A simple tool built for real people with real deadlines.
ReduceSize.online was built because we kept seeing the same frustrating situation: someone fills out a government exam form, uploads their photo, and gets rejected because the file is 22KB instead of 20KB. No explanation. Just rejection.
Most image compressors online reduce file size roughly — they give you "smaller" but not "exactly this size." That's not useful when a portal requires exactly 20KB and your image is 23KB. You end up guessing, trying, failing, trying again.
We built ReduceSize to solve one specific problem: getting an image or PDF to an exact file size, first try, every time. The tool uses a binary-search compression algorithm that adjusts quality and dimensions together until your file hits the target you set.
No server uploads. No accounts. No trial limits. Everything runs inside your browser using your device's own processing power. Your files never leave your phone or computer.
Students applying for SSC, UPSC, Railway, and Police exams. Professionals uploading documents to HR portals. Anyone who has ever been told their image is "too large" by an online form.
Free forever. No ads that slow you down. No data collection. No hidden fees. Just a tool that does exactly what it says.