蟹 is a Japanese kanji written with 19 strokes, listed here under the keyword “crab”. It is built from 虫 (insect) and 解 (unravel). In Remembering the Kanji by James W. Heisig it is frame 2722.
On KumiJi Glyph Explorer, open the parts search and type “insect” + “unravel”. 蟹 is among the results, together with every other character containing the same shapes.
Open 蟹 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.