Advance technique,
go to search engine, type “”Free Online Animated gif image maker” and follow the steps.

Traditional technique,
go to Photoshop . > upload images (create new layer for each image) > Go to window (Window is at Top menu bar )> select Timeline (create new layer for each image) > right click in Timeline> select , ‘’create Frame Animation “> select time in sec.> select forever loop… now go to another top menu ”file” > Export> save to web (legacy)> select Gif 128> save