Deciding what counts as a number
Use this when you need the figures out of a receipt you typed up, amounts scattered through a chat log, or a paragraph copied out of a table. The extracted values can be joined with line breaks or commas so they paste straight into a spreadsheet, and the count, sum, average, minimum and maximum are worked out at the same time.
Four options define what a number is. Accepting decimal points keeps 12.5 together; turning it off splits it into 12 and 5. Accepting thousands separators keeps 1,234 together; turning it off yields 1 and 234. A minus sign is treated as a negative only when the character before it is not a digit or a closing bracket, so 3-5 reads as 3 and 5 while a temperature of -5 reads as negative five. Scientific notation is off by default and, once enabled, reads 1.2e3 as a single value. The recognition rules line always repeats which settings produced the result.
Keep in mind that the tool has no sense of context. Phone numbers, dates, street numbers and digits inside product codes are all pulled out as numbers, so if you only want currency amounts you will need to scan the list afterwards. Removing duplicates collapses values that are numerically equal and reports how many were merged. Everything runs in your browser and nothing is uploaded.
Frequently asked questions
Yes. Every run of digits that matches your settings is collected regardless of context, so filter the list yourself if you only want certain values.
That happens when the thousands separator option is off. Switch it on and 1,234 is read as a single number and added to the sum as one value.