Read your structured files, without the squinting.
Paste or upload CSV, TSV, JSON, JSONL, or YAML — configs, analysis dumps, exports — and read them as a clean table or collapsible tree. Long cells stay tidy and expand on click. Everything runs in your browser; nothing leaves the page.
About
A fast, private viewer for the structured files researchers actually deal with — configs, metric dumps, dataset samples, and analysis exports — without opening a spreadsheet app or writing a parsing snippet.
Formats
Leave the format on Auto-detect and it will pick the right parser from the content (and the file extension when you upload). Override it from the dropdown if a file is ambiguous.
Table, tree, or raw
- Table — for row-shaped data (CSV/TSV, a JSON array of objects, or JSONL). Columns are the union of every row's keys, sortable by clicking a header. Nested values show as an expandable badge.
- Tree — for nested or hierarchical data (a YAML config, a JSON object). Collapse and expand branches to navigate deep structures.
- Raw — the normalized data pretty-printed as JSON, ready to copy.
Long cells
Free-text columns — prompts, logs, descriptions — are truncated to a single line by default so the table stays scannable. Click any truncated cell to expand it in place, or flip Wrap cells to expand everything at once. The same clamp-and-expand behaviour applies to long string values in the tree.
Privacy
There is no server and no analytics. The only network request is loading the web fonts on first visit — your data is parsed and rendered entirely on your device. Save this page and it works offline.