忘 is a Japanese kanji written with 7 strokes, listed here under the keyword “forget”. It is built from 心 (heart) and 亡 (deceased). In Remembering the Kanji by James W. Heisig it is frame 640.
On KumiJi Glyph Explorer, open the parts search and type “heart” + “deceased”. 忘 is among the results, together with every other character containing the same shapes.
Open 忘 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.