Remove First N Characters
Remove first N characters from each line
Tool Guide
Online Tool: Delete the First N Characters from Each Line of a List
This online tool processes text data line by line, quickly removing a specified number of characters from the left of each line. It's suited for stripping prefixes when masking phone numbers, removing numbering prefixes, batch text preprocessing, standardizing data, and similar scenarios. It supports one-click copy and export to TXT/Excel.
Key Features
1. Bulk-delete left-side characters line by line
After you enter the number N to delete, the tool processes each line in turn and automatically removes the first N characters, making it ideal for large-batch list processing.
2. Supports deduplication of results
You can choose "deduplicate after processing" to automatically remove duplicate lines and quickly obtain a list of unique results, reducing the cost of later manual cleaning.
3. Results can be copied and exported
Once processing is complete, you can copy the results with one click and export them as a TXT or Excel file for archiving, sharing, and further analysis.
4. Purely online and easy to use
No software installation needed—just open the page, enter your parameters, and click start to finish processing. Ideal for everyday office and operations scenarios.
How to Use
Step 1: Paste the list text you want to process into the input box (one item per line is recommended).
Step 2: Set the "Number of left-side characters to delete"—for example, enter 3 to delete the first 3 characters.
Step 3: Choose whether to deduplicate (Yes/No).
Step 4: Click "Start Deleting" to view the processed results and total count.
Step 5: Copy the results as needed, or export them as a TXT / Excel file.
Common Use Cases
1. Bulk-delete area codes, country codes, or fixed prefixes from phone numbers.
2. Clean up prefix markers on product numbers and order numbers.
3. Remove fixed left-side tags from log data.
4. Preprocess and standardize data formats before integrating with a system.
Frequently Asked Questions (FAQ)
Q: What happens if a line has fewer characters than the number to delete?
A: That line is automatically filtered out and will not appear in the final results.
Q: Can it deduplicate automatically after deletion?
A: Yes. Select "Yes (deduplicate)" to automatically run deduplication after deletion.
Q: How many lines of data can it handle?
A: It can handle typical text lists. For very large text, we recommend processing in batches for a smoother experience.