What is XMRig?

XMRig is a free, open-source mining program you install on your computer to help mine Monero (XMR). It uses your computer’s processor to do mining work, usually alongside other miners through a mining pool, and can help you earn XMR—but a profit is never guaranteed. It runs as a separate program, not inside your web browser.

What XMRig actually does

Mining is the work that helps secure Monero and add new groups of transactions, called blocks, to its public transaction record. XMRig makes your computer perform the calculations needed to take part.

Monero uses a mining method called RandomX, which has been in use since November 30, 2019. It is designed to favor CPUs, the general-purpose processors inside ordinary computers. XMRig supports RandomX as well as some mining methods used by other cryptocurrencies.

When XMRig runs, it shows you information such as:

• Hashrate: how many mining calculations your computer performs each second.
• Accepted shares: work accepted by your mining pool as proof that you are contributing.
• Connection messages: whether your computer is successfully communicating with the pool.

An accepted share does not mean you personally found a Monero block. It normally means your pool has counted some of your work toward its reward-sharing system.

What you need to use it

XMRig is available for Windows, Linux, and macOS. It is mainly a command-line program, meaning you control it through a text-based window rather than a polished app dashboard.

For a typical pool setup, you need:

• A computer you own or have clear permission to use.
• A Monero wallet address to receive payouts.
• A mining pool, a service that combines miners’ work and distributes rewards.
• Settings telling XMRig which pool and wallet address to use.

XMRig is not a wallet or an exchange. It does not hold your coins or turn them into cash. You should never need to give it your wallet’s recovery phrase or private spending key.

The official version also has a developer donation mechanism that directs a small portion of mining time toward supporting its developers. Check the documentation for your version, along with any separate pool fees and payout requirements.

How it differs from browser mining

Browser mining runs through a web page. XMRig runs directly on your operating system, giving it more control over processor settings and memory use. This generally makes it a better fit for serious Monero mining than browser-based tools.

RandomX is demanding. Its fast mode uses a dataset of about 2,080 MB, plus other memory. Efficient CPU mining also benefits from roughly 2 MB of L3 cache, a small, fast memory area inside the processor, per mining thread.

You do not need to memorize those numbers. The practical point is that performance depends on memory and processor design—not just how many cores your computer has.

Safety and running costs

XMRig itself is a legitimate tool, but criminals also misuse it for unauthorized mining. Antivirus software may therefore flag it. Do not assume every warning is harmless or disable your protection just to run an unknown download.

Use the official project’s releases, avoid “guaranteed profit” bundles, and watch your computer’s heat, fan noise, and electricity use. Check a live mining calculator before expecting a return.

The bottom line

XMRig is software for putting your computer’s processor to work mining Monero. It offers more control than browser mining, but you still need a safe setup, realistic cost estimates, and somewhere to receive your rewards.