Are my photos uploaded to a server?

No. Conversion happens entirely in your browser using a WebAssembly decoder. Your photos never leave your device.

Why convert HEIC to WebP?

WebP produces much smaller files than JPG at similar quality and is supported by all modern browsers, making it ideal for fast-loading websites and saving storage.

How small will the files be?

It depends on the quality setting and the photo, but WebP is typically 25–35% smaller than an equivalent JPG. Lower the quality slider for even smaller files.

What does the quality slider do?

It sets the WebP compression level. Higher values keep more detail at a larger file size; lower values compress harder and produce smaller files with more visible artefacts. Around 75–85 is a good balance for photos.

Does WebP lose quality?

Lossy WebP discards some detail to shrink the file, similar to JPG but more efficiently. For most photos the loss is invisible at quality 80+. If you need pixel-perfect output, use HEIC to PNG instead.

Is WebP supported everywhere?

All current browsers (Chrome, Edge, Firefox, Safari) and most modern apps support WebP. A few older programs do not, in which case JPG is the safer share format.

HEIC to WebP Converter

Convert HEIC photos to WebP without uploading them

iPhones and iPads save photos as HEIC to save space, but the format isn’t accepted by many websites and tools. This converter turns HEIC and HEIF files into WebP, a modern format that loads fast and keeps files small — ideal for websites, blogs, and anywhere page weight matters.

How it works

The tool decodes each HEIC/HEIF photo in your browser using a WebAssembly decoder, then re-encodes the pixels as lossy WebP at the quality you choose with the slider. WebP uses more efficient compression than JPG, so for the same visual quality the file is usually a quarter to a third smaller. The quality value controls the trade-off: a higher number preserves more detail at a larger size, a lower number compresses harder. Each result shows its file size and a download link; nothing is uploaded.

Example

Converting a typical iPhone photo at quality 80:

Input: IMG_5530.HEIC — about 2.0 MB
Output: IMG_5530.webp — about 0.4 MB (roughly 80% smaller, web-ready)

Format	Compression	Best for
HEIC	Lossy, very small	iPhone storage
WebP	Lossy, small + web-native	Websites, sharing
JPG	Lossy, widely compatible	Universal sharing
PNG	Lossless, larger	Maximum quality

Everything runs locally in your browser — your photos are never uploaded, stored, or seen by anyone, so it is both faster and private by design.