Resize Image to 100KB Online Free
Compress JPG, PNG, WebP images to exactly 100KB — or any custom size. 100% browser-based. Your images never leave your device.
Drop images here or click to upload
Supports JPG, PNG, WebP, GIF, BMP — up to 10 images at once
📊 Before vs After Preview
Compress Image to 100KB — Fast, Free & Private
Toolistaan's image to 100KB compressor is the fastest way to reduce any photo's file size to exactly 100KB online — without installing any software. Unlike other tools that upload your images to a server, our tool runs 100% inside your browser, meaning your photos stay completely private and secure on your device.
Whether you need to compress an image for a government form, passport application, job portal, website upload, or social media — this tool gets it done in seconds. You can also set a custom KB target like 50KB, 200KB, or any value, not just 100KB.
When Do You Need to Resize an Image to 100KB?
Government Forms
IBPS, SSC, UPSC, Railway, visa, passport — all require images under 100KB.
Website SEO
Images under 100KB load faster, improve Core Web Vitals & Google rankings.
Email Attachments
Reduce photo size before sending to avoid large attachment issues.
Social Media
Optimized images upload faster on WhatsApp, Facebook, Instagram.
E-Commerce
Product images compressed to 100KB keep your store fast and SEO-friendly.
College Forms
University & scholarship portals often restrict photo uploads to 100KB.
How to Compress Image to 100KB — Step by Step
Step 1: Click "Choose Images" or drag & drop your JPG, PNG, or WebP files into the upload area. You can upload up to 10 images at once for batch processing.
Step 2: Set your target size. The default is 100KB, but you can enter any value — 50KB, 200KB, or 500KB. Select your preferred output format (JPG for maximum compression, WebP for smallest file size).
Step 3: Click "Compress Images to 100KB". Our smart binary-search algorithm automatically finds the optimal quality level to hit your exact target size — no manual adjustments needed.
Step 4: Preview before/after comparison, then download individual files or all at once with one click.
Why Toolistaan is Better Than Other Image Compressors
Most online tools force you to upload images to their servers, risking your privacy. They also limit batch processing to just 3 images unless you pay. Toolistaan gives you 10-image batch processing for free, a custom KB target, WebP output, and before/after preview — all without any server upload. Your images are processed entirely inside your browser using the HTML5 Canvas API.