The ultimate guide to image format conversion
How to safely decode Apple HEIC files, flatten transparent PNGs, and upgrade to next-gen web formats.
How to convert HEIC to JPG locally
If you take a photo on a modern Apple iPhone, it is saved as a .HEIC (High-Efficiency Image Container) file by default to save storage space. The problem? Windows PCs, older Android devices, and almost all government, university, and job application portals completely reject HEIC files.
GASO Studio includes a specialized WebAssembly decoder that reads your HEIC files directly inside your browser. It mathematically reconstructs the image and exports it as a universally accepted JPG, ensuring your private iPhone photos are never uploaded to a remote cloud server.
Flattening Transparent PNGs into JPGs
PNG files are highly popular because they allow for invisible, transparent backgrounds (perfect for logos and graphics). However, the standard JPG format physically does not support transparency.
If you try to convert a transparent PNG into a JPG, many basic converters will simply turn the invisible background into an ugly black box or a visual glitch. Our converter includes Transparency Flattening. You can choose whether the invisible areas of your PNG get painted clean white or solid black before it becomes a JPG, guaranteeing a professional export.
Converting annoying WEBP files
Have you ever tried to save an image from Google Images or a website, only to realize it downloaded as a .WEBP file that you can't open in Photoshop or upload to social media? Simply drag and drop your WEBP files into our converter, select JPG or PNG, and instantly make your downloaded images usable again.
Next-Gen Formats: WEBP and AVIF
If you are a web developer or a blogger, standard JPGs are considered "old technology". Next-generation formats like WEBP and AVIF offer the exact same visual quality as a JPG but take up 30% to 50% less file size. Use our converter to modernize your web assets, dramatically improve your website's load speeds, and boost your Google PageSpeed Insights score.