DataFrog

Inspect, analyze, validate, compare, clean, and visualize datasets locally in your browser. Complete privacy — zero server uploads, no backend, no account required.

Explore complex nested data structures with interactive tree viewers, raw decoders, JSON/XML/YAML path finders, multi-sheet spreadsheet tab inspectors, and depth metrics locally in your browser.

Run detailed dataset statistical analysis, numerical summary metrics (mean, median, min, max, sum), missing value ratios, data type distributions, column profiling, and web server log error audits.

Validate JSON, XML, CSV, and YAML syntax accuracy, detect exact line & column error pointers, verify JSON Schemas (Draft-04, Draft-07, 2020-12), and enforce data structural integrity.

Perform side-by-side and inline structural diffing for Text, JSON, CSV, XML, and Excel files with key path tracing, added/deleted row detection, cell value modification highlights, and report exports.

Deduplicate Excel workbooks and CSV files, normalize whitespace, standardize casing, filter unwanted records, and sanitize raw datasets locally in your browser with zero data uploads.

Transform JSON, CSV, XML, Excel, and YAML datasets into interactive visual node trees, multi-sheet dashboards, searchable spreadsheet tables, and high-resolution chart graphics (Bar, Line, Pie, Doughnut).

Datafrog supports multiple data intelligence tools that runs in browser and data keep yours.