Resize Image to 100 KB
Shrink any JPG or PNG photo to 100 KB or less with barely visible quality loss — perfect for email attachments, fast-loading web images and upload limits. Everything runs in your browser; your photo is never uploaded.
Click to choose an image, or drag & drop
JPG or PNG · processed on your device, never uploaded
How to use
- 1Drop your photo onto the box, or click to browse.
- 2The target is already set to 100 KB — leave the preset alone unless you need specific pixel dimensions.
- 3Pick a fill mode: crop to fill keeps the aspect ratio and is the usual choice.
- 4Download the resized image and check the final size shown next to it.
Other versions of this tool
- Image Resizer (Exact KB)Resize and compress any photo to exact dimensions and an exact file size (20KB, 50KB, 100KB…) with presets for passport photos, IDs, signatures and more.
- Resize Image to 20 KBCompress any photo to 20 KB or less — for signature and form uploads.
- Resize Image to 50 KBCompress any photo to 50 KB or less — the most common photo-upload limit.
Frequently Asked Questions
How do I reduce a photo to 100 KB?
Upload the image and click Resize — the tool automatically finds the highest JPEG quality that keeps the file at or under 100 KB. Most photos look essentially unchanged at this size.
When is a 100 KB image needed?
Document upload portals, contact forms with attachment limits, website images that need to load fast, and email systems with strict attachment quotas all commonly call for images around 100 KB.
Does compressing to 100 KB reduce the resolution?
No — by default the pixel dimensions stay the same and only the JPEG compression increases. Untick “keep original dimensions” if you also want a smaller resolution, which further improves quality per kilobyte.
Is 100 KB enough for a printed photo?
For screen use, comfortably. For print it is tight — printing wants far more pixels than 100 KB of JPEG can carry at photographic quality. Use 100 KB for uploads and email, not for anything you intend to print at size.
What is the difference between crop, fit and stretch?
Crop fills the target dimensions and trims the overflow, keeping proportions correct — the usual choice. Fit adds a white border so nothing is lost. Stretch forces the image to the exact shape and will distort faces, so avoid it for photographs.
Will converting a PNG screenshot to 100 KB blur the text?
Some. JPEG is built for photographs and softens sharp edges such as text. If the screenshot must stay crisp, reduce its dimensions instead, or keep it as a PNG where the form allows one.