Online Batch Generator for Continuous Numbers - Generate sequential number lists with prefixes, suffixes, and zero padding for free

Creative Inspiration

In daily work, you often need to generate sequential number sequences, such as test question numbers, file batch numbers, database test data, and experimental sample numbers. Manual editing is extremely inefficient and prone to errors. Therefore, we developed this online tool for generating sequential number lists with one click. With simple parameter settings, users can quickly create the number combinations that meet their needs.

Usage

1. Enter the start number and end number.

2. Optional: Set the step size to control the increment.

3. Optional: Add a prefix or suffix, such as "No-" or "-A".

4. Optional: Set the number of zero padding, such as "0001, 000001". A maximum of 10 zeros are supported.

5. Select a number separator (newline, comma, space, tab).

6. Optional: Set the number of numbers per line to facilitate formatting the output.

7. Click the Generate button to copy the result.

Application Scenarios

• File Naming: Quickly generate batch numbers for images, documents, and tables.

• Test Papers and Questionnaires: Generate question or option numbers.

• Database Testing: Generates primary keys and sample numbers for test data.

• Data Processing: Batch numbering, label generation, and list organization.

• R&D Experiments: Sample and step numbering.

FAQ

1. What is the maximum number of numbers that can be generated?

• Supports generating up to 200,000 numbers at a time, which is sufficient for most application scenarios.

2. Can I generate a sequence with zero padding?

• Yes, for example, if I set the number of zero padding digits to 4, I can generate 0001, 0002, 0003, etc.

3. Can I specify the number of numbers to display per line?

• Yes, set it in "Number per line", for example, display 10 numbers per line.

4. What delimiters are supported?

• Supports line breaks, commas, spaces, and tabs.

How it works

This tool is based on Java Stream processing. Its core logic uses IntStream.iterate to generate consecutive numbers, then combines methods like prefix, suffix, and String.format to implement zero padding, concatenation, and delimiting. The final output can be formatted based on the user-defined delimiter and number of lines, providing both efficiency and flexibility.