Clean messy exports locally
Trim spaces, normalize values, split columns, convert dates, remove blanks, and prepare files without uploading business data.
Built for real-world CSV work.
CSV Power Editor focuses on the cleanup workflows that happen before data enters a CRM, ad platform, ERP, dashboard, database, or customer system.
Core workflows
The app covers the full cleanup loop.
Open the file, understand its structure, clean values, compare changes, filter rows, export the result, and keep a path back with undo.
Preview before you apply
Power Tools show affected rows and change counts first, then let you apply in place, to a new sheet, or to a new workbook.
Compare files people can review
Generate spreadsheet-friendly compare workbooks with summaries, source rows, changed columns, keys, and audit notes.
Filter and export exact rows
Build multi-column filters with live counts, visible chips, quick search, sort order, and export-only-visible workflows.
Undo real data operations
Move fast with a per-workbook undo stack for edits, row and column changes, sheet actions, and Power Tool results.
Automate with visible MCP
Let AI agents inspect, filter, edit, dedupe, trim, export, and save the open workbook while the app remains visible.
27 Power Tools
Focused actions for messy exports.
These tools are grouped around common spreadsheet preparation work instead of buried inside generic spreadsheet features.
Text cleanup
Trim, case, add, extract, remove characters, convert text, regex replace.
Data shape
Split names, split columns, combine columns, computed columns, randomize values.
Dates and types
Convert types and turn inconsistent text into normalized dates.
Duplicates
Remove duplicates, find duplicate cells, fuzzy duplicates, dedupe within a cell.
Compare
Compare files and multiple sheets by keys, values, changed columns, and status.
Merge and export
Merge files, filter rows, copy visible rows, and export clean outputs.
Filter Rows
Find & Replace
Trim Spaces
Trim All Cells
Change Case
Add Text
Extract Text
Remove Characters
Convert Text
Split Names
Regex Find & Replace
Fill Blanks
Delete Blanks
Remove Empty Rows
Convert Types
Text to Date
Computed Column
Remove Duplicates
Find Duplicate Cells
Fuzzy Duplicates
Dedupe Within Cell
Compare Files
Compare Multiple Sheets
Merge Files
Combine Columns
Split Column
Randomize Values
Large files
A practical path for bigger sheets.
CSV Power Editor uses SQLite-backed spill storage above 50,000 rows, has been verified with a 75K-row sample, and keeps a hard 1,000,000-row cap.
50K+
SQLite-backed spill threshold
75K
Verified sample workflow
1M
Hard row cap