📊

Lightweight Spreadsheet Alternative

Open CSV files instantly when you just need to read them, without launching Excel or Google Sheets.

Nid oes angen mewngofnodiMae ffeiliau'n aros yn breifat

Gollwng ffeiliau yma, neu cliciwch i bori

CSV, TSV, TXT dim cyfyngiad maint ffeil

Pori ffeiliau

— or —

Nid yw eich ffeiliau byth yn gadael eich dyfais. Mae'r holl brosesu yn digwydd yn lleol yn eich porwr.

Spreadsheet tips

📊

For files you just need to look at (logs, exports, downloads), this viewer is 100× faster than launching Excel.

💡

No installation, no upload, no account. Drop file → view table → close tab. Perfect for one-off CSV inspections.

🎯

On mobile: paste CSV text and view as a horizontally-scrollable table. Useful when you receive a CSV attachment on phone.

📋

For editing CSVs, you'll still want Excel/Sheets. This tool is read-only — focused on quick inspection.

Dewiswch Ffeil

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

Proses

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Lawrlwythwch

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

✓Hollol rhad ac am ddim - dim costau cudd, byth

✓Nid oes angen cyfrif, e-bost na mewngofnodi

✓Nid yw ffeiliau byth yn gadael eich dyfais

✓Dim cyfyngiadau maint ffeil o gwbl

✓Dim dyfrnodau ar unrhyw allbwn

Quick CSV Inspection

Open a CSV file in your browser to inspect its str

Debug CSV Exports from Apps

Inspect CSV exports from your application to verif

Prepare Data Before Import

Inspect a CSV before importing into a database, sp

Academic Dataset Inspection

Open CSV research data, survey responses, or exper