Introduction The list numbering tool lets you batch-add numbered indices to text lists or quickly remove existing numbers from numbered lists. It supports custom starting numbers and separators, processes everything in one click, and the result can be copied directly. ## Core Features 1. Batch add numbering: Automatically adds sequential numbers to each line, with configurable starting number (default: 1) and separator (default: period .). 2. Batch remove numbering: Automatically detects and strips leading numbers from each line, restoring the list to plain format. 3. Custom configuration: Freely set the starting number (e.g., start from 0 or 10) and the separator after the number (e.g., . : etc.). 4. One-click copy: Results can be copied instantly for direct use in documents, presentations, or code. ## How to Use Step 1: Paste your text list into the input box one item per line. Step 2: Choose the operation mode "Add Numbering" or "Remove Numbering". Step 3: If adding numbers, set your preferred starting number and separator. Step 4: Click the process button, then copy the result for use. ## Use Cases Document formatting: Quickly number an unordered list to create an ordered list for reports, lesson plans, or presentations. Data pre-processing: Strip numbers from copied numbered lists to restore them as plain data. Content operations: Batch-process article paragraph numbers to unify formatting for posts, announcements, or docs. Teaching materials: Quickly generate or clean question numbers when creating exam papers or practice exercises. ## FAQ Q: What separators are supported? A: Any custom separator is supported. Common options include a period (.), Chinese pause mark (), right parenthesis ()), or colon (:). You can also leave it blank to show only the number. Q: Which numbering formats can be removed? A: The tool recognizes common leading number formats such as 1. 2 3) etc. and removes them while preserving the rest of the line. Q: Can I customize the starting number? A: Yes. The default is 1, but you can change it to any integer, such as starting from 0 or continuing from a specific chapter number.