Edit it exactly how you want
A familiar, spreadsheet-style grid with every tool right where you reach for it. It stays smooth whether your file has a hundred rows or a million.
Features
Everything you need for working with CSV
SmoothCSV provides a comprehensive set of tools for working with CSV files efficiently.
Built for real CSV work
More than an editor
Query with SQL, diff two files side by side, and see live stats for any selection. SmoothCSV is for understanding your data, not just changing it.
Reads your format, keeps your data
SmoothCSV detects your file's encoding, delimiter, quoting, and header row on open, then changes nothing you didn't. No leading zeros dropped, no dates rewritten, no quoting changed behind your back.
Every feature is reachable from the Command Palette. Press ⌘⇧P (or Ctrl+Shift+P) and start typing.
Editing & Navigation
Spreadsheet-style editing tuned for tabular data.
Power Grid Editor
Intuitive editing with a spreadsheet-style UI, smooth even on large files.
Row/Column Tools
Insert, delete, move, hide, dedupe.
Multi-Cell Edit
Edit multiple cells at once, similar to multi-cursor editing.
Auto-Fill
Drag-fill cells with intelligent pattern detection.
Swap Cells
Swap selected cells with their neighbors in any direction.
Cell Value Panel
A docked editor, like Excel's formula bar, for long or multi-line entries.
Transpose
Swap rows and columns in a single command.
Read-Only Mode
Lock a file to prevent accidental edits.
Smart Selection
Add or subtract ranges, invert the whole selection, and select column or row bodies that skip the header.
Find, Filter & Sort
Locate, narrow down, and reorder data with precision.
Find & Replace
Search and replace with regex support.
Quick Filter
Pick values to keep, or build conditions, straight from the column header.
Filtering
SQL-style filters or a visual condition builder.
Smart Sort
Auto-detects numbers, dates, and text, and sorts in the right order for each.
Multi-column Sort
Sort by multiple keys, with direction and type per column.
Data Tools
SQL, compare, aggregate, transform: the operations CSV power users run every day.
SQL Console
Run SELECT queries on your CSV files.
CSV Compare
Diff two files (or against the clipboard) side by side, with one-click merge and character-level highlights.
Aggregation
Quick stats for any selection: Sum, Average, Min, Max, Count.
Aggregate Rows
Pin summary rows in the grid so totals stay visible as you scroll.
Text Transforms
Instant casing, naming, and full-width/half-width conversions.
Join & Split
Merge or split cells horizontally or vertically.
File Formats
Every quirk of the CSV format, expressed and preserved.
Customizable File Formats
Per-file delimiter, quotes, encoding, and line endings.
Quoting Control
Apply different quoting rules to headers, body, and individual columns, or switch to manual mode to preserve each cell's original quoting.
Quote Indicators
See which cells will be quoted on save at a glance.
Format Presets & Rules
Save your favorite formats and auto-apply them by file path.
Auto-detection
Delimiter, encoding, and header rows detected automatically on open.
Interop & Sharing
Move data into and out of SmoothCSV without friction.
Copy / Paste As
Export selections as Markdown, HTML, JSON, SQL, LaTeX, and more.
Excel Import / Export
Open and save `.xlsx` files.
Open Hyperlinks
Open URLs in cells directly in your browser.
CLI
Open files from the terminal, jump to any row or column, pipe stdin, or diff two files.
Deep Link
Open files with `smoothcsv://` URLs.
Customization
Make SmoothCSV match the way you work.
Customizable Keybindings
Rebind any shortcut, with optional context conditions.
Themes
Light or dark, with system auto-detect.
Localization
English, Japanese, Chinese, French, Italian, Spanish, German, Russian, Korean, Portuguese.
Platform & Reliability
Available where you are, fast and predictable on the files you actually open.
macOS, Windows, Linux
Native installers for every major desktop platform.
Windows Portable
Install-free Windows build for USB drives or restricted environments.
Arch Linux (AUR)
Officially distributed as `smoothcsv-bin`.
Lightning Fast
Opens a 100MB CSV up to 12× faster than Excel, and stays responsive while you scroll.
Auto-backup
Automatically back up files before overwriting.
Auto-refresh
Reload automatically when the file changes on disk.
On the roadmap
Direction SmoothCSV is heading. Track progress on the GitHub repo.
- SmoothCSV in Browser
- Extension system
- CSV schema & validation
- Additional formats (JSON, Avro, Parquet, …)
- AI integration