Pro-Data Viewer is a fast, reliable desktop application for exploring, filtering, and visualizing structured data—without writing code. It opens common formats such as CSV/TSV, Excel, JSON/NDJSON, Parquet, and SQLite, and can connect in read-only mode to databases like PostgreSQL for safe inspection.
Designed for analysts, engineers, and anyone who works with data, Pro-Data Viewer features instant filtering and multi-column sorting, regex search, type detection, and a clear schema view. Built‑in data profiling highlights null rates, unique counts, ranges, and outliers to help you spot data quality issues quickly. Create calculated columns with simple expressions, pivot and group data to summarize results, and generate quick charts (bar, line, scatter, histogram, box) to turn tables into insights.
Performance is a priority: streaming and lazy loading let you browse multi‑gigabyte files without loading everything into memory. Compare datasets side‑by‑side, run key‑based diffs to find changes, and preview joins before exporting. Save and share your work with named filters, bookmarks, and reusable workspaces; export filtered tables or charts to CSV, Excel, or images.
Pro-Data Viewer runs on Windows, macOS, and Linux, includes keyboard shortcuts and dark mode, and keeps your data private by default—processing happens locally unless you choose to connect to a database. more
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