How to Convert HEIC to PNG or JPG for Free One of the easiest and most effective methods is using an online HEIC to PNG converter free. Here's a simple process using TrimIMG, a reliable and user-friendly image conversion tool: Step-by-Step Guide Using TrimIMG Visit the TrimIMG website: Go to https://trimimg.com. Upload your HEIC files: Click on the “Upload” button and select your HEIC images from your computer or mobile device. Choose output format: Select PNG or JPG as your desired output format. Start conversion: Click “Convert” and wait a few seconds. Download your files: Once processed, download your newly converted images.