Format Converter
Convert data between JSON, CSV, XML, YAML, and TSV with structure preserved. Migrate configs across stacks without rewriting — local PapaParse/xml2js/yaml parsing, free, no signup.
XLSX ↔ CSV Converter
Convert between XLSX workbooks and CSV files preserving sheets and encoding. Move data across Excel and pipelines — local SheetJS work, unlimited saves.