A CSV Viewer That Never Uploads Your Data
I just wanted to open a CSV file quickly. Instead, I got: Slow spreadsheet apps Online tools that upload my data Way too much friction So I defined a simple goal: Fast and frictionless Fully local (no uploads) Spreadsheet-like experience That’s what I built. Open CSV files instantly (drag & drop, no setup) Search and filter large datasets in seconds Edit data like a spreadsheet Export exactly what you see Everything happens locally in your browser: Your data never leaves your device No account r
I just wanted to open a CSV file quickly.
Instead, I got:
- Slow spreadsheet apps
- Online tools that upload my data
- Way too much friction
So I defined a simple goal:
- Fast and frictionless
- Fully local (no uploads)
- Spreadsheet-like experience
That’s what I built.
What you can do with it
- Open CSV files instantly (drag & drop, no setup)
- Search and filter large datasets in seconds
- Edit data like a spreadsheet
- Export exactly what you see
Why this matters
Everything happens locally in your browser:
- Your data never leaves your device
- No account required
- No tracking, no storage
Built with client-side JavaScript — no backend involved.
Just open, edit, and export.
How it works
Built with client-side JavaScript — no backend involved.
Spreadsheet-Like Editing
Click a cell to select it, then press Enter or double-click to start editing.
Press Enter again to save the value and move to the cell below. Use Option + Enter on macOS or Alt + Enter on Windows to insert a line break.
You can also drag the small fill handle to copy a value across multiple cells.
Export the Current View
The exported CSV reflects the current table state, including:
- Search results
- Sorting order
- Visible columns
- Saved cell edits
Try it yourself
Open a CSV file, edit a few cells, and export it —
all without uploading anything.
No signup. No upload. Just works.
Handles CSV files up to 25MB
Supports multiple languages
