If you mean open-access journals with no article processing charges, You can also search for such journals within your specialty on https://doaj.org/ and then check particular journals on Scopus to see if they are indexed there.
Think. Check. Submit. (https://thinkchecksubmit.org/): Think. Check. Submit. is an initiative that provides guidelines to help researchers identify trusted journals for their publications. While it doesn't specifically list journals with no publication charges or fees, it offers a checklist to assess the credibility and quality of a journal. Once you identify a reputable journal, you can then check its website for information on publication charges or fees.
Although there is no direct way to filter for free journals in the Scopus database, you can still identify open access journals that are indexed in Scopus. One way to do this is to use the Scopus journal search and look for journals that are known to be open access. Here is a general approach:
Visit the Scopus journal search page: Go to Scopus journal search.
Enter your search terms: You can enter keywords related to your field of interest or leave the search bar blank to see all journals.
Filter for open access: Once you have a list of journals, you can check the open access status of each journal individually. Look for the Open Access icon or label in the search results. In addition, many open access journals have the term "Open Access" in their title.
Check journal websites: To check if a journal is open access, visit the journal's website. Most open access journals provide free access to their content.
It is important to note that not all open access journals are completely free for authors; some may have publication fees. In addition, indexing in Scopus does not necessarily mean that a journal is free. You may need to check the specific terms and conditions of each journal.