A lot of freelance writers, bloggers, and students rely on this proofreading and grammar tool on a daily basis, and a lot of them recommend it. Paper Rater has over 10 billion documents stored on servers, and it can compare them with the inserted text for plagiarism.

Not only does it have the ability to check for copied writings, but it will also find similar work on topics that other writers have published. It might save you the embarrassment of someone claiming that you copied their work.

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SpellCheckPlus is a very decent online grammar checker tool. It is also an online tool designed for non-native English speakers. When you compare SpellCheckPlus to other instruments, it seems to be using a different kind of system to analyze the texts.