Compress an image to 30 KB
Three steps. For most face portraits, original dimensions are preserved; the live preview shows the actual output before you download.
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.
Set 30 KB and pick a format
Type 30 in Maximum File Size and select KB. Pick WebP — at 30 KB it noticeably outperforms JPEG. Use JPEG only when the destination portal explicitly requires JPG.
Convert and download
Sukat binary-searches for the highest quality that fits under 30 KB and saves the file locally. If quality 1 still can’t fit, it downscales pixel dimensions and tries again.
When a 30 KB image matters
30 KB is the most common “tight end” cap on Indian banking and government recruitment portals. Where it shows up:
- IBPS PO / Clerk / RRB candidate photos. The standard cap for candidate-photo uploads across most IBPS-administered exam cycles is 20–50 KB; 30 KB is the safe target inside that window.
- SBI & State Bank exam portals. SBI PO and Clerk online application forms enforce a similar 20–50 KB ceiling on the candidate photograph.
- SSC and state-level recruitment forms. SSC CHSL, CGL, and many state PSC portals fall in the same 30 KB neighbourhood for the photo field.
- RRB Group D / NTPC applications. Railway Recruitment Board portals carry forward the same 20–50 KB photo limit from earlier cycles.
- Internal HR & ID-badge systems. Many enterprise photo databases standardise on a 30 KB profile thumbnail to keep storage and load times consistent.
- Low-bandwidth archives. Civic, academic, and archival photo databases at scale — 30 KB hits the sweet spot between recognisable face and bulk storage.
Built for the candidate-photo cap
The control most compressors expose — a generic quality slider — doesn’t map cleanly to a 30 KB ceiling. The constraint does.
Hits 30 KB, not “close to” 30 KB
State the cap; the algorithm binary-searches the quality scale, converging in roughly seven re-encodes. The output is under 30 KB at the highest quality that fits. One pass, every time.
Dimensions preserved where possible
At 30 KB, a typical 800–1000 pixel face portrait usually fits at original dimensions — Sukat drops quality first and only downscales pixels when quality alone can’t reach 30 KB. A busy 4000-pixel landscape will be downscaled; a candidate photo usually won’t.
WebP support, not just JPEG
At 30 KB, a WebP carries roughly 35–45% more visible detail than a JPEG of the same size. Sukat defaults to WebP. Pick JPEG when the destination portal explicitly requires JPG — many older IBPS / SBI / RRB systems do, so the dropdown is one click away.
HEIC-aware
Shot the candidate photo on iPhone? Sukat decodes HEIC directly — no separate convert-to-JPG step. Most online compressors silently fail on HEIC input.
Privacy by default
Compression runs entirely in your browser via the Canvas API. Your photo never reaches a server. Verify by switching to airplane mode after the page loads.