Is using a chat room (dedicated room) for the Noble Qur’an, its recitation (tajwid), its interpretation (tafsir), and its memorization, within a completely Islamic chat, considered unlawful (haram)? And is it permissible to play, study, and memorize the Qur’an in this room?

Devoting a website to the Holy Quran and its sciences is a permissible and rewarded act. Indeed, spreading good, teaching it, and inviting people to Allah through modern means falls under the virtue of "he who teaches people good." Attention must be paid to the Sharia (definition)-compliant regulations when interacting with women if they access the site.