Edit datasets manually, or use visual tools to perform common data operations like inserts, joins, and pivots. Free forever, and all data stored in your browser locally.
Merge many CSV files into one, even if they have different columns. Visually inspect results. Export to CSV, JSON, TSV, or plain text.
Merge CSV files by inserting new rows. Ideal for combining datasets without modifying existing data.
Combine CSV files by updating existing rows and inserting new ones. Perfect for synchronizing datasets.
Combine two CSV files into one by updating existing rows only. Refresh data without adding new entries.
Merge CSV files using an inner join. Combine datasets based on matching values in both files.
Merge CSV files using an outer join. Combine all data from both files, including non-matching rows.
Enrich your data with external APIs. Select a service, add parameters, and preview the response. Export the data to CSV, JSON and more.
Split your large CSV files into smaller, manageable chunks visually. Powerful features like splitting by filesize and records.
Visual JSON Schema editor to help you annotate and validate JSON data, plus use for JSON mode in LLM apps.