Compress Image to Exact Size in KB

1. Step 1: Upload your image

   Click “Upload Images” or drag and drop JPG, PNG, or WEBP files into the box. You can add up to 50 photos in one batch.

2. Step 2: Enter the target size in KB

   Type an exact size like 20KB, 50KB, 100KB, 200KB, or any custom value. The tool aims to reach or stay just under that number.

3. Step 3: Click compress

   Press “Compress All Images.” Each file is processed in your browser with our fast algorithm to shrink photos without unnecessary quality loss.

4. Step 4: Download the compressed image

   Save files individually or download everything as a ZIP. Perfect for online forms, college portals, and passport uploads.

Choose a realistic KB target to balance clarity and file weight. Smaller limits suit strict government or exam portals; larger limits preserve detail for product or portfolio shots.

Use the batch uploader to add dozens of JPG, PNG, or WEBP files, set one goal such as “compress photos to 100KB,” and let the tool process each file sequentially. This prevents browser slowdowns, keeps performance smooth, and delivers a consistent output size across the entire set. Ideal for students, HR teams, and site owners who need uniform image weight before submitting forms or uploading galleries.

Whether you need to compress jpg image online for quick sharing, shrink a transparent PNG for an online form, or optimize WEBP files for Core Web Vitals, SiRa Convert handles it in-browser. Pick a target like 50KB for applications, 20KB for strict portals, or higher limits for sharper previews. Download single results or export everything as a ZIP once compression finishes.

SiRa Convert is a free image compressor online that lets you compress photos to exact sizes like 20KB, 50KB, or 100KB without sending files to a remote server. The browser-based engine is optimized for quick results, making it perfect for government forms, passport photos, college and job applications, visa portals, and scholarship submissions that demand strict upload limits. Designers and developers can reduce image size in KB for faster page loads, while marketers can compress JPG, PNG, or WEBP assets for landing pages and ads. Because processing happens on your device, there is no waiting for uploads and your data stays private. Use it as a bulk image compressor to process up to 50 files in one go, then download individually or export a ZIP. With exact KB targeting, you get predictable output that keeps enough quality for professional and personal use. Compress photo for online form submissions, lighten images for LMS or exam portals, and generate web-friendly assets that pass Core Web Vitals checks. The tool also helps small businesses send lighter catalogs by email and lets students submit university documents under strict size caps without sacrificing clarity.