Reverse CSV Rows
Reverse CSV Rows preserves the first parsed row, reverses every later row, and reserializes cells. It does not sort by a value, detect whether a header exists, reverse columns, preserve original line endings/quoting, or stream huge files.
Runs locally — files stay on your deviceIs the header moved?
No.
Reversal changes sequence, not contents
The last data row becomes first; this is not chronological sorting unless source order was chronological.
How it works
Rows parse, slice(1).reverse changes order, and CSV escaping writes output.
Key concepts
First row assumed header
No toggle exists.
Columns stay
Only records move.
When to use it
- Invert an existing sequence.
- View newest-last data as newest-first.
- Test order-sensitive imports.
When not to use it
- Do not use headerless input blindly.
- Do not call reversal a value sort.
- Do not expect lexical preservation.
Worked examples
Three
- Input
h\n1\n2\n3- Expected output
h\n3\n2\n1
Header stays.
No header
- Input
1\n2- Expected output
1\n2
First data row is fixed.
Quoted data
- Input
Quoted commas- Expected output
Reserialized values
Lexical form may normalize.
Common mistakes
Headerless input
First record never moves. Correction: Add a header.
Expecting date sort
Values are ignored. Correction: Sort a normalized date column.
Assuming bytes retained
Quoting changes. Correction: Compare parsed values.
Best practices
- Confirm a header.
- Verify first and last records.
- Keep source.
Related operations and differences
CSV Column Extractor
Choose CSV Column Extractor when you need to extract one CSV column by header name.; use Reverse CSV Rows specifically for csv reverse rows.
CSV Column Remover
Choose CSV Column Remover when you need to remove one CSV column by header name.; use Reverse CSV Rows specifically for csv reverse rows.
CSV Duplicate Remover
Choose CSV Duplicate Remover when you need to remove completely duplicated CSV rows.; use Reverse CSV Rows specifically for csv reverse rows.
CSV Row Filter
Choose CSV Row Filter when you need to keep rows whose selected column contains a value.; use Reverse CSV Rows specifically for csv reverse rows.
CSV Sorter
Choose CSV Sorter when you need to sort CSV rows by a named column.; use Reverse CSV Rows specifically for csv reverse rows.
Compare JSON
Choose Compare JSON when you need to show value differences between two JSON documents.; use Reverse CSV Rows specifically for csv reverse rows.
Limitations and privacy
- First row always header; no headerless mode, column reversal, sorting, range, lexical preservation, streaming, or download.
The pasted data is parsed and transformed locally in this browser.
Frequently asked questions
Are columns reversed?
No.
Does header remain?
Yes.
Is this a date sort?
No.
Can quoting change?
Yes.