Reduce Image Size Online
The smartest image size reducer for government applications and web performance. Reduce physical dimensions or KB weight securely and instantly. No server uploads.
The Ultimate Image Size Reducer
Reducing the size of an image means different things depending on your goal. Whether you need an image to weigh fewer megabytes to meet form upload limits, or you need it physically smaller in length and width, this tool handles it effortlessly online.
Reduce Dimensions
Digital photos taken with DSLR cameras or modern iPhones shoot in 4K or 8K resolution. This is generally too large for web. Reduce your actual height and width down to more standard sizes like 1080p easily.
Reduce File KB Weight
Applying for a visa or government job? The upload gateways are usually restricted to photos between 20KB and 50KB. Use our strict-mode target limit to reduce your file weight past these gates without failing.
Total Data Sovereignty
Never risk uploading your passport scans or sensitive financial documents to an unknown server. Our image size reducer performs the complicated mathematical transformations locally using WebAssembly.
Why Size Reduction is Critical for Online Forms
The majority of users landing on this page are attempting to upload their photos or signature scans to an online job application, Visa platform, or educational portal (such as SSC, UPSC, and NEET in India).
These legacy IT systems are incapable of processing massive 15MB photos for millions of applicants simultaneously. Therefore, the systems enforce strict limitations directly on the form upload gateway. If you attempt to process a file that is 51KB when the limit is 50KB, you are met with an immediate "Invalid File Size" Error.
Common Size Reduction Guidelines:
- ✓ Signatures: Usually reduced to between 10KB and 20KB
- ✓ Passport Photos: Usually reduced to under 50KB
- ✓ ID Cards / Scans: Usually confined directly between 100KB to 200KB
Our tool automatically scales the dimensions and strips unnecessary metadata out of the file to hit your exact requirements safely.
Frequently Asked Questions
How do I reduce an image size below 100KB?▼
Using our free image size reducer, simply select the exact KB size you need (for example, "100") in the "Target KB" input field. The tool will calculate the exact degree of compression needed to hit the optimal resolution and weight without visual degradation.
Does reducing the image size decrease its quality?▼
It depends on your target size. If you reduce a 10MB photo to 1MB, the quality difference is virtually imperceptible. If you reduce it down to 20KB for an exam portal, there will be noticeable compression artifacts, though it will still remain recognizable for identity verification.
How do I reduce image dimensions (pixels or cm)?▼
Simply switch our tool from the "Target KB" mode to the "Dimensions" mode. Enter your desired Width and Height in pixels. The tool will proportionally reduce the physical canvas of your image to fit.
Is this image size reducer really private?▼
Yes, absolutely. Most image size reducers upload your data to a remote server for processing. Our tool uses advanced HTML5 and WebAssembly features to process everything locally on your own CPU. Your secure documents and personal photos never leave your device.
Why does my application portal reject my image size?▼
Most portals reject images for two reasons: (1) The file weight (KB/MB) exceeds their maximum limit, or (2) the intrinsic pixel dimensions (Width x Height) are larger than allowed. This image size reducer helps you fix both metrics.