01INSTALL
Pin the extension
Add to Chrome in one click. No setup, no config. Works the moment it's installed.
›
Chrome extension · 100% local · No upload
OPEN ANY CSV
IN
SECONDS.
Drop a CSV or TSV file in your browser. Sortable, filterable, editable tables with PapaParse streaming. No upload, no signup, no waiting.
HOW IT WORKS
THREE STEPS.
ZERO FRICTION.
02OPEN
Drag any CSV in
Drop a file from your desktop, click a .csv link, or open one from Downloads. We auto-detect the delimiter.
03WORK
Sort. Filter. Edit.
Click any header to sort. Type / to filter. Double-click any cell to edit. Export when done.
BEFORE / AFTER
DRAG TO
COMPARE.
Same file. On the left, a CSV opened in Chrome's default viewer, just raw text. On the right, the same file rendered as a sortable, filterable table in 1.2 seconds.
id,region,product,revenue,status
1042,APAC,Pro Annual,2890,paid
1043,EMEA,Pro Monthly,320,paid
1044,APAC,Team Annual,5600,pending
1045,AMER,Pro Annual,2890,paid
1046,APAC,Pro Monthly,120,trial
1047,EMEA,Team Annual,5600,paid
1048,AMER,Pro Annual,2890,paid
1049,APAC,Team Monthly,580,paid
1050,EMEA,Pro Monthly,320,trial
1051,AMER,Team Annual,5600,paid
1052,APAC,Pro Annual,2890,paid
1053,AMER,Pro Monthly,320,paid
| ID | Region | Product | Revenue | Status |
|---|---|---|---|---|
| 1042 | APAC | Pro Annual | $2,890 | Paid |
| 1043 | EMEA | Pro Monthly | $320 | Paid |
| 1044 | APAC | Team Annual | $5,600 | Pending |
| 1045 | AMER | Pro Annual | $2,890 | Paid |
| 1046 | APAC | Pro Monthly | $120 | Trial |
| 1047 | EMEA | Team Annual | $5,600 | Paid |
| 1048 | AMER | Pro Annual | $2,890 | Paid |
| 1049 | APAC | Team Monthly | $580 | Paid |
EVERYTHING YOU NEED
BUILT FOR PEOPLE
WHO LIVE IN CSV.
Click to sort
Click any column header for ascending, click again for descending. Multi-column sort with shift-click.
Live filter
Type and rows reduce in real time. Searches every column at once. Regex mode for advanced users.
Inline edit
Double-click any cell. Edit. Tab to the next. Save back to a fresh CSV with one click. Undo and redo with Ctrl+Z.
Streaming parser
PapaParse with a Web Worker. Parses 100,000 rows in under 2 seconds, 1M rows in under 20. Zero UI blocking.
100% local
Files never leave your browser. No server upload. No analytics on file contents. Audit the source if you want.
Auto-detect format
Comma, tab, pipe, semicolon, custom. Quoted fields, escapes, multiline cells, UTF-8 with or without BOM.
Frozen header & columns
Keep the header row visible while scrolling. Pin up to 3 columns to the left. Resize columns by dragging.
Smart type detection
Numeric columns sort numerically, dates sort chronologically, text alphabetically. Override per column in one click.
Export anything
Save filtered results back as CSV, TSV, JSON, or Markdown table. Or copy to clipboard for Slack and Notion.
Pivot & aggregate (Pro)
Group by any column. Sum, count, average, min, max. Pivot tables without leaving the browser.
Inline charts (Pro)
Highlight any numeric column, get a sparkline. Two-column selection auto-renders a scatter or bar chart.
Recent files
Quick-open the last 20 CSVs you viewed without re-dragging. Stored locally, never synced anywhere.
100K
Rows in <2s
500MB
Max file tested
9
Delimiter formats
0
Bytes uploaded
PRICING
FREE FOREVER.
PRO WHEN YOU NEED IT.
Free
$0
forever, no card
- Files up to 5,000 rows
- Sort, filter, inline edit
- Export to CSV, TSV, JSON
- Frozen header row
- 9 delimiter formats
- 100% local, no upload
Pro
$3.99 / mo
or $19 / year, save 60%
- Unlimited rows, up to 500MB
- Pivot tables & aggregations
- Inline sparkline charts
- Pin up to 3 columns
- Regex filter mode
- Markdown export & recent files
FAQ
QUICK ANSWERS.
Does my CSV data leave my computer?
No. The extension parses files entirely in your browser using PapaParse and a Web Worker. No upload to any server, no analytics on file contents, no third-party requests. You can audit the source for yourself.
What is the row limit?
Free tier handles files up to 5,000 rows comfortably. Pro removes the row cap. We've tested files up to 500MB and around 2 million rows on a mid-range laptop with no UI lag.
Which delimiters are supported?
Comma, tab, pipe, semicolon, colon, space, and any custom single-character delimiter. The parser auto-detects on open. Quoted fields, escaped quotes, and multiline cells are all handled.
Can I edit and save back?
Yes. Double-click any cell to edit. Ctrl+Z to undo, Ctrl+Shift+Z to redo. When you're done, click Export to download a fresh CSV (or TSV, JSON, Markdown) with your changes.
How accurate is the type detection?
Numeric columns are detected by sampling the first 1,000 values. Dates use ISO-8601, slash, dash, and dotted formats. If the auto-detect gets it wrong, click the column header dropdown and override (Number, Date, Text, Boolean) in one click.
Does it work offline?
Yes, completely. There's no network call at any point. Drop a CSV in airplane mode and it just works.
What permissions does the extension need?
Three: activeTab (read the current tab so we can render the CSV), storage (save your preferences and the recent-files list), and alarms (clean up the recent-files index). No host permissions, no broad access.
STOP DOWNLOADING
EXCEL.
Your browser already opens HTML, JSON, PDFs, images. Now it opens CSVs too. Free forever.
Install for Chrome