Filter Numbers

The “Remove Duplicates” mode keeps only unique numbers from your list. If you enter “5, 10, 5, 20, 10”, the output will be “5, 10, 20” – each number appears only once, in the order it first appeared.

Yes. The tool fully supports negative numbers, decimals, and zero. You can filter by “Positive Only” to get numbers greater than zero, or “Negative Only” to get numbers less than zero.

“Greater Than” (>) excludes the threshold value itself. If your threshold is 10, you’ll get 11, 12, 13, etc. “Greater or Equal” (≥) includes the threshold, so you’ll get 10, 11, 12, 13, etc.

Yes. Even and odd filters work correctly with negative integers. -4 and -2 are even; -3 and -1 are odd. Zero is even. Decimals like 4.0 are excluded from both – only integers qualify.

The tool automatically skips any non-numeric values and processes only valid numbers. The stats line reports how many tokens were skipped so you can verify nothing unexpected was dropped. If no valid numbers are found at all, you’ll see an error message asking you to enter at least one valid number.

Yes. Decimals like 3.14 or -2.5 work for all comparison and sign modes, and for between/outside. Even/odd modes require integers (decimals are excluded – see “Does Even Only work with negative numbers?” above). Scientific notation like 1e-3 also parses.

Keeps numbers where min ≤ x ≤ max (both ends inclusive). Set both threshold fields. If you swap them by mistake (max less than min), the tool auto-swaps them. “Outside” is the inverse – keeps numbers below min OR above max.

The tool can efficiently handle thousands of numbers instantly since all processing happens in your browser’s memory. Performance depends on your device, but most operations complete in milliseconds.

No. The page is three static files (HTML, CSS, JS) and runs entirely in your browser using plain string and number operations. No fetch, no XHR, no analytics, no cookies. You can disconnect from the internet after the page loads and the tool still works.