Private tabular data workspace
Make messy data
clear and trustworthy.
Open a table, understand its shape, apply reversible cleanup steps, and download a new result. CSV, TSV, and table-shaped JSON stay on your device by default.
Files are not uploaded from this dropzone. API-only formats open a consent and limits review before any transfer.
Popular workflows
One workspace, transparent steps
Data Viewer
Inspect rows, columns, parsing details, and schema.
Data Cleaner
Normalize whitespace, blanks, Unicode, case, and empty rows or columns.
Duplicate Finder
Find exact or key duplicates and review fuzzy candidates safely.
Dataset Comparator
Classify added, removed, changed, unchanged, and ambiguous rows.
Delimited Converter
Convert CSV, TSV, semicolon, and pipe-delimited files safely.
Local before remote
Your data does not become our library.
Browser venueOrdinary delimited and JSON work runs in a dedicated browser worker.
Rust venueLarge or native-format jobs upload only after per-run consent and expire automatically.
No accountNo sign-in, cloud library, or permanent server-side dataset retention.
Straight answers
Before you open a file
What stays local?
Supported CSV, TSV, JSON, and NDJSON workflows within measured device budgets. The app never silently falls back to upload.
What needs the API?
Spreadsheet containers, Parquet, SQLite, and heavy operations beyond local budgets. You see the host, limits, and deletion policy first.
Are formulas run?
No. Imported spreadsheet formulas, macros, external links, scripts, and embedded objects are never executed.