Compress Image

Compress an Image to an Exact File Size — Free, No Watermark

Most portals set a hard KB ceiling for a photo upload, not just a soft "keep it small" suggestion — miss it by even a few KB and the upload is refused outright. A phone photo comes out anywhere from 1 MB to 8 MB by default, nowhere close to the 20 KB, 50 KB or 100 KB windows most Indian government portals, exam forms and application systems actually ask for. Doing this by hand with an editor's "Save As" quality slider means guessing a percentage, checking the resulting file size, and trying again — often three or four times before it lands inside the limit.

This tool skips the guessing: pick, or type, the exact KB you need, and it searches through JPEG quality levels on its own until it finds the highest one that still lands under your target — so the photo stays as clear as it can be at that size rather than being crushed further than necessary. It works the same for a 20 KB passport photo, a 100 KB scanned document, or a 500 KB attachment limit — one tool, any target, and it runs entirely in your browser.

Common Upload Limits This Tool Is Built For

This table is for orientation only — the form or portal in front of you always has the final word on the exact number.

How It Finds the Exact Size — Instead of Guessing

Rather than applying one fixed quality percentage and hoping it lands close enough, this tool tries a quality level, checks the actual byte size of the result, and narrows in — a little higher if there is still room under your target, a little lower if it overshot — repeating that a handful of times until it settles on the highest quality that still fits under your chosen number. That is the same idea a careful person would use with a manual "Save As" slider, just done automatically and far faster, and it never crosses a quality floor low enough to make the photo look genuinely broken.

If quality alone cannot reach a very tight target — a high-resolution photo squeezed down to 20 KB, for instance — set a maximum width too. Shrinking the pixel dimensions first gives the quality search far more room to work with, and is usually gentler on the final look than forcing quality down to its floor on the full-size image.

Tips for the Cleanest Result at a Small Size

• Start from the best original you have — a sharp, well-lit source photo still looks clean after heavy compression; a blurry or noisy one falls apart much faster.
• Avoid compressing an already-compressed JPEG a second or third time — each pass adds a little more loss on top of the last. Go back to the original photo if you have it, rather than re-compressing a copy someone already shrank.
• Use JPG for photographs — it is built for smooth photographic detail and will always compress a photo smaller than PNG at the same visual quality.
• Use PNG only for flat-colour graphics — a screenshot, a logo or a scanned text page with sharp edges can look better as PNG, though the file will usually be larger.
• Set a maximum width when the form caps both the file size and the pixel dimensions — this tool applies both together in one pass.

JPG vs PNG vs WEBP — Which Should You Pick

JPG is the right default for almost every photograph going to a government form, an exam portal or a bank KYC upload — it is universally accepted and compresses photographic detail efficiently. PNG is lossless and keeps sharp edges and transparency perfectly, which makes it the better choice for a logo, a screenshot with text, or a graphic with flat colour blocks — but it produces a noticeably larger file at the same target quality, so it is a poor fit when a strict KB ceiling is the whole point. WEBP compresses smaller than either at a similar visual quality and is supported by every modern browser, but a portal built years ago may not recognise it — check that the form explicitly accepts WEBP before relying on it, and fall back to JPG if you are not sure.

Your Photo Never Leaves Your Device

The whole compression process — trying quality levels, measuring the result, resizing if a maximum width is set — runs as JavaScript inside your own browser tab, using the HTML5 Canvas every modern browser already has built in. Nothing is uploaded to reach that result, there is no account to create, and the file only leaves your device once: the moment you press Download, straight into your own downloads folder. Close the tab and nothing of your photo remains anywhere but your own device.

Compress-to-Target vs. a Generic "Save As" Slider

A photo editor's export dialog gives you a quality percentage, not a file size — you pick a number, save, check the result, and adjust again if it missed. That trial-and-error loop is exactly what this tool replaces: tell it the KB you actually need, and it runs that same search automatically, landing on the highest quality that fits in a few seconds instead of a few manual attempts. It is also free of the software itself — no Photoshop licence, no app install, just a page that works the same on a phone as it does on a desktop.