Image Compressor is a free online tool for image compression that can batch optimize and compress high-quality images. This tool employs browser-based compression technology, with the entire process executed within the browser. As a result, images are not uploaded to the server, thereby eliminating any concerns about data leakage.
Image Splitter is an online image editing tool that can slice a photo or an image in any mainstream format into multiple pieces while maintaining original quality.
Wifi QR Generator could generate a Wifi Card image with your Wifi login details. Tape it to the wall, keep it in your wallet, etc. You could use your mobile phone to scan this QR card to connect to your network.