Compress Image to 100 KB
Compress a photo, scanned page or screenshot to 100 KB or less, keeping its original format or switching to JPG, WebP or PNG.
Compress Image
or drag JPG, JPEG, JFIF … files here ·
Up to 95 MB each· 20 files at once· Removed after 30 min
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Never shrink below this width when downscaling. 0 means no minimum.
Optionally set the dimensions before compressing. Forms that specify pixels as well as KB need both.
Pixels for the side you chose above.
The search for the target size will not go below this quality; it downscales instead.
4:2:0 halves color resolution and saves a lot on photos; 4:4:4 keeps sharp edges on text, logos and screenshots.
Lossy PNG quantises colors (like TinyPNG) and is far smaller; lossless keeps every pixel.
Files are deleted 30 minutes after processingPrivacy policy
One hundred kilobytes is a round cap that many forms use, and it is large enough that most images reach it without visible loss.
What fits in 100 KB
At 100 KB there is room for a sharp portrait photo of moderate size, a scanned page of handwriting, a clean screenshot of a form or a chart, or a product photo for a small listing. What does not fit is a full-resolution camera picture: modern phones save photos of several megabytes, so reaching 100 KB means lowering quality and, for large photos, the pixel count as well.
That is why this preset works on any format. A screenshot saved as PNG can stay a PNG, a phone photo can stay a JPG or become one, and a mixed batch can go through together. The tool works out the best quality for each file separately and only reduces pixels when quality alone is not enough.
A mixed batch is common when one application asks for several uploads. You might have a phone photo in HEIC, a scanned certificate as PNG and a signature as JPG, all with the same 100 KB cap. Add them together, set Output format to JPG if the form accepts only that type, and every file comes back converted and compressed in one pass.
20–100 KB
Signature file size in UPSC's 2026 CAPF examination notice.
The same UPSC notice allows the photograph 20–200 KB, so one application can need two different targets.
An IBPS upload guideline sets another 100 KB ceiling: the handwritten declaration must be 50 to 100 KB, at about 800 × 400 pixels. Both rules share a floor as well as a cap, so a target exactly at 100 KB is safe only because the tool stops just under it. If a portal still complains, enter 95 KB and compress again.
Compress an image to 100 KB in three steps
Drop in your images
Add up to 20 images on the box above, or press Choose Files. Any common type works, including PNG screenshots and HEIC photos.
Keep or change the format
The target is 100 KB. Output format stays on Same as input; pick JPG, WebP or PNG if the place you upload to asks for one.
Compress and download
Press Compress and save the results. Each file ends at or a little under 100 KB.
Compress to 100 KB questions
Which forms ask for files of 100 KB or less?
UPSC's 2026 CAPF notice caps the signature at 100 KB, and an IBPS guideline asks for a handwritten declaration of 50 to 100 KB. Many smaller portals, school sites and HR systems use 100 KB as a round cap too. Always read your own form's notice, since limits change.
Will a screenshot stay readable at 100 KB?
Usually yes. Text in a screenshot needs sharp edges, so keep it as PNG with PNG compression on Lossy, or try JPG at a high quality. If a very large screenshot still gets blurry, crop it to the part that matters before compressing.
Should I choose WebP to get more quality into 100 KB?
WebP does fit more detail into the same size, and it is a good choice for your own website or chat. For official forms, stick to JPG or PNG unless WebP is listed; many portals still reject it.
Can I compress many photos to 100 KB each at once?
Yes. Add up to 20 images and each one is compressed to its own 100 KB result. They can be downloaded one at a time or together.
My image is already under 100 KB. What happens?
It is left as it is, apart from metadata removal if Strip metadata is on. Compressing a file that already fits would only cost quality.
How is this different from the Compress JPEG to 100 KB page?
This page keeps each file in its own format by default and suits mixed batches. The JPEG page always writes JPG and explains the JPEG-only settings, such as chroma subsampling and progressive encoding.
Choosing the output format
Same as input is the default because it never surprises the place you upload to: a JPG stays a JPG and a PNG stays a PNG. Change it when the destination asks for a particular type, or when the file is a photo saved as PNG. Photos stored as PNG are large by nature, and turning them into JPG usually brings them under 100 KB with very little change to how they look.
For pictures with transparent areas, such as a logo or a signature on a clear background, keep PNG: JPG cannot store transparency and fills it with a solid color. WebP and AVIF give the best quality per kilobyte and suit your own pages; the full Compress Image tool explains the trade-offs of each.
Whatever you choose, location data and camera details are removed by default under Metadata & color profile, and the color profile is kept so colors do not shift. Orientation from the camera is applied to the pixels, so photos taken sideways arrive upright on the form.
Keeping detail at 100 KB
Crop before you compress. Every kilobyte spent on an empty margin, a desk behind the paper or a status bar at the top of a screenshot is a kilobyte taken from the part that matters. A tight crop often lets the tool keep the full pixel size at a high quality.
If the destination shows images at a known width, resize to that width under Resize first. A picture displayed at 800 pixels gains nothing from being stored at 4,000, and the smaller size leaves more of the 100 KB for quality. When a form gives centimeters instead of pixels, Resize Image converts them.
For a PDF that has to meet the same limit, Compress PDF to 100 KB applies the same idea to every image inside the document. The ladder below moves to the neighboring image sizes.
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