Free data tools, no upload required

Every tool below runs entirely in your browser — your file never touches a server. When viewing isn't enough, one click sends the data to the analysis workspace.

CSV Viewer

Drop a CSV and read it as a clean, sortable, searchable table.

CSV Splitter

Split a big CSV into smaller files by row count.

CSV Merger

Combine multiple CSVs into a single file — even when columns differ, the merger unions the headers and aligns every row.

CSV Editor

Open a CSV in an editable grid, correct the cells that need fixing, and download the cleaned file.

Excel Viewer

View any Excel workbook in your browser: switch between sheets, sort and search, no Office license needed.

Sentiment Analyzer

Paste reviews, survey answers, or feedback — one per line — and get instant positive/negative scoring.

Word Frequency Counter

Paste any text and see its most frequent terms with counts and a visual ranking — stopwords filtered, everything computed in your browser.

Need analysis, not just utilities?

The workspace runs verified AI analysis on your files and turns results into shareable reports.

Open the workspace