Compress Image to 100KB — Free Online Compressor
Need to reduce an image to exactly 100KB or less? NanoImage's free online compressor makes it effortless. Perfect for passport photos, ID submissions, online applications, and forums that enforce strict 100KB file size limits. Our tool uses intelligent quality optimization to compress your images to under 100KB while preserving maximum visual clarity. Everything runs locally in your browser — no server uploads, no registration, no limits. Upload any JPG, PNG, or WebP image and get an optimized version under 100KB in seconds.
Drag & drop your image here, or click to browse
Supports JPG, PNG, WebP, GIF, BMP
Upload up to 10 images at once
How to Use
- 1
Upload your image by dragging it into the upload area or clicking to browse.
- 2
The target size is pre-set to 100KB. Adjust if needed, or keep the default for 100KB output.
- 3
Click "Compress" and download your image, now under 100KB.
Frequently Asked Questions
Why would I need to compress an image to 100KB?
Many online applications, government portals, and forums require images under 100KB. Passport photo submissions, visa applications, and profile pictures often have strict size limits.
Will my image look blurry after compression?
NanoImage uses smart compression that finds the optimal quality level. For most images, the visual difference is barely noticeable even at 100KB.
Can I compress a PNG to 100KB?
Yes! PNG files are automatically converted to JPEG during compression to achieve smaller file sizes. You can also choose WebP format for even better quality at small sizes.
What's the difference between 200KB and 100KB compression?
The 200KB target works well for most web uses and email attachments. The 100KB target is stricter and ideal for government portals, visa applications, and platforms with tight file size limits.