Data Filter

Filter and query large datasets with advanced conditions and conditional logic

Data Filtering

Upload data and create advanced filters with multiple conditions

Frequently Asked Questions

What file formats does the Data Filter tool support?

The Data Filter tool supports both CSV and JSON file formats. You can upload files up to 10MB in size. The tool automatically detects the format and parses the data for filtering.

How do I create multiple filter conditions?

Click the Add Filter button to create a new condition. Each filter lets you select a column, choose an operator (equals, contains, greater than, etc.), and enter a value. You can chain multiple filters together using AND or OR logic to create complex queries.

What filter operators are available?

The tool provides 11 operators: Equals (=), Not Equals (≠), Contains (⊃), Starts With (↦), Ends With (↤), Greater Than (>), Less Than (<), Greater or Equal (≥), Less or Equal (≤), Is Empty (∅), and Is Not Empty (∄). These operators work with text, numbers, and empty values.

How does AND/OR logic work in filters?

When you have multiple filters, each condition (except the first) can use AND or OR logic. AND means all conditions must be true for a row to pass. OR means at least one condition must be true. You can combine both to create sophisticated filtering rules.

Can I preview data before and after filtering?

Yes! The tool has three view modes: Filters (to create and edit conditions), Preview (to see the original unfiltered data), and Results (to view filtered data with search capability). Switch between these tabs to compare before and after.

How do I export the filtered results?

After filtering your data, click the Download button to export filtered results as a CSV file. You can also click Copy Results to copy the filtered data to your clipboard in CSV format. Both options preserve your filter results.

What statistics does the tool show?

The Filter Statistics panel displays four key metrics: Total Rows (original dataset size), Filtered Rows (results matching your conditions), Active Filters (number of conditions applied), and Pass Rate (percentage of data passing filters). These update in real-time as you modify filters.

Is my data secure when using this filter tool?

Absolutely! All data processing, filtering, and exports happen entirely in your browser using JavaScript. No data is uploaded to servers or transmitted anywhere. Your files remain completely private and secure on your device throughout the entire filtering process.