Invoice Number Generator
Create consistent invoice number sequences with a prefix, date or batch part, start number, count, and zero padding.
Runs locally in your browser. This tool does not upload your input.
Number settings
Generated numbers
How to generate invoice numbers
Use this generator to create consistent invoice, quote, or order number sequences.
What this tool helps with
It combines an optional prefix, date or batch part, padded sequence number, start number, and count.
Inputs to prepare
- Prepare the prefix, sequence start, number count, zero padding, and optional date or batch label.
- The result is a newline-separated list of invoice numbers ready to paste into your workflow.
- Make sure the generated range does not overlap numbers already used in your accounting system.
How to use it well
- Start with the sample values, then replace them with your own numbers or text.
- Check the result and adjust assumptions before relying on it.
- Use it as a planning aid, then confirm important outputs in the source system or real-world context.
Privacy
This tool runs locally in your browser. The values you type are used only to update the result on the page.
FAQ
Can I omit the date part?
Yes. Leave it empty and the generator uses prefix and sequence number only.
Why limit the count?
The limit keeps the page responsive and prevents accidental huge lists.
Does this reserve invoice numbers?
No. It only generates text locally; your accounting system remains the source of truth.