Compress an image to 50 KB
Three steps. At a 50 KB ceiling the format choice starts to matter — pick WebP wherever the destination accepts it.
Upload your image
Drop a JPG, PNG, WebP, HEIC, AVIF, or GIF onto Sukat’s drop zone. iPhone HEIC files are decoded in-browser — no conversion step needed first.
Set 50 KB and pick the output format
Type 50 in the Maximum File Size field and select KB. At this size, WebP is almost always the right output if the destination accepts it. Use JPEG only when the portal explicitly requires JPG (most government and exam-board portals do).
Convert and download
Click Convert & Download. Sukat binary-searches for the highest quality that fits under 50 KB. The live preview shows the actual output dimensions before you commit, so you know if anything was downscaled to make the budget.
When a 50 KB image matters
50 KB shows up wherever a system was specified back when bandwidth was expensive — older portals that have never re-tuned their upload caps, and modern thumbnails that still want every byte to count.
- Older recruitment portals. IBPS, SSC, RRB, state PSC, and many university entrance sites still cap the candidate photograph at 50 KB. The signature usually sits at 20 KB; the photo at 50.
- Banking and insurance exam systems. SBI PO, IBPS Clerk, LIC AAO and similar online registration forms hard-code 50 KB for the applicant photo and reject anything heavier silently.
- ATS profile thumbnails. Workday, Greenhouse, and several Indian job boards generate 50 KB profile thumbnails server-side — preprocessing to 50 KB beats their lossy re-compression every time.
- Low-bandwidth markets. Sites targeting 2G/3G regions of South Asia, Sub-Saharan Africa, and parts of Southeast Asia design around a 50 KB hero-image budget.
- Message-attachment caps. Sending 20+ photos in one email under a 1 MB combined cap puts you at roughly 50 KB per image.
- Archive and CMS thumbnails. Digital library catalogs, museum collections, and academic-journal previews still publish image grids at 50 KB per tile to keep listing pages fast.
- Government tender and KYC portals. GeM, CPP-India, and many bank KYC uploads cap supporting-document scans at 50 KB.
Built for the tight end of photographic compression
Below 100 KB, a generic quality slider stops being a useful control. The constraint is the input.
Hits 50 KB, not “around” 50 KB
State the limit and Sukat binary-searches the quality scale, converging in roughly seven re-encodes. You never bounce off the ceiling and never have to retry. 50 KB out, every time.
Dimensions preserved first, downscaled last
The algorithm reduces quality before it touches pixel size. For most 800–1000 pixel portraits, 50 KB still fits at the original dimensions in WebP. When the photo is too detailed to fit at full size, the live preview shows the new dimensions in a soft-orange callout — so you can decide whether to accept the downscale or raise the limit.
WebP opens 30–40% more visual headroom
Below 100 KB the format gap widens fast. A 50 KB WebP carries roughly 30–40% more detail than a 50 KB JPEG of the same image. Sukat defaults to WebP for that reason. Pick JPEG only if the destination explicitly requires it.
HEIC-aware iPhone input
Shot it on iPhone? Drop the .HEIC straight in. Sukat decodes it in-browser and re-encodes to the target format. Most online compressors fail silently or refuse HEIC entirely.
Local, no upload, no signup
Compression runs entirely in your browser via the Canvas API. The image never leaves the device. Verify by switching to airplane mode after the page loads — the conversion still works.