Image Resizer to 100KB — Reduce Image Size
Resize and compress images to under 100KB. Free online image resizer tool.
Open Image Resizer →Get the job done quickly and easily with our free image resizer tool. It’s designed to be simple, fast, and private.
All processing happens locally in your browser. Nothing is uploaded to any server. Your files stay on your device. No signup, no email, no credit card.
Resizing an image to under 100 KB is essential for website icons, email attachments with strict limits, and platforms that reject large files. Small file sizes also improve page load speed.
Our image resizer and compressor work together to shrink your files. First resize to smaller dimensions, then compress until the file hits your target size.
Privacy-first: all processing is local. No uploads, no data collection. Use the Image Resizer and Image Compressor together.
Try it now — free, no signup, and fully private. Every TinyToolbox tool runs in your browser, so your data stays with you.
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Use the Free Tool NowTips for Using Image Resizer
For best results, start with a high-resolution source image. The tool processes everything locally in your browser — your files never leave your device. Most adjustments happen in real time, so you can experiment freely without waiting for server round trips.
Common use cases include preparing social media visuals, cleaning up product photos for online stores, creating consistent brand imagery across platforms, and preparing images for printing or sharing. Each tool gives you fine-grained control while keeping the interface simple.
Browser-local image processing is faster and more private than cloud-based alternatives. There are no file size limits (beyond what your browser can handle), no queue times, and zero risk of your images being stored on external servers or used for training data.
More Questions About Image Resizer
How is Image Resizer different from similar tools?
Image Resizer runs entirely in your browser — no data is sent to any server. It provides instant results without file size limits, registration, or hidden costs. Unlike many free online tools, it works offline after the first page load and respects your privacy completely.
Can I use Image Resizer on my phone or tablet?
Yes. TinyToolbox tools are fully responsive and work on smartphones, tablets, and desktop browsers. The interface adapts to your screen size, and touch interactions are supported throughout. Since everything runs locally, mobile performance is smooth even on slower connections.