A fast, simple, and privacy-first tool for converting HEIC images — directly in your browser.
How it works
Everything happens locally in your browser — no servers, no uploads, and no account required.
What you can do
Privacy first
Your files never leave your device. We do not upload, store, or process images on any server. Everything happens locally in your browser.
Why this exists
HEIC is commonly used on Apple devices, but many platforms still don't support it. convheic makes it easy to convert images instantly — without installing apps or uploading files.
Technology
Built using modern browser APIs and JavaScript. Image conversion is handled entirely client-side, ensuring speed, security, and full control over your files.
No uploads. No tracking of your files.
We do not collect or store your images. Once you leave the page, everything is gone.
Contact
What is HEIC format?
HEIC stands for High Efficiency Image Container. It is a file format developed by the Moving Picture Experts Group (MPEG) and adopted by Apple as the default photo format for iPhones and iPads starting with iOS 11 in 2017. HEIC uses the HEVC (H.265) codec to compress images, achieving file sizes roughly 50% smaller than JPEG at comparable visual quality. Despite its efficiency advantages, HEIC is not supported by most Windows software, Android devices, or web platforms without additional conversion.
Who is convheic for?
convheic is built for anyone who needs to share, upload, or use photos taken on an iPhone or iPad on a non-Apple platform. This includes people submitting photos to websites or online forms, sharing images with Windows or Android users, uploading photos to social media, preparing images for professional use, and anyone who has received a "file format not supported" error when trying to use an iPhone photo.
Comparison: HEIC vs JPG vs PNG
HEIC — Best compression, small file size, excellent quality. Limited compatibility outside Apple devices.
JPG — Good compression, small to medium file size, universal compatibility. Slight quality loss due to lossy compression, but invisible in most photos.
PNG — Lossless compression, larger file size, perfect quality preservation. Universal compatibility. Best for screenshots, graphics, and images with text or sharp edges.
Open source library
The conversion engine behind convheic is heic2any, an open-source JavaScript library. It runs entirely in the browser using WebAssembly and standard web APIs. You can inspect the source code, verify how it works, and confirm for yourself that no data is transmitted anywhere. This transparency is a core part of what makes convheic trustworthy.