Processing boundary
Input is processed only in the active browser tab's memory and is not sent to a ByteQuant server.
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Data & developer
CSV Pivot Summary
Group CSV rows by a category and calculate count, sum, or average summaries. It validates input locally and exposes transformation assumptions and data-loss risks.
✓ Free✓ No account✓ In-browser
Validated output
Your result will appear here.
Persistent storage
Input and output are not stored. The optional usage counter keeps only tool identity and count, never content.
Verification
Output comes from disclosed rules or browser APIs and needs independent review before high-impact use.
A result in three steps
- 01
Load the safe demo or enter your own data.
- 02
Run the local operation and inspect warnings and metrics.
- 03
Validate the result in the target environment and with edge cases.
When is this tool useful?
- ✓ Pre-publication quality checks
- ✓ Repeatable team workflows
- ✓ Making errors and edge cases visible
Important limitation
Automated output is a preliminary assessment. Do not use it alone for legal, financial, medical, or security-critical decisions.
LEARN THE WORKFLOW
Guides for this tool
Reshape CSV and JSON Data Without Silent Loss
Combine key mapping, filtering, pivoting, long-wide conversion, and fixed-width exchange in an auditable data pipeline.
Read guide →ABOUT THIS TOOL
Frequently asked questions
Does this tool send input to a server?+
No. Processing runs in this browser tab. Data leaves the page only when you choose to copy or download the result.
Is the result definitive?+
The tool produces consistent output from disclosed rules and browser APIs, but context, data quality, and method limitations can affect it. Verify high-impact decisions.
Is input saved?+
No. Tool input is not persisted. With consent, only tool identity and usage count may be kept on this device for personal shortcuts.