Image Compressor & Resizer
Compress JPG, PNG, and WebP pictures strictly under 5KB, 10KB, 20KB, 50KB, 100KB, 200KB with guaranteed upper bounds and 300 DPI metadata injection.
Drag & drop your image file here
or click below to browse
Supports JPG, PNG, WEBP (Max 50MB)
Compression & Dimension Settings
The engine guarantees the compressed file will be strictly smaller than or equal to this limit.
Preview & Result
Learn About Image Compression & DPI Standards
How Does Strict Target KB Compression Work?
When you specify 5KB or 20KB, our in-browser algorithm tests quality factors and canvas scaling in a tight multi-pass binary search loop (0.05 to 0.95). If the lowest quality is still over your limit, it proportionally scales resolution down to strictly guarantee that output bytes never exceed your target.
What is 300 DPI Calibration?
Government portals (such as NSDL, UTIITSL, UPSC, and SSC) reject images without the mandatory 200 or 300 Dots Per Inch tag. BR DOT HUB injects calibrated JFIF binary headers directly into your JPEG file in RAM.
Frequently Asked Questions (FAQ)
How do I reduce my photo to strictly 50KB or 20KB for online exam forms?
Upload your photo, click the 50 KB or 20 KB preset pill, and click Process Image. The algorithm automatically determines the optimal compression factor and resolution without exceeding the limit.
What DPI should I select for government exam forms?
Most recruitment boards (UPSC, SSC, State PSCs) and PAN card portals specify 200 to 300 DPI for passport photos and up to 600 DPI for signatures. Selecting 300 DPI embeds the necessary JFIF print resolution tag.
Are my confidential documents uploaded to any remote server?
No. All compression and metadata injection operate strictly inside your browser's local sandbox using the HTML5 Canvas API and JavaScript memory buffers.