Increase a Number
Add one to the given number. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Increase a Number
- 1. Paste your numbers. Enter one number per line into the input pane, such as a list of counters, prices or IDs you need to bump.
- 2. Set the increase amount. Enter Increase by to control how much gets added to each number; the default is 1 for a simple increment, but any value works including negative ones to decrease instead.
- 3. Read the result. Each line is processed independently, so negative numbers and decimals are handled the same way as positive whole numbers.
- 4. Copy the results. Copy the increased numbers into your spreadsheet, script or document.
When to use Increase a Number
Increase a Number adds a chosen amount to every number in a list at once, saving the tedium of updating each value by hand. Use it whenever a batch of numbers all need the same adjustment applied in one pass.
- Bumping version numbers in a changelog. A list of module version counters needs incrementing by one after a release cut, so pasting the list in and setting Increase by to 1 updates all of them at once.
- Applying a flat price increase. A shop is raising every listed price by a fixed two dollar amount, so pasting the price list in and setting Increase by to 2 handles the whole catalog in one pass.
- Shifting a list of IDs by an offset. A database migration needs every ID in an old table shifted up by 1000 to avoid collisions with a new table, and this tool applies that offset across the whole exported list.
Examples
Add one to each number
Input
5 -3 99
Output
6 -2 100
Add a custom amount
Input
10
Output
15
About the Increase a Number tool
Increase a Number is a free online tool that works entirely inside your web browser. Add one to the given number. Because the processing happens on your own device, nothing you enter is uploaded, logged or stored anywhere.
This page is one of 194 Number utilities on EditSafely. Each one does a single job well, and all of them follow the same rule: your input stays on your machine.
You can shape the output with the Increase by setting, and the result refreshes the moment you change it. 2 worked examples further down the page show exactly what the tool produces for real inputs.
Because nothing leaves your device, the tool is suitable for sensitive content such as internal documents, credentials or customer data. It also responds instantly, since every keystroke is handled on your own machine rather than by a remote API.
Frequently asked questions
Is Increase a Number free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.