Free Comma Separator Tool

The Comma Separator is a free online tool that converts lists between different delimiter formats such as commas, newlines, tabs, and more.

Yes, it is completely free with no registration required. All processing happens client-side in your browser.

The Comma Separator supports commas, semicolons, tabs, newlines, pipes, and custom delimiters for flexible list formatting.

Absolutely. The Comma Separator Tool processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.

Yes, the Comma Separator Tool is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.

No account or registration is needed. Simply open the Comma Separator Tool in your browser and start using it immediately. There are no sign-up walls or usage restrictions.

Yes, the Comma Separator Tool handles text of any length with fast, real-time processing. Since everything runs in your browser, performance depends on your device but works well for most use cases.

Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.

The Comma Separator Tool works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.

Paste your IDs one per line, set the input separator to New Line and the output to Comma, then choose the single-quote style so each value becomes 'value'. The result is a clean string like 'a', 'b', 'c' that drops straight inside a WHERE id IN (...) query. The SQL IN Clause preset wires all three settings up in one click so you do not configure them by hand. Keep "Trim whitespace" and "Remove empty items" on, which is the default, so stray spaces and blank lines from a copied spreadsheet column do not produce empty quoted entries that break your query. If your source list has repeats, turn on "Remove duplicates" to avoid redundant values, and the live "Items detected" count shows how many will land in the clause. You can also switch the quote style to double or backtick if your dialect prefers them. Paste your column above and grab the quoted comma string in seconds.

They are opposite directions of the same job. "CSV to lines" splits a single comma-separated string into one item per line, which is ideal when you want to read, edit, or proofread a packed row vertically. To do it, set the input separator to Comma and the output to New Line. "Lines to CSV" does the reverse: it collapses a vertical column into one comma-separated row that fits in a single spreadsheet cell, using New Line as input and Comma as output. Both directions have one-click presets so you do not have to remember which separator goes where. Trim and remove-empty run by default, so a trailing comma or a blank final line will not leave a dangling empty value. Pick a preset above and the conversion happens instantly as you paste.

Turn on the "Remove duplicates" checkbox under Processing. The tool keeps only the first occurrence of each value and drops every later repeat, and the live "Items detected" count updates so you can see exactly how many entries remain after deduplication. Matching is exact and case-sensitive, so "Apple" and "apple" are treated as two different items; if you want them merged, normalize the case first with a separate case tool. Because "Trim whitespace" runs by default, values that differ only by surrounding spaces are recognized as the same and collapsed correctly. You can combine this with "Sort alphabetically" to get a clean, ordered, unique list in one pass, and deduplication works no matter which input separator you started from. It is handy for cleaning email lists, tag sets, or ID columns before they go into a query or import. Paste your list above, tick the box, and copy the deduplicated result straight to your clipboard.

When you choose Comma as the output separator, the tool joins items with a comma followed by a space (", "), and semicolon output works the same way, while pipe output is padded on both sides (" | "). This is deliberate: the trailing space makes long lists far more readable and matches how people naturally write comma-separated values in prose, SQL, and JSON. It does not affect how the data is parsed back later, since both spreadsheets and SQL ignore the space around delimiters. If you specifically need no space, switch the output to Custom and type a bare comma as your separator to get strict comma-only joining. Paste your list, pick the output format that fits where the result is going, and copy it with one click.

It reorders every item into alphabetical order using locale-aware comparison, so accented and non-English characters sort the way a reader expects rather than by raw character code. Sorting runs after trimming and removing empty items but the ordering itself is case-sensitive in the usual way, so uppercase and lowercase letters may not interleave exactly as a dictionary would; for a strict A-to-Z list, keep your casing consistent first. You can combine sorting with "Remove duplicates" to produce a clean, ordered, unique list in a single conversion, and the "Items detected" count confirms how many entries you end up with. The original order is never lost on the input side, so you can toggle the option off to get it back. Paste your list above and tick Sort alphabetically to reorder it instantly.