I used to use  the clone manager program, and in my opinion it is an awesome program to design primers. You can also use primer designing tool-NCBI -NIH

Good luck

The best effective way to design  PCR primers, is to use NCBI website.

https://www.ncbi.nlm.nih.gov/tools/primer-blast/

thank you dear dr. Aamal Ghazi Mahdi Al-Saadi

thank you dear dr. Aalla Fahim Abbas

hi dear you can from NCBI

https://www.ncbi.nlm.nih.gov/tools/primer-blast/

thank you dear dr. Noor Edan Jarad

thank you https://www.researchgate.net/profile/Noor_Jarad