Clean messy exports locally
Trim spaces, normalize values, split columns, convert dates, remove blanks, and prepare files without uploading business data.
CSV Power Editor
Power Tools for CSV & Excel.
Open messy exports, preview every change, run 27 local Power Tools, undo safely, and let AI agents help through a secure local MCP server.
27 local Power Tools14-day full Pro trial300-row free modeLifetime Pro $14.99MCP for trial and Pro
Power Tools
The cleanup work is already built in.
CSV Power Editor turns repeat spreadsheet tasks into guided, preview-first actions instead of formula chains, helper columns, and copy/paste steps.
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
Features
Speed plus confidence.
The app is built for the loop that matters: understand the file, clean it, verify the result, export, and move on.
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.
App screenshots
More of the working surface.
A closer look at the real Mac app surfaces behind the workflow: the workbook grid, Power Tools inspector, and filter/edit rail.
Large workbook grid
Open the export, scan rows, search visible cells, and edit records directly in the workbook.
Power Tools inspector
Dedupe, merge, split, process, clean text, clear, randomize, formula, and convert tools stay one panel away.
Filters and cell editor
Use sheet tabs, selected-cell edits, filter chips, and MCP status feedback without leaving the file.
Local-first by design
Clean sensitive files without uploading them.
CSV files often contain customer emails, financial rows, inventory, supplier lists, and internal reports. CSV Power Editor processes files locally on the Mac instead of sending them to a web cleaner.
SQLite-backed path
Verified with a 75K-row sample and built with a practical large-file path.
No cloud workspace
No account is required to open, clean, compare, filter, or export local files.
Preview: Trim Spaces
Before apply Affected rows 18,204
Changed cells 42,781
Output New sheet or in place
Undo Available after apply
MCP automation
AI agents can operate on the file you can see.
The embedded MCP server exposes 21 tools across read-only, non-destructive UI, and gated destructive tiers. It is loopback-only, bearer-token protected, and writes an append-only audit log.
CSV Power Editor MCP 127.0.0.1
{
"server": "csv-power-editor",
"url": "http://127.0.0.1:55173/mcp",
"tools": 21,
"destructiveTools": "default off",
"auditLog": "mcp-audit.log"
} Pricing
Free trial, then one clean upgrade.
Launch plan: free download, full trial-style app for 14 days, then small-file free mode or Lifetime Pro.
Free
$0
After the trial, keep editing smaller files with full local workflows for up to 300 rows.
- Full app trial for 14 days
- 300-row free mode after trial
- Local CSV/XLSX open and edit
- MCP hidden after trial unless upgraded
Lifetime
Pro
$14.99
One non-consumable purchase unlocks larger files, save/export flows for larger workbooks, and MCP automation.
- Large-file unlock
- MCP server and bearer token controls
- Export visible rows and save workbooks
- Future Pro improvements for this app
Different by focus
Not a spreadsheet suite. A cleanup power tool.
The app is strongest when the job is opening an export, understanding it, cleaning it, comparing it, filtering it, saving it, and moving on.
Local Mac app
Native SwiftUI shell and AppKit-backed table grid.
Preview first
Transformations show rows and counts before commit.
Audit-friendly compare
Result workbooks are made for review and handoff.
Agent-ready
MCP automation works on visible app state.
Coming soon on the Mac App Store
Try the complete app first.
CSV Power Editor will be free to download with a 14-day full Pro trial. After the trial, free mode supports files up to 300 rows. Lifetime Pro unlocks larger files and MCP automation for a one-time $14.99 purchase.