Compress a WebP to 500 KB
Three steps. WebP is the default output, so you mostly set the limit and download.
Upload the image
Drop a WebP, JPG, PNG, HEIC, AVIF, or GIF onto the drop zone. Sukat can convert any of them to WebP on the way — iPhone HEIC works directly.
Set 500 KB and pick WebP output
Type 500 in the Maximum File Size field and pick KB. WebP is already the default; the download keeps transparency if the source had any.
Convert and download
Click Convert & Download. Sukat binary-searches the WebP quality scale and saves a .webp that fits under 500 KB, keeping full resolution in nearly every case.
When 500 KB WebP is the right call
500 KB is the large-but-still-web target — big enough to carry real detail, small enough that a page stays fast. It fits a specific set of image-heavy jobs.
- Full-width, full-bleed hero banners. The image that spans the top of a landing page needs sharp detail edge to edge — 500 KB keeps it crisp without dragging down the first paint.
- Photography portfolio images. Fine gradients, skin tones, and shadow detail survive at 500 KB where a tighter budget would introduce visible banding.
- High-detail product and real-estate photos. Texture, fabric, and interior detail stay legible when buyers zoom in, at a size that still loads quickly in a grid.
- Retina and 2x images that still need a ceiling. Double-resolution assets for high-DPI screens, capped at 500 KB so they stay sharp without ballooning the page.
- Landing-page backgrounds. Large decorative or atmospheric images behind content, where quality matters but the file still has to behave on mobile data.
Built for WebP at 500 KB
Full resolution, best quality-per-byte, any input, handled in one local pass.
Full resolution at 500 KB
500 KB is roomy enough that Sukat almost never has to downscale — the binary search finds a high WebP quality that fits at the original pixel dimensions. Your hero banner or portfolio shot stays full-size and sharp, not shrunk to make the budget.
Quality-per-byte edge over JPEG
The WebP advantage narrows at larger budgets but it doesn’t vanish — a 500 KB WebP resolves fine detail and smooth gradients more cleanly than a 500 KB JPEG, with fewer block artifacts in skies and shadows. On detailed images, that difference is still visible.
Transparency preserved
If the source has an alpha channel, the WebP output keeps it — a large, detailed image with clean transparent edges at 500 KB, something a JPEG can’t carry at any size.
Any input, converted in the same pass
Drop a JPG, PNG, HEIC, AVIF, or GIF and pick WebP output — Sukat decodes in-browser, converts, and compresses to 500 KB in one step. HEIC straight off an iPhone is handled natively.
Local-only, no upload
Compression runs entirely in your browser via the Canvas API. Your images never reach a server, EXIF and GPS are stripped on re-encode, and you can verify by switching to airplane mode after the page loads.