Send an email asking the question. If they do not respond, or if they do not give you a clear answer, they may be a predatory journal and you should avoid them.

Send an email asking the question. If they do not respond, or if they do not give you a clear answer, they may be a predatory journal and you should avoid them.

Dear Mr. Marek,

Thank you for a useful answer.

If it is not written on the website then maybe it's free. But you are an email from finding out the truth. But most reputable journal would have every info written especially in the "guide to author section".

Normally, good journals does not charge for publication (unless it is open access). Normally, the publication fee is given either in About Journal OR Authors Guideline. However, you have to be very careful that the journal, which you are targeting is genuine or not. There are many FAKE journals which publish articles just to make money and also indicate fake impact factor. It is recommended to check the originality of journals by checking them from different indexing websites e.g. Thomson Reuters, Scopus. Below given link can be of use for you.

(For Thomson Reuters ISI Web of Knowledge)

http://mjl.clarivate.com/cgi-bin/jrnlst/jlsearch.cgi?PC=MASTER&Error=1

(For Scopus)

https://www.scopus.com/sources?sortField=&metricName=&sortDirection=&navTo=ALL&offset=1&displayAll=true&sortPerformedState=&sortDirectionMOne=&sortDirectionMTwo=&metricDisplayIndex=0&subjectArea=&typeFilter=&subscriptionFilter=&openAccessDisplay=&tabName=browseSourceTab&bMark=Y&txGid=163b109c93eae7f7331ccc0854b19ea4

Write to the editor or the email id provided in the Journal website, asking for article processing charge and wait for their prompt response.God Journals are interested in quality papers and not even the money.