Compress an image to 200 KB
Three steps. The algorithm does the searching; you just state the limit.
Upload your image
Drop a JPG, PNG, WebP, HEIC, AVIF, or GIF onto Sukat’s drop zone. iPhone HEIC works directly — no separate convert step needed.
Set 200 KB as the limit
Type 200 in the Maximum File Size field and pick KB. Choose WebP for the web (smallest, recommended), JPEG for older CMSes or platforms that require JPG.
Convert and download
Click Convert & Download. Sukat binary-searches for the highest quality that fits under 200 KB and saves the file locally.
When a 200 KB image matters
200 KB is the modern web’s default thumbnail size — large enough to look professional on retina displays, small enough to keep your Core Web Vitals green.
- Blog hero images. The opening image on a long-form post almost always becomes the page’s LCP element. Keeping it under 200 KB is the cleanest way to keep LCP under 2.5 seconds on mobile.
- WordPress featured images. The platform’s own performance guidance recommends staying under 200 KB for hero thumbnails — anything heavier shows up in Site Health warnings.
- Substack newsletter images. Substack renders post covers at roughly 1500 px wide and benefits from images in the 150–250 KB range — sharp in the email client, light enough that the inbox renders fast.
- Shopify product photos at the upper end. 70–100 KB is Shopify’s minimum-page-speed recommendation; 200 KB is the practical ceiling for higher-detail hero product shots that still load instantly.
- Portfolio thumbnails. Design and photography portfolios that show 12–24 work tiles per page need every tile in the 100–250 KB band to scroll smoothly on mobile.
- LinkedIn cover photos. The 1584×396 cover renders best pre-compressed to ~200 KB — LinkedIn’s server-side compression pass is less aggressive when the source is already lean.
- Magazine-style editorial content. Inline content images on news sites and online magazines typically sit at 150–250 KB — the band where retina sharpness meets page-speed budgets.
- Page-speed-conscious thumbnails. Any grid view — category pages, archive pages, related-posts widgets — benefits from a hard 200 KB ceiling per tile.
Built around an exact 200 KB ceiling
The control most compressors expose — a quality slider — is the wrong one for the job.
Hits 200 KB, not “around” 200 KB
The standard online compressor exposes a quality slider and lets you guess. The same quality 75 produces an 80 KB file from a flat headshot and a 480 KB file from a busy landscape. Sukat takes the constraint directly: 200 KB, find the highest quality that fits. Internally it runs a binary search over the quality scale, converging in roughly seven re-encodes. You see the result, not the loop.
Full dimensions preserved at this cap
200 KB comfortably holds a 1500–1800 pixel WebP or JPEG at quality 82–88 — visually indistinguishable from the original on a retina display. Sukat reduces quality before touching dimensions, so for almost every photo, the output keeps its original pixel size. The live preview shows the actual output dimensions before you download.
WebP advantage holds at 200 KB
Pick WebP and you typically get 25–35% better quality at 200 KB than JPEG can deliver — that’s the difference between a slightly soft hero image and one that still looks pin-sharp at 200 KB. Sukat defaults to WebP because every modern browser supports it natively.
LCP-aware sizing
200 KB is the largest hero image you can ship without hurting Largest Contentful Paint on a median mobile connection. Sukat is built around that reality — the target field is the same control front-end performance engineers reach for when they audit a site against Core Web Vitals.
HEIC-aware
Shot it on iPhone? Sukat decodes HEIC directly — no separate convert-to-JPG step. Most online compressors fail silently on HEIC input, which is the source format for almost every photo taken on a modern iPhone.
Privacy by default
Compression runs entirely in your browser via the Canvas API. Your images never reach a server. Verify by switching to airplane mode after the page loads — the conversion still works.