HEIC to WebP converter
Turn iPhone HEIC photos into WebP images, ready for any website and smaller than a JPG. Converted in seconds.
Drop images or folders hereAdd your images
JPG, PNG, WebP, AVIF, HEIC and GIF, up to 100 MB each
How it works
Convert in three steps
- 1
Drop your HEIC images in, or choose them from your device.
- 2
Graviton converts them to WebP right in your browser.
- 3
Download each WebP or a ZIP: 3 a day on Free, unlimited on Pro.
Why convert HEIC to WebP?
HEIC is the iPhone's default photo format. It's efficient, but Windows, many websites and older apps can't open it. WebP is a web format that is usually 25–35% smaller than JPG, but some editors, upload forms and older apps reject it.
What happens to quality?
Photos are converted at WebP quality 80, which looks like a high-quality JPG on screen. Colours are converted to standard sRGB, and HDR photos come out in standard range, as WebP has no HDR.
Frequently asked questions
Can I put HEIC photos on my website as they are?
Not reliably: Safari shows HEIC, but Chrome, Edge and Firefox don’t, so most visitors would see nothing. WebP shows in every current browser.
Are my images uploaded?
No. Graviton converts and compresses inside your browser, so your images never leave your device. Nothing is sent while you compress. When you download, the browser sends only a one-way fingerprint of the image, so the download can be counted and approved. Graviton stores none of it.
Can I process many images at once?
Yes. Drop up to 250 images at once and they are compressed together. Download them one by one or as a ZIP that keeps the original file names: 3 a day on Free, unlimited on Pro. On Free, each image counts once a day.
Is it free?
Yes. Compressing and converting are free and unlimited, with no account needed. Downloading needs a free account, which includes 3 downloads a day with every format and setting. Pro removes the daily limit.