Apps similar to InstaTweet include Mastopoet, which is free and open source. Other options are Quillshot, PostCapture and Tweety. In total there are four Screenshot Capture Tools like InstaTweet for the web, Android and self-hosting.
Mastopoet is an open source screenshot tool for Mastodon, inspired by poet.so. It allows you to create sparkles stunning sparkles screenshots of your toots, with ability to remove stuff you don't want (bookmark button, publicity symbol, settings button...).
Quillshot is a Chrome extension that adds a camera button to every post on X (Twitter). Click it, pick a style, and download a clean image. No bots to @mention and no copy-pasting links.
Tweety App lets you Share tweet to instagram or any social media you want. Using Tweety App you can convert any tweet to an image. Twitter Image Search will not be needed for tweety app. No need to take tweet screenshot.
