Web-based · No install · No upload

Visualize any CSV online.

A free browser tool for turning spreadsheets into charts, distributions, KPIs and a sortable table. No signup, no install, and your data never leaves the tab.

01 · How it works

Browser-based, actually.

Most 'online' CSV tools upload your file to their server and call it 'online'. We don't. The page is the tool — everything runs locally and your data never leaves your tab.

i. visit

Open the page

That's the install. There's no app, no signup, no permission prompt. Open the tab and you're already in.

ii. drop

Drop a CSV

Drag from Finder / Downloads, or click to choose. We also handle Excel files.

iii. visualize

Get the visuals

KPIs, trend chart, breakdowns, distributions, sortable table, and plain-English insights computed from your data.

02 · What you see

Everything auto-built.

Drop a file and the page populates with a coherent set of views. Nothing to configure.

  • 01

    Headline KPIs

    Row count, primary metric total, top category, date range — picked by your column shape.

  • 02

    Trend over time

    Line chart with daily / weekly / monthly grain depending on the range.

  • 03

    Category breakdowns

    Bar charts and donut slices, clickable to filter the rest of the dashboard.

  • 04

    Distribution + table

    Histogram per numeric column, plus a searchable, sortable, semantically-formatted data table.

"Online CSV viewer that's actually online and actually a viewer. Wild combination."
— a healthily skeptical user
03 · FAQ

Online tool questions.

What does 'online' mean here?
Online as in 'works in your web browser, no install'. But the parsing and charting happen locally in your browser — nothing is uploaded to a server.
No. The tool runs entirely in your browser. No download, no account, no extension.
Yes — the layout is responsive and charts adapt. For large files (10MB+) a desktop browser is much faster.
First visit needs the internet to load the page. After that, the page can run offline for the current session. A proper offline-installable PWA is on the roadmap.
Anything modern: Chrome, Safari, Firefox, Edge, Brave. We use standard web APIs — no fancy requirements.
Use a screenshot or print-to-PDF for now. Shareable URLs (with the data embedded in the link) are on the roadmap.