Convert Image to JPG under 100KB
Turn a PNG, WebP, HEIC or JPG into a JPG under 100 KB in one step — conversion and size target together, entirely in your browser.
Drop an image here or click to browse
Supports PNG, JPG, and WebP — compressed to ≤ 100 KB automatically
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What actually fits inside 100 KB
100 KB is roughly the size of a paragraph of text stored as a photograph — which sounds impossible until you see it work. A head-and-shoulders portrait at around 800×1000 pixels sits comfortably inside it at good quality. A wide landscape with fine detail across the whole frame will need its dimensions reduced. A screenshot of dense text will look poor, because JPEG spends its budget on smooth gradients and struggles with sharp edges.
If the result looks softer than you want, the fix is almost always crop before you convert. Every pixel of background is competing for the same 100 KB as the subject. A tight crop of a face at 100 KB looks dramatically better than a full-body shot squeezed to the same size.
One thing to check before uploading: some portals set a minimum as well as a maximum — "between 20 KB and 100 KB" is common. If your output lands under the floor, resize the image slightly larger and run it again rather than lowering the target.
How to use Convert Image to JPG under 100KB.
- 1
Drop any image in — PNG, WebP, JPG, or a photo straight from your phone
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The tool converts it to JPG and compresses until it is under 100 KB
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Check the result card for the final size and the preview for quality
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Click Download to save the JPG
Why use this tool.
Satisfy forms that demand "JPG, under 100 KB" without using two different tools
No intermediate file to clean up afterwards
ID photos, signatures and documents never leave your device
Free, no watermark, no daily limit
About Convert Image to JPG under 100KB.
Upload forms usually state two requirements in one line: the file must be a JPG, and it must be under 100 KB. Meeting both normally means a converter followed by a compressor, and a stray intermediate file in your downloads folder. This tool does it in one pass — drop in a PNG, WebP, HEIC or oversized JPG and it re-encodes to JPEG while searching for the highest quality that still fits under 100 KB, reducing dimensions only if quality alone cannot get there. Transparency is flattened onto white, because JPG cannot store an alpha channel. Everything runs in your browser: the photo is decoded, converted and compressed on your own device, which matters when the file in question is an ID photo or a signed document. The most common pairing on job portals, admission forms and marketplace listings.
Frequently asked questions.
Why do forms ask for a JPG under 100 KB specifically?
Two separate constraints that get combined into one sentence. JPG because it is the one image format every system since the 1990s can read. 100 KB because storing millions of uploads costs money, so portals cap what they accept. Most tools solve one or the other; this one does both at once.
What happens to a transparent PNG?
JPG has no alpha channel, so any transparent area is filled with white before encoding. For a photo or a scanned document that is exactly what you want. For a logo you need to keep as a cutout, convert to WebP or keep the PNG instead.
Can I feed it an iPhone HEIC photo?
On Safari and most current browsers, yes — the browser decodes HEIC natively and the tool re-encodes it as JPG. If your browser refuses the file, run it through the HEIC to JPG converter first, then bring the JPG back here.
How does it hit 100 KB exactly?
It binary-searches JPEG quality, re-encoding until it finds the highest setting that still fits under 100 KB. If even low quality is too large — common with very high-resolution photos — it reduces the dimensions and tries again, so the result stays as sharp as the limit allows.
Is anything uploaded?
No. Decoding, conversion and compression all run in your browser tab. You can load this page, disconnect from the internet, and it still works.