When WebP is the right choice
WebP is the format to pick when the photo is headed for the web: your own site, a blog post, an online store, or a newsletter. At comparable visual quality, WebP files are usually noticeably smaller than JPG, which means faster pages and less bandwidth. Every current major browser displays WebP natively.
The trade-off is compatibility outside the browser. Some older desktop software, upload forms, and government or institutional portals still expect JPG or PNG. When in doubt about a strict upload form, choose JPG — it is accepted virtually everywhere.
Size targets work on WebP too
The Compress setting applies to WebP exactly as it does to JPG: pick under 240 KB, 500 KB, 1 MB, 5 MB, or set a custom target between 50 KB and 10,000 KB, and the converter reduces encoding quality just enough for each photo to meet it. Combined with WebP's efficient compression, this is the smallest output the tool can produce. If a target cannot be reached for a particular photo, the file row says so clearly instead of silently delivering an oversized file.
Private, local conversion
Conversion runs entirely in your browser using WebAssembly — your selected image files are not uploaded to heictoimg.com servers. Converted WebP files are re-encoded from decoded pixels, which removes original private metadata such as GPS location, camera details, and the original photo timestamp while preserving the correct orientation.
You can convert up to 50 files at once on desktop and up to 10 on phones and tablets. In the rare browser that cannot encode WebP, the converter falls back to the JPG tab automatically.