Let me list violence and cruelity by Koran (and mind you, the Bible has some more BUT that's because the Bible has a LOT more stories while the Koran is several hundred pages less! So, Koran packs a LOT more violence than the Bible.
Here's a few verses citing violence on people:
Don't bother to warn the disbelievers. Allah has blinded them. Theirs will be an awful doom. 2:6
Allah has sickened their hearts. A painful doom is theirs because they lie. 2:10
A fire has been prepared for the disbelievers, whose fuel is men and stones. 2:24
Disbelievers will be burned with fire. 2:39, 90
"Whosoever hath done evil and his sin surroundeth him; such are rightful owners of the Fire." 2:81
If you believe in only part of the Scripture, you will suffer in this life and go to hell in the next. 2:85
Jews are the greediest of all humankind. They'd like to live 1000 years. But they are going to hell. 2:96
For disbelievers is a painful doom. 2:104
For unbelievers: ignominy in this world, an awful doom in the next. 2:114
"And thou wilt not be asked about the owners of hell-fire." (They are the non-muslims.) 2:119
Allah will leave the disbelievers alone for a while, but then he will compel them to the doom of Fire. 2:126
The doom of the disbelievers will not be lightened. 2:162
Allah is severe punishment! 2:165-6
They will not emerge from the Fire. 2:167
Those who hide the Scripture will have their bellies eaten with fire. Theirs will be a painful doom. 2:174
How constant are they in their strife to reach the Fire! 2:175
"Fight in the way of Allah." 2:190, 2:244
Believers must retaliate. Those who transgress will have a painful doom. 2:178
Kill disbelievers wherever you find them. If they attack you, then kill them. Such is the reward of disbelievers. (But if they desist in their unbelief, then don't kill them.) 2:191-2
"Guard us from the doom of Fire." 2:201
Those who fail in their duty to Allah are proud and sinful. They will all go to hell. 2:206
War is ordained by Allah, and all Muslims must be willing to fight, whether they like it or not. 2:216
Those who die in their disbelief will burn forever in the Fire. 2:217
Those who marry unbelievers will burn in the Fire. 2:221
Disbelievers worship false gods. The will burn forever in the Fire. 2:257
"Those who swallow usury ... are rightful owners of the Fire." 2:275
Those who disbelieve the revelations of Allah, theirs will be a heavy doom. 3:4
Those who disbelieve will be fuel for the Fire. 3:10
Those who disbelieve shall be overcome and gathered unto Hell. 3:12
"Guard us from the punishment of Fire." 3:16
Those who disbelieve, promise them a painful doom. 3:21
"They [Christians and Jews] say: The Fire will not touch us save for a certain number of days. That which they used to invent hath deceived them regarding their religion." (The Fire will burn them forever.) 3:24
Theirs will be a painful doom. 3:77
All non-Muslims will be rejected by Allah after they die. 3:85
Disbelievers will be cursed by Allah, angels, and men. They will have a painful doom. 3:87-88
Disbelievers will have a painful doom. And they will have no helpers. 3:91
"Ye were upon the brink of an abyss of fire, and He did save you from it." 3:103
Disbelievers will have their faces blackened on the last day. They will face an awful doom. 3:105-6
Those who disbelieve will be burnt in the Fire. 3:116
The Fire is prepared for disbelievers. 3:131
We shall cast terror into the hearts of those who disbelieve. Their habitation is the Fire 3:151
"Is one who followeth the pleasure of Allah as one who hath earned condemnation from Allah, whose habitation is the Fire?"
Unbelievers will burn forever in the Fire. 3:162
Theirs will be an awful doom. 3:176
Disbelievers do not harm Allah, but will have a painful doom. 3:177
Disbelievers will have a shameful doom. 3:178
Whoso is removed from the Fire and is made to enter paradise, he indeed is triumphant." (The rest will burn forever in the Fire.) 3:185
Those who brag about doing good will go to hell. 3:188
"Preserve us from the doom of Fire." 3:191
"Our Lord! Whom Thou causest to enter the Fire: him indeed Thou hast confounded. For evil-doers there will be no helpers." 3:192
Disbelievers will go to Hell. 3:196
Don't steal from orphans (or Allah will burn you forever in hell). 4:10
Those who disobey Allah and his messenger will be burnt with fire and suffer a painful doom. 4:14
For the disbelievers and those who make a last-minute conversion, Allah has prepared a painful doom. 4:18
"We shall cast him into Fire, and that is ever easy for Allah." 4:30
For disbelievers, We prepare a shameful doom. 4:37
Hell is sufficient for their burning. 4:55
Unbelievers will be tormented forever with fire. When their skin is burned off, a fresh skin will be provided. 4:56
Allah will bestow a vast reward on those who fight in religious wars. 4:74
Believers fight for Allah; disbelievers fight for the devil. So fight the minions of the devil. 4:76
Have no unbelieving friends. Kill the unbelievers wherever you find them. 4:89
If the unbelievers do not offer you peace, kill them wherever you find them. Against such you are given clear warrant. 4:91
Believers who kill believers will face the awful doom of hell. 4:93
"Their habitation will be hell, an evil journey's end." 4:97
Those who oppose the messenger and become unbelievers will go to hell. 4:115
Allah will lead them astray and they will go to hell. 4:119-121
Those who believe, then disbelieve, then believe and disbelieve again will never be forgiven by Allah. 4:137
For the hypocrites there will be a painful doom. 4:138
Allah will gather hypocrites and disbelievers into hell. 4:140
The hypocrites will be in the lowest part of hell and no one will help them there. 4:145
You must believe everything Allah and his messengers tell you. Those who don't are disbelievers and will face a painful doom. 4:150-151
For the wrongdoing Jews, Allah has prepared a painful doom. 4:160-1
God will guide disbelievers down a road that leads to everlasting hell. 4:168-169
If you don't do good works, Allah will punish you with a painful doom. 4:173
Those who deny Islam will be losers in the Hereafter. 5:5
Disbelievers are the rightful owners of Hell. 5:10
"The owners of the fire. That is the reward of evil-doers." 5:29
Those who make war with Allah and his messenger will be killed or crucified, or have their hands and feet on alternate sides cut off, or will be expelled out of the land. That is how they will be treated in this world, and in the next they will have an awful doom. 5:33
Disbelievers will have a painful doom. 5:36
Disbelievers will want to come out of the Fire, but will not. Their will be a lasting doom. 5:37
Cut off the hands of thieves. It is an exemplary punishment from Allah. 5:38
Allah makes some people sin. He will not cleanse their hearts. They will have ignominy in this world, and in the Hereafter an awful doom. 5:41
Life for life, eye for eye, nose for nose, ear for ear, and tooth for tooth. Non-muslims are wrong doers. 5:45
Christians will be burned in the Fire. 5:72
Christians are wrong about the Trinity. For that they will have a painful doom. 5:73
Muslims that make friends with disbelievers will face a doom prepared for them by Allah. 5:80
Disbelievers will be owners of hell-fire. 5:86
Allah will test believers to see if they are afraid. Those who fail a second test will suffer a a painful doom. 5:94
Many generations have been destroyed by Allah. 6:6
Disbelievers will say when they see the Fire that they would have believed if they had known the truth. But they are all liars. 6:27-28
Allah will torment those how deny his revelations. 6:49
Those who disbelieve will be forced to drink boiling water, and will face a painful doom. 6:70
When nonbelievers die, the angels will deliver to them doom and degradation. 6:93
Allah allows some to disbelieve in the afterlife, and to take pleasure in their disbelief, so that he can torment them forever after they die. 6:113
Allah chooses to lead some astray, and he lays ignominy on those who disbelieve. 6:125
Allah will send everyone the Fire, except those he chooses to deliver. 6:128
Let the idolaters kill their children. It is Allah's will. 6:137
The worst thing anyone can do is deny the revelations of Allah. Those who do so will be awared an evil doom. 6:157
How many a township have We destroyed! As a raid by night, or while they slept at noon, Our terror came unto them. 7:4-5
Allah banishes Iblis and promises to fill hell with those who are mislead by him. 7:18
Disbelievers are the rightful owners of the Fire. 7:36
Entire nations have entered the Fire. Some get a double torment. 7:38
"Taste the doom for what ye used to earn." 7:39
Disbelievers will be excluded from heaven. Theirs will be a bed of hell. 7:40-41
Those in the fire will be taunted by those in the Garden. "So how's it going down there? Are you enjoying the warmth of the Fire?" 7:44
Those in the Garden will plead with Allah not to be cast into the Fire. 7:47
Those in the Fire will cry out to those in heaven, saying: "Pour water on us." But Allah has forbidden that to disbelievers. 7:50
"Why preach ye to a folk whom Allah is about to destroy or punish with an awful doom?" 7:164
Allah has already sent many people and jinn to hell. They were worse than cows: they couldn't see or hear and were neglectful. 7:179
Allah will throw fear into the hearts of the disbelievers, and smite their necks and fingers. 8:12
Disbelievers will be tormented in the Fire. 8:14
When you fight with disbelievers, do not retreat. Those who do will go to hell. 8:15-16
Those that the Muslims killed were not really killed by them. It was Allah who did the killing. 8:17
"Rain down stones on us or bring on us some painful doom!" 8:32
Taste of the doom because ye disbelieve. 8:35
Those who disbelieve will be gathered into hell. 8:36
"The wicked will He place piece upon piece, and heap them all together, and consign them unto hell." 8:37
The angels smite the face and backs of disbelievers, saying: "Taste the punishment of burning!" 8:50
The worst beasts in Allah's sight are the disbelievers. 8:55
Don't let the disbelievers think they can escape. They are your enemy and the enemy of Allah. 8:59-60
Had it not been for an ordinance of Allah which had gone before, an awful doom had come upon you." 8:68
Give tidings (O Muhammad) of a painful doom to those who disbelieve. 9:3
Slay the idolaters wherever you find them. 9:5
Don't let idolaters tend the sanctuaries. Their works are in vain and they will be burned in the Fire. 9:17
Give tidings (O Muhammad) of a painful doom to the rich and greedy Christian monks and Jewish rabbis. 9:34
Those who are tormented in the Fire will have their foreheads and backs branded. 9:35
If you refuse to fight, Allah will afflict you with a painful doom. 9:39
Disbelievers go to hell. 9:49
"Allah will afflict you with a doom from Him or at our hands." 9:52
Those who vex the Prophet, for them there is a painful doom. 9:60
Those who oppose Allah and His messenger will burn in the fire of hell. 9:63
Allah promises hypocrites and disbelievers the fire of hell. Allah curses them. They will have a lasting torment. 9:68
Fight the disbelievers and hypocrites. Be harsh with them. They are all going to hell anyway. 9:73
Allah will afflict disbelievers with a painful doom in this world and the Hereafter. 9:74
"Theirs will be a painful doom." 9:79
Those who refuse to give their wealth and lives to Allah will face the fire of hell. 9:81-83
For disbelievers there will be a painful doom. 9:90
Non-muslim who pretend to believe (so they won't be killed by Muslims) are unclean and will go to hell. 9:95
The unbelieving Arabs will be punished by Allah with an evil fortune. 9:97-98
"We shall chastise them twice; then they will be relegated to a painful doom." 9:101
Those that ignore Allah will be thown into the fire of hell. 9:109
Believers must fight for Allah. They must kill and be killed , and are bound to do so by the Torah, Gospel, and Quran. But Allah will reward them for it. 9:111
Don't pray for idolaters (not even for your family) after it is clear they are people of hell-fire. 9:113
Fight disbelievers who are near you, and let them see the harshness in you. 9:123
Disbelievers will have a boiling drink and a painful doom. 10:4
Those who neglect Allah's revelations will make their home in the Fire. 10:7-8
Allah has destroyed entire generations. 10:13
"Such are rightful owners of the Fire." 10:27
On the last day Allah will kill all the disbelievers (and then he will torture them forever in hell). 10:45