BUY WEBSITES
BUY DOMAINS
LOGIN
SIGNUP
List to Comma / Column Converter
A list to comma / column converter reshapes a list of items from one separator into another: newline-separated lines become a comma string, a comma string becomes one item per line, and tabs, spaces, pipes, or any custom delimiter convert between each other on demand. It exists because the format a tool exports rarely matches the format the next tool wants, and reformatting that list by hand is slow and error-prone.
This converter is free and runs entirely in your browser. Paste a list, pick a target separator, and it splits, cleans, and rejoins the items instantly, with options to trim whitespace, drop blanks, remove duplicates, sort, change case, and wrap each item in quotes. Nothing you paste is uploaded or stored.
🔒 Private: everything runs in your browser. Nothing you paste is uploaded.
How to convert a list between commas and columns
Paste a list in any common format, choose what to split on and what to join with, then apply the clean-up options. The output updates on every keystroke, so the converted list is ready to copy the moment it looks right.
Let auto-detect read the input, or set the separator yourself
Auto-detect counts the candidate separators in what you paste, newline, comma, tab, pipe, and semicolon, and splits on whichever dominates, so a list copied from a spreadsheet column or a comma string both parse correctly without any setup. When a list mixes separators or uses something unusual, switch the split selector to the exact delimiter or enter a custom one. The detected separator is shown beneath the input box so you can confirm the parser read the list the way you intended before trusting the output.
Clean the list while you convert it
Reformatting is the right moment to tidy a list. Trim removes the stray leading and trailing spaces that break exact-match lookups, drop-empties discards blank lines left by a sloppy copy, and remove-duplicates collapses repeated entries while preserving the order they first appeared. Sort orders the items alphabetically and numerically, and the case control normalises everything to lowercase or uppercase. Each option is applied in a predictable sequence, trim, then drop, then dedupe, then sort, so the result is stable no matter which boxes are ticked.
Wrap items for SQL, code, and config files
Many destinations need each item quoted, not just separated. The wrap control can surround every item in single quotes for a SQL IN (...) clause, double quotes for a JSON or JavaScript array, backticks, or square brackets, and the join separator handles the comma-and-space between them. That turns a pasted column of IDs, slugs, or keywords into a ready-to-paste argument list in one step, instead of adding quotes by hand and risking a missed comma that breaks the query.
List converter frequently asked questions
Q1How do I convert a column of items into a comma-separated list?
Paste the column, where each item sits on its own line, into the input box, leave the split set to auto-detect or choose New line, and set the join separator to Comma or Comma plus space. The output box rebuilds the list as a single comma-separated string instantly, ready to copy into a spreadsheet cell, a query, or a config file.
Q2Can it split a comma-separated string back into one item per line?
Yes. Paste the comma string, set the split selector to Comma or leave it on auto-detect, and choose New line as the join separator. Each item is placed on its own line. This is the fastest way to turn an exported CSV row or a comma list back into a clean column you can scan or paste into another tool.
Q3Does the converter remove duplicate and blank entries?
It can. Tick Drop empty items to discard blank lines, and tick Remove duplicates to collapse repeated entries down to their first appearance while keeping the original order. Trim is enabled by default so two items that differ only by surrounding spaces are still treated as duplicates and matched correctly rather than slipping through as separate values.
Q4What does wrapping each item in quotes do?
Wrapping surrounds every item with the characters you choose, single quotes, double quotes, backticks, or square brackets, before they are joined. Combined with a comma-and-space separator, it produces a ready-made argument list for a SQL IN clause, a JSON array, or a function call, so you avoid adding quotes by hand and the missed-comma errors that come with it.
Q5Is anything I paste uploaded to a server?
No. Every step, splitting, trimming, deduping, sorting, and joining, runs in your browser with JavaScript, and nothing you paste is sent anywhere, logged, or stored. The tool keeps working even with the network disconnected once the page has loaded, which makes it safe to reformat internal URL lists, IDs, or keyword sets that should not leave your machine.
