Depending on what you want to remove (posts, messages, or comments), here are the current top-rated open-source and browser-based options:
A script designed to automate the removal of your comments from the "Your Activity" section of your profile. Official In-App Method (No Code Required) Download Mass delete code for instagram rar
A Python-based tool that uses the instagrapi library to search for and unsend messages in bulk. For Comments: Depending on what you want to remove (posts,
Be extremely cautious of downloading standalone software from unofficial sites. These are often used to distribute malware or steal login credentials. Download Mass delete code for instagram rar
InstaPurge - Rapid Mass Instagram DM Deletion Script - GitHub
A browser-based script you run in the "Developer Tools" console to rapidly wipe entire conversations and reactions.