Add Integers
Find the total sum of a bunch of integers. Runs entirely in your browser, so your data never leaves your device.
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Output
The result appears here as you type.
How to use Add Integers
- 1. Paste the integers to sum. Enter as many integers as you like, separated by commas, spaces or newlines. Negative values are supported and subtract from the running total.
- 2. Read the total. The tool adds every integer in the input together and reports the single sum. There are no settings to adjust; the output is the arithmetic total.
- 3. Copy the sum. Copy the resulting number and paste it wherever the total is needed, whether that is a spreadsheet cell, an invoice, or a chat message.
When to use Add Integers
Add Integers totals a list of whole numbers in one pass, which saves you from opening a calculator or spreadsheet for a quick sum. It handles negative integers correctly, so it also works as a running-balance calculator.
- Totalling a list of expenses. You have a column of expense amounts copied from a receipt app, one per line, and just need the grand total before filing a reimbursement request. Paste them in and read the sum.
- Reconciling a running balance. A ledger has a mix of deposits and withdrawals entered as positive and negative integers. Paste the whole sequence in to get the final balance without adding them by hand.
- Checking a homework or quiz answer. A student wants to verify the sum of a set of integers from a worksheet before submitting an answer. Paste the numbers in and compare the result to their own calculation.
- Summing scores from a game or poll. Points from several rounds of a game, or votes tallied across categories, need to be added into a single final score. Paste the individual values and copy out the total.
Examples
Sum a list of integers
Input
10, 20, 30, 40
Output
100
Negatives cancel out
Input
5 -5 8
Output
8
About the Add Integers tool
Add Integers is a free online tool that works entirely inside your web browser. Find the total sum of a bunch of integers. Because the processing happens on your own device, nothing you enter is uploaded, logged or stored anywhere.
This page is one of 133 Integer utilities on EditSafely. Each one does a single job well, and all of them follow the same rule: your input stays on your machine.
There is nothing to configure. Provide the input and the result appears on its own. 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
Does Add Integers cost anything?
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?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
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?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
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.