whatevertool logowhatevertool
table_chart

CSV Tools

Privacy-first processing. View, edit, inspect, and convert CSV files fully client-side.

verified_userSecure: Zero Uploads

View & Edit

table_chart

CSV Viewer & Editor

View, edit, filter, and validate CSV files in an interactive grid.

View & editarrow_forward
view_column

CSV Column Manager

Easily append or delete columns from tabular CSV files.

Manage columnsarrow_forward
edit_note

CSV Header Rename

Rename individual column header items.

Rename headersarrow_forward
table_rows

Large CSV Viewer

Stream and view CSV files up to 500 MB in your browser — fully client-side, no upload.

View large filearrow_forward

Validate & Analyze

check_circle

CSV Validator

Validate CSV formatting syntax and check for column size mismatches.

Validate CSVarrow_forward
monitoring

CSV Column Profiler

Analyze columns for null percentage, unique values, min, max, average, sum.

Profile columnsarrow_forward
difference

CSV Diff

Compare two CSV files side-by-side to highlight added, removed, or changed rows.

Compare filesarrow_forward
bar_chart

CSV Quick Chart

Plot and generate inline SVG bar or line charts directly from CSV columns.

Build chartarrow_forward

Clean & Transform

cleaning_services

CSV Cleaner

Clean CSV rows, trim blank spaces, and normalize headers.

Clean dataarrow_forward
playlist_remove

CSV Deduplicator

Remove duplicate rows from a CSV based on select columns or full matching.

Remove duplicatesarrow_forward
sort

CSV Sort

Sort rows by one or multiple column values in alphabetical or numerical order.

Sort rowsarrow_forward
filter_alt

CSV Filter

Filter records matching queries in specific columns.

Filter rowsarrow_forward
shuffle

CSV Sampler & Shuffler

Randomly sample subset rows or shuffle all row entries.

Sample & shufflearrow_forward
find_replace

CSV Find & Replace

Find and replace cells inside specific columns or whole sheets.

Find & replacearrow_forward
sync_alt

CSV Transpose

Swap columns and rows in a CSV spreadsheet structure.

Transpose dataarrow_forward
playlist_add_check

CSV Unique Extractor

Extract sorted lists of unique values from a specific column.

Extract uniquearrow_forward
format_color_fill

CSV Fill Empty Cells

Fill in blank cells inside columns with a default fallback value.

Fill empty cellsarrow_forward

Combine Files

call_split

CSV Splitter

Split a large CSV into multiple files by row limit.

Split filearrow_forward
join_inner

Join CSV Files

Join two CSV files together using matching key columns.

Join filesarrow_forward
call_merge

Merge CSV Files

Merge multiple CSV files vertically into a single output.

Merge filesarrow_forward

Convert Format

swap_horiz

CSV to JSON Converter

Convert tabular CSV records to structured JSON arrays.

Convert to JSONarrow_forward
swap_horiz

JSON to CSV Converter

Convert JSON arrays of objects to tabular CSV format.

Convert to CSVarrow_forward
swap_horiz

CSV to XML Converter

Convert CSV spreadsheets to standard XML node structures.

Convert to XMLarrow_forward
swap_horiz

XML to CSV Converter

Convert XML structures to standard comma-separated CSV rows.

Convert to CSVarrow_forward
swap_horiz

CSV to YAML Converter

Convert CSV spreadsheets to structured YAML outputs.

Convert to YAMLarrow_forward
swap_horiz

YAML to CSV Converter

Convert YAML structures to relational CSV records.

Convert to CSVarrow_forward
table_chart

CSV to Markdown Table

Convert CSV rows to readable Markdown table elements.

Convert to tablearrow_forward
table_chart

CSV to HTML Table

Convert CSV rows to clean HTML tables.

Convert to tablearrow_forward
swap_horiz

TSV to CSV Converter

Convert tab-separated TSV tables to comma-separated CSV spreadsheets.

Convert to CSVarrow_forward
swap_horiz

CSV to TSV Converter

Convert CSV spreadsheets to tab-separated TSV files.

Convert to TSVarrow_forward
view_column

Fixed-width to CSV

Parse text inputs with fixed column widths into standard CSV rows.

Convert to CSVarrow_forward
database

CSV to SQL Converter

Convert CSV rows directly to SQL INSERT statements.

Convert to SQLarrow_forward
swap_horiz

CSV to Excel Converter

Convert CSV spreadsheets directly to Excel .xlsx sheets.

Convert to Excelarrow_forward
swap_horiz

Excel to CSV Converter

Extract standard CSV rows directly from Excel .xlsx files.

Convert to CSVarrow_forward
swap_horiz

JSON to Excel Converter

Convert structured JSON arrays of objects to Excel .xlsx sheets.

Convert to Excelarrow_forward
add

More coming soon

We are building new browser-based tools every week.