Compress Image to 10KB
Compress any image to under 10 KB right in your browser. Automatic quality tuning hits your target size — no uploads, no signup.
Drop an image here or click to browse
Supports PNG, JPG, and WebP — compressed to ≤ 10 KB automatically
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Compressed
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The tightest limit you will meet
10 KB is roughly one two-hundredth of a modern phone photo, and whether it is achievable depends entirely on what the image contains. A signature or thumb impression — dark ink on white paper, almost no colour variation — compresses to that size while staying perfectly legible. A photograph of a face does not, and any tool promising otherwise is simply going to hand you something blurry.
So when a form specifies 10 KB, read the surrounding instructions carefully. It almost always also specifies small pixel dimensions, often something like 140 × 60 for a signature. Resize to those dimensions first and the size target stops being a fight.
The failure people actually hit at this size is the opposite one: the file comes out too small. Portals that specify 10 KB usually mean a range — 10 to 20 KB is the classic — and reject anything under the floor. A tightly cropped signature can easily land at 4 or 5 KB. When that happens, scale the image up rather than compressing less: more pixels at the same quality produce a bigger file, which is exactly what you need.
How to use Compress Image to 10KB.
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Drop an image (JPG, PNG, or WebP) into the tool or click to choose a file
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The tool automatically compresses it to 10 KB or less
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Compare the original and compressed sizes shown on the result card
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Click Download to save the compressed image
Why use this tool.
Meet hard 10 KB upload limits on forms and portals in one click
No trial-and-error with quality sliders — the tool finds the setting for you
Photos never leave your device — safe for ID photos and documents
No signup, no watermark, no file limit
About Compress Image to 10KB.
This tool compresses JPG, PNG, and WebP images to 10 KB or less automatically. The tightest limit on exam and portal forms — usually signatures and thumb impressions. Instead of guessing at quality percentages and re-exporting until the file is small enough, the tool searches for the best quality setting that fits the 10 KB budget and, when needed, resizes dimensions intelligently. Everything runs in your browser — the image is never uploaded, so identity documents, application photos, and signatures stay on your device. The result downloads instantly as a JPG that passes 10 KB upload validation.
Frequently asked questions.
How does the tool get the image under 10 KB?
It runs a binary search on JPEG quality, re-encoding the image several times until it finds the highest quality that stays under 10 KB. If even the lowest reasonable quality is too big, it scales the dimensions down slightly and tries again — the same process you would do by hand, automated.
Will my image lose quality?
Some quality loss is unavoidable when targeting a fixed size — that is what compression is. The tool always picks the highest quality that fits under 10 KB, so you lose as little as possible.
Is my photo uploaded to a server?
No. Compression happens entirely in your browser using the HTML5 canvas API. Your photo never leaves your device, which makes this safe for passport photos, ID documents, and signatures.
What format is the output?
The compressed image is delivered as a JPG, which is the format virtually all upload forms with size limits expect. Transparent areas of PNGs are flattened onto a white background.
Can a photo survive being compressed to 10 KB?
A signature or thumb impression can — those are mostly white paper with a little ink, which compresses extremely well. A face photograph at 10 KB will be visibly soft; if a form asks for a photo at 10 KB it usually means a small pixel size too, so crop tightly first.
My file came out below the minimum the form allows.
Some portals require a range, such as 10-20 KB, and reject anything under the floor. If your output lands too small, resize the image up slightly (try 300x130 px for a signature) and compress again — more pixels means more bytes at the same quality.