Reduce image size in KB
Three steps. The algorithm does the searching; you just state the limit.
Upload the image
Drop a JPG, PNG, WebP, HEIC, AVIF, or GIF onto the drop zone, click to browse, or paste from clipboard.
Set the KB target
Type your target into the Maximum File Size field and pick KB. Choose output: JPEG for photos, WebP for the web, PNG for transparency.
Convert and download
Click Convert & Download. Sukat binary-searches for the highest quality that fits under your KB ceiling and saves the file locally.
Every common KB ceiling, one tap away
Different platforms enforce different limits. Each row goes to a dedicated page with copy, FAQ, and exact use cases. For a fuller breakdown by platform, see the Image Size Guide.
Size in KB, not a quality percentage
The control most compressors expose is the wrong one for the job.
A quality slider tells you nothing about file size
Most compressors expose a “quality” slider from 1 to 100. That value tells you nothing about the resulting file size: the same quality 60 produces an 80 KB file from a low-detail iPhone shot and a 600 KB file from a busy DSLR landscape, because compressed size depends on image content, not just settings.
If the constraint that actually matters is “must be under 100 KB”, a quality slider is the wrong control. Sukat exposes the constraint directly: type 100, click Convert. The binary search runs roughly seven re-encodes internally, narrowing the quality range each round until it lands on the highest quality that still fits. You don't see the loop — you see the result.
When a specific KB target matters
Where the constraint hits hardest, and why.
- Government portals. UPSC, SSC, IBPS, Passport Seva, DFA, IRCC, DS-160 — every one enforces a KB ceiling. Reject above the limit, no useful error message.
- Job application portals like Naukri, LinkedIn Easy Apply, Workday — most cap profile photos at 100 KB or 500 KB.
- Older content management systems with hardcoded upload limits from a decade ago when storage was expensive.
- Email attachments when you want to send 10 photos under a 5 MB inbox cap — that's 500 KB per photo.
- Page-speed work where blog thumbnails should sit at 100–200 KB and hero images under 500 KB.
- Mobile data conservation — on a metered connection a 200 KB image is twenty times cheaper than a 4 MB original.