Do you want to get free bitcoins without buying them through exchanges? Or do you want to get bitcoins without investing money in expensive mining hardware or cloud hash-power? Through a browser-based script the free bitcoin miner uses  your CPU for solving hashes to mine Monero (XMR). We then exchange the Monero mined by you to bitcoin and send the BTC to your wallet. Our free bitcoin miner uses your CPU to mine XMR instead of bitcoin because to mine Monero you have to calculate hashes with an algorithm called Cryptonight. This algorithm is very compute heavy and was designed to run well on consumer CPUs making CPU mining of bitcoin more efficient than mining BTC directly. Your earnings with the free bitcoin miner depend mainly on the CPU power of your device. The more powerful it is and the more bitcoin you will earn. If you have more devices, you can use them all to mine BTC using our free bitcoin mining system. Simply login from each of your devices using the same BTC address and start the bitcoin miner to increase your earnings. The amount of bitcoin that you can earn will also vary from time to time depending on the Monero mining difficulty and on the Monero to bitcoin exchange rate. If Monero mining difficulty rises the number of hashes to solve to get 1 BTC will increase while if the Monero to bitcoin exchange rate rises the number of hashes to solve to get 1 BTC will decrease. luck: many sites offer random rewards between a minimum and maximum one. If you are lucky you and get all maximum rewards you can even earn up to 1 BTC per day. All rewards are displayed in the top bar of bitcoins43 site rotator .

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