Compress an image to 100 KB
A 100 KB limit is common on job portals, school and university applications and many upload forms. The target is already set to 100 KB: drop your image and download the best-looking version that fits under it.
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Results
How to compress an image to 100 KB
- Drop the photo or scanned document.
- The target is already set to 100 KB. Change it if your form says otherwise.
- Keep JPG, and add a max width only if the form specifies dimensions.
- Run it and download the result.
What fits in 100 KB
A 100 KB limit gives you room for a proper photo. A typical picture around 1000 to 1400 pixels wide fits at good quality, which is sharp on any screen. That is why the limit shows up on job portals for profile photos, on school and university applications for supporting documents, and on many business systems that accept photo uploads.
A photo straight from a phone camera is usually 3 to 5 MB and several thousand pixels wide, so getting to 100 KB means reducing both the quality and the dimensions. The tool does both automatically, keeping as many pixels as the limit allows.
Scanned documents at 100 KB
A single page photographed or scanned as an image fits in 100 KB with readable text, provided the page is evenly lit and cropped to the paper. Photograph it straight on, crop away the table around it, and compress. For documents with several pages, combine them into one PDF with the images to PDF tool and then use the PDF compressor, because most forms want multi-page documents as a single PDF.
Choosing JPG or WebP
JPG is the safe choice for forms: every system accepts it. WebP fits noticeably more detail into the same 100 KB, so use it for your own website or anywhere that explicitly accepts .webp.
Tips for a sharper result
- Crop to the subject before compressing, so the budget is spent on what matters.
- Avoid heavy filters and grain; noise is the most expensive thing to compress.
- If the form lists dimensions, resize to exactly those first.
Frequently asked questions
Are my photos uploaded?
No. Decoding and compression happen in your browser, on your own device. The photos never leave it, which matters for ID photos and personal pictures.
How big can the image be at 100 KB?
A typical photo around 1000 to 1400 pixels wide fits under 100 KB at good quality. A phone photo straight from the camera is usually 3 to 5 MB, so the tool reduces both quality and dimensions to get there.
Can I compress a scanned document to 100 KB?
Yes. A single A4 page scanned as a photo fits comfortably, and text stays readable. For several pages, put them in one PDF and use the PDF compressor instead.
Should I choose WebP?
Only if the site accepts it. WebP fits more quality into 100 KB, but most forms only accept JPG or PNG.
Your files never leave your device
Every tool on Squishly Tools is 100% free and runs entirely inside your browser. Your images and documents are processed on your own computer and are never uploaded to a server. There are no accounts, no watermarks and no catch.