Clean messy spreadsheets and run real statistics — right in your browser. No signup, no ads, no uploads.
Fix the damage Excel does to CSVs — stripped leading zeros, dates turned into numbers, long numbers mangled into scientific notation, stray whitespace. Review every change, then download an Excel-safe file.
Open Data Cleaner →Descriptives, missing-data handling & imputation, t-tests, ANOVA, correlation and chi-square — with correct p-values, effect sizes, charts, and a plain-English verdict. Validated against R/SciPy.
Open Statistics Dashboard →Instant data-quality report: column types, missing values, unique counts, distributions, duplicate rows — and an overall quality score with actionable warnings.
Open Data Profiler →Find and remove duplicate rows — match on any columns, exact or normalized (case/space/punctuation-insensitive), with a full preview of every group before anything is removed.
Open Deduplicator →CSV ⇄ TSV ⇄ semicolon-CSV ⇄ Excel ⇄ JSON. Auto-detects the input format, previews the output, downloads instantly.
Open Format Converter →Turn one flat, repetitive table into a real schema: mines functional dependencies, proposes dimension + fact tables toward 3NF, and lets you download each table.
Open Database Normalizer →Imagine what we'd build for your team — analytics, data pipelines, and infrastructure engineered to the same standard, on your data.
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