CSV Sorter
CSV Sorter finds the first exact header, preserves it, and sorts data rows by that cell using localeCompare with numeric=true. Values remain strings; blanks follow locale behavior, and there are no descending, secondary-key, case, locale, type, or duplicate-header controls.
Runs locally — files stay on your deviceAre values parsed as numbers?
No, but numeric-aware string comparison is requested.
Natural string sorting is not typed sorting
Numeric comparison options can place item2 before item10, while dates and localized numbers still need parsing rules.
How it works
The header index is found, rows sort on cell text, then CSV escaping writes output.
Key concepts
Exact header
Case and spaces must agree.
Rows move whole
All cells follow their sort key.
When to use it
- Sort a small CSV by a known column.
- Create natural-order review output.
- Keep records intact while ordering.
When not to use it
- Do not expect descending or multi-column sort.
- Do not sort dates without normalization.
- Do not use duplicate headers.
Worked examples
Natural
- Input
id\n10\n2- Expected output
2 before 10
numeric option.
Missing header
- Input
Name vs name- Expected output
Error
Exact match.
Blank
- Input
Missing sort cells- Expected output
Locale-dependent position
No blank policy.
Common mistakes
Expecting number conversion
Cells stay strings. Correction: Normalize types.
Wrong casing
Header lookup fails. Correction: Copy exact header.
Assuming locale stability
Default locale is used. Correction: Use explicit collation.
Best practices
- Validate header uniqueness.
- Normalize the sort field.
- Verify ordering.
Related operations and differences
CSV Column Extractor
Choose CSV Column Extractor when you need to extract one CSV column by header name.; use CSV Sorter specifically for csv sort.
CSV Column Remover
Choose CSV Column Remover when you need to remove one CSV column by header name.; use CSV Sorter specifically for csv sort.
CSV Duplicate Remover
Choose CSV Duplicate Remover when you need to remove completely duplicated CSV rows.; use CSV Sorter specifically for csv sort.
CSV Row Filter
Choose CSV Row Filter when you need to keep rows whose selected column contains a value.; use CSV Sorter specifically for csv sort.
Reverse CSV Rows
Choose Reverse CSV Rows when you need to reverse data-row order while keeping the header.; use CSV Sorter specifically for csv sort.
Compare JSON
Choose Compare JSON when you need to show value differences between two JSON documents.; use CSV Sorter specifically for csv sort.
Limitations and privacy
- One ascending column only; no explicit locale, descending, secondary keys, typed parser, blank policy, duplicate warning, or streaming.
The pasted data is parsed and transformed locally in this browser.
Frequently asked questions
Is the header sorted?
No.
Can I sort descending?
No.
Is matching case-sensitive?
Yes.
Are rows kept intact?
Yes.