CSV Record Slice Extractor
Extract inclusive CSV record ranges with stepping, optional header preservation and source-record tracking for quoted multiline data.
Ready. Explore the example or use the input controls to begin.
Scope and practical limits
Positions refer to parsed data records after the optional header, not physical text lines. Up to 1,000 source records, 100 cells per record and 20,000 source cells. Endpoints inclusive; step must be positive.
The tool processes your work in the browser. The website’s advertising and analytics follow its privacy and consent settings. Projects are not saved automatically. Media workspaces export their files directly rather than storing them in project JSON.
Using CSV Record Slice Extractor
Extract inclusive CSV record ranges with stepping, optional header preservation and source-record tracking for quoted multiline data.
- Load the example or import the primary input. Supply the second JSON input when comparing or merging.
- Choose the explicit transformation rules, then inspect the result and audit before downloading.
- Download the output, audit or exact matrix JSON. Save a project to retain editable settings.
Example
Select records 1–4 with step 2 to keep data records 1 and 3, with the header copied once.
Questions & answers
What behavior should I check before using the output?
Positions refer to parsed data records after the optional header, not physical text lines. Up to 1,000 source records, 100 cells per record and 20,000 source cells. Endpoints inclusive; step must be positive.
Are large JSON numbers rounded?
CSV values remain strings. JSON matrix downloads retain the exact cell text.
Is my input saved automatically?
No. Save a project or download your result before leaving. Processing is local; website ads and analytics follow the site consent and privacy settings.
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