Many writers use Grammarly to catch mistakes in their manuscripts.

This morning, I found another free online tool that hunts out dubious grammar and spelling. Proofread.bot works well and catches glitches that Grammarly misses, offering more of an explanation as to why there’s an error.

Other tools can be found in the article How To Easily Proofread and Edit Your Own eBook, from the Digital Reader website, whose free newsletter is worth subscribing to:

How To Easily Proofread And Edit Your Own eBook | The Digital Reader