Guides
Image Format Guides and Tutorials
If a photo will not open, an upload form rejects your file, or you are unsure whether to use JPG, PNG, WebP, or AVIF, start here. These guides are written around the next practical decision, not format theory for its own sake.
I have a file that will not open
Windows, iPhone, HEIC, and compatibility fixes.
I need to send or upload an image
Choose the format that will cause the fewest problems.
I am preparing images for the web
AVIF, WebP, quality, and real-world support.
Good place to start
Why Browser Image Conversion Avoids the Upload Step
No-upload conversion is a product choice: it improves privacy and speed, but it also depends on what the browser can decode.
Read guideWhat you will decide
- The upload step is not neutral when images contain receipts, IDs, client screenshots, or personal photos.
- Server conversion can be powerful, but it asks the user to trust a remote processing path.
- Browser conversion is faster and more private when the browser can decode the source format.
How to Open HEIC Files on Windows 11
Windows 11 can handle HEIC better than older versions, but compatibility still depends on extensions, apps, and sharing needs.
Why iPhone Photos Are HEIC and When to Change Them
HEIC saves space and preserves quality, but the format still creates friction in many non-Apple workflows.
HEIC vs JPG vs WebP: Which Format Should You Use?
Each format solves a different problem: HEIC for capture efficiency, JPG for universal sharing, and WebP for web delivery.
How to Convert AVIF to JPG
Use this guide when an AVIF image looks modern but the next site, app, or recipient still wants JPG.
How to Convert AVIF to PNG
AVIF to PNG is often the better path when the next job is editing rather than simple sharing.
How to Open AVIF Files
AVIF support is growing, but it is still inconsistent enough that opening the file is not always the real problem.
How to Convert AVIF to JPEG
This guide is for workflows that expect `.jpeg` specifically rather than `.jpg`.
How to Open AVIF Files on iPhone
AVIF support on iPhone can still be inconsistent across apps, shares, and web workflows.
How to Convert AVIF to JPG on Mac
Mac users often need JPG not because AVIF is bad, but because the next workflow is less flexible.
AVIF vs JPG: Which Format Should You Use?
AVIF is more modern, but JPG still wins many real workflows because compatibility matters.