A native macOS CSV and TSV viewer. See your data as a sortable table — click any cell to jump to it in the source.
- Three-panel layout — file sidebar, editor, and table preview
- Syntax highlighting — commas, quotes, and field structure
- Live preview — spreadsheet-style table rendered as you type
- Directory browsing — navigate folders, subdirectories, and files
- Quick open — fuzzy file finder (Cmd+P)
- Auto-save — saves as you type with dirty-file indicators
- Find & replace — native macOS find bar (Cmd+F)
- Tab support — multiple files in tabs
- Line numbers — optional gutter with current line highlight
- Word wrap — toggle with Opt+Z
- Font size control — Cmd+/Cmd- to adjust, Cmd+0 to reset
- Light & dark mode — follows system appearance
- Status bar — row count, column count, file size
- Open from Finder — double-click
.csvor.tsvfiles to open in TinyCSV - On-device AI — Cmd+K to ask questions about your data (CoreML, fully offline)
- macOS 26.0+
- Xcode 26+ (to build)
xcodegen generate --spec project.yml
xcodebuild clean build \
-project TinyCSV.xcodeproj \
-scheme TinyCSV \
-configuration Release \
-derivedDataPath /tmp/tinybuild/tinycsv \
CODE_SIGN_IDENTITY="-"
rm -rf /Applications/TinyCSV.app
cp -R /tmp/tinybuild/tinycsv/Build/Products/Release/TinyCSV.app /Applications/
xattr -cr /Applications/TinyCSV.app| Shortcut | Action |
|---|---|
| Cmd+N | New file |
| Cmd+O | Open folder |
| Cmd+S | Save |
| Cmd+P | Quick open |
| Cmd+F | Find |
| Cmd+K | AI assistant |
| Opt+Z | Toggle word wrap |
| Opt+P | Toggle preview |
| Opt+L | Toggle line numbers |
| Cmd+= / Cmd+- | Font size |
| Cmd+0 | Reset font size |
Built with SwiftUI, NSTextView, and TinyKit.
Part of TinySuite
Native macOS micro-tools that each do one thing well.
| App | What it does |
|---|---|
| TinyMark | Markdown editor with live preview |
| TinyTask | Plain-text task manager |
| TinyJSON | JSON viewer with collapsible tree |
| TinyCSV | Lightweight CSV/TSV table viewer |
| TinyPDF | PDF text extractor with OCR |
| TinyLog | Log viewer with level filtering |
| TinySQL | Native PostgreSQL browser |
MIT