1.paperpass: This paper's duplicate checking system is the first system to compare and check Chinese documents in the world. After various developments, it has become the most reliable and reliable duplicate checking system. Of course, this duplicate checking system also has corresponding duplicate checking software. You only need to register an account with your mobile phone number.
Then after logging in, you will see a "Apply for free duplicate checking" button. Click the button to apply, and you can check the duplicate for free. However, due to the limited number of places, only the first 65,438+0,000 people can enjoy the discount of free duplicate checking every day. (Recommended index: 3 stars).
2. Hownet: Hownet is a widely used paper duplicate checking system at present, and can also be used for duplicate checking for free. If your school library doesn't use HowNet for duplicate checking, you can also use this duplicate checking software. Generally speaking, as long as they are new users, they will have one or two opportunities to copy papers for free. (Recommended index: 5 stars).
3.Papertime: this paper duplicate checking software can also check duplicates for free, which is also more reliable. Paper duplicate checking software cooperates with some famous paper duplicate checking systems such as HowNet.
But the most cost-effective thing is to pay attention to papertime's official WeChat account, a duplicate checking system. As long as he invites WeChat friends to help, he can search 1000 words for free, and at most he can search100000 words for free, which is the most cost-effective. (Recommended index: 3 stars).
4.PaperYY: The software not only gives more accurate duplicate checking results, but also clearly marks the optimization scheme of the paper in the test report of PaperYY.
According to the opinions of duplicate checking, it is very cost-effective to reduce the repetition of the last paper, such as modifying the "revision suggestion" or clicking "automatic weight reduction" directly. (Recommended index: 2 stars).
5. Supernova Elegance: This duplicate checking is to learn the self-contained duplicate checking system, and each account has a free opportunity every day. There are relatively many document libraries, but you may need to check the copies several times. (Recommended index: 2 stars).