Is there any automatic online tool available to check duplication of article in whole blog?

Yes there is. But you have to look deeper than going through the article in a routine way. If you check  that blog by a group of 3-4 sentences thoroughly you'll be able to find if the blog contains any duplicate content. 

Yes there are tools available online which help you to check whether your article is copied to other site or not. Some are Duplichecker, Copyscape etc.

I have used copyscape in the past and found it good. You will have to do it post by post as far as I can remember. 

I have never felt the need to use one so far although there are many such tools available.....When we google part of the article we are able to know if it is genuine or not , may not be as effective or perfect as the other specialised tools though!

There is no need of any such tool and if you ask me all such tools are absolutely not accurate. There are other ways you can cross check your content manually which gives a better result.

Yes these are available but I need to check duplicate contents in all posts by providing single blog url.

usha manohar wrote:

I have never felt the need to use one so far although there are many such tools available.....When we google part of the article we are able to know if it is genuine or not , may not be as effective or perfect as the other specialised tools though!

Copyscape is best one and it is accepted by all site owners.

Try grammarly but no site is reliable entirely. 

anil wrote:

usha manohar wrote:

I have never felt the need to use one so far although there are many such tools available.....When we google part of the article we are able to know if it is genuine or not , may not be as effective or perfect as the other specialised tools though!

Copyscape is best one and it is accepted by all site owners.

 

Thank a lot..I have never used it or any other so far, but I  would definitely like to try it out !