What is a CSV tree viewer?

A CSV tree viewer renders your CSV as a collapsible tree so you can explore its structure visually. Each row and column cell becomes a node you can expand or collapse, which is far easier to read than raw CSV for large or deeply nested data.

How do I expand or collapse the tree?

Click any node to toggle it open or closed. Use the "Expand all" and "Collapse all" buttons to open or close the entire tree at once — handy for jumping between a high-level overview and the details.

Can I copy a single value from the tree?

Yes. Hover over any node and click the copy icon to copy that value to your clipboard. For a branch (a row), it copies the whole subtree; for a leaf it copies just that value.

Does it handle large or deeply nested CSV?

Yes. Collapsed branches aren't rendered until you open them, so even large CSV stays responsive. Deeper levels start collapsed so you see the overall shape first, then drill into the rows, columns and typed cell values you care about.

Is my CSV data private?

Completely. Parsing and rendering happen entirely in your browser — your CSV is never uploaded or sent to a server. There's no sign-up, and it works offline once the page has loaded.

CSV Viewer - Online CSV Table & Tree Viewer

CSV Viewer — Explore CSV as an Interactive Tree

Paste any CSV and explore it as a collapsible tree of rows and columns. The header row becomes the column keys, and every record turns into a node you can expand, collapse, search and copy — far easier to scan than a wall of comma-separated text for wide exports, database dumps or spreadsheet downloads. Parsing follows RFC 4180 — quoted fields, embedded commas and escaped quotes are handled — and runs entirely in your browser; your data is never uploaded.

Features

✅ Row & column tree — click any row to expand its columns
✅ Search by column or value — filter and highlight matches instantly
✅ Typed cells — numbers, booleans and null are detected automatically
✅ RFC 4180 parsing — quoted fields and embedded commas just work
✅ Expand all / Collapse all — toggle the whole table in one click
✅ Hover to copy — copy a single cell or a whole row
✅ 100% private — parsed and rendered in your browser, no upload, no signup

Common use cases

Inspect a spreadsheet export or database dump without opening Excel
Find a specific record in a wide CSV by searching the tree
Check which columns a CSV actually contains before importing it
Verify quoted fields and embedded commas parsed the way you expect

Why this CSV viewer

Raw CSV is hard to read once rows get wide or values contain commas; the tree turns each record into clickable structure and lets you search columns and values at once. The same explorer also handles JSON, XML, YAML and TOML — one free, client-side tool for every data format, with nothing sent to a server. Need a different format? Convert with CSV to JSON.

How to use

Paste or type CSV (with a header row) into the editor on the left.
Explore the tree on the right — click rows, search, or use Expand all / Collapse all.
Hover any cell and click the copy icon to copy it, or copy a whole row.

Related tools

JSON Viewer — explore JSON as a tree
XML Viewer — explore XML as a tree
YAML Viewer — explore YAML as a tree
CSV to JSON — convert CSV rows to a JSON array
CSV to XML — convert CSV to XML
JSON to CSV — convert JSON to CSV

CSV Viewer OnlineCSV ViewerCSV

Explore CSV as an interactive tree — rows, columns, search, expand & copy