100KB Extension v1.1.1: Compress & resize files in 0ms directly in Google Chrome
Crop and add clean rounded corner borders to your photos and images online for free. 100% private, instant browser processing.
Crop and add clean rounded corner borders to your photos and images online for free. 100% private, instant browser processing.
| Format | Quantization Engine | Color Space & Subsampling | Target Size Ceiling | Portal Acceptance |
|---|---|---|---|---|
| JPEG / JPG | Lossy 8x8 DCT Frequency Quantization | YCbCr (4:2:0 Subsampling) | 20KB – 500KB | 100% (Universal Exam & Visa Portals) |
| PNG | Lossless Deflate / LZ77 Filtering | RGB + 8-bit Alpha Channel | 100KB – 2MB | E-commerce, Logos & Digital Design |
| WEBP | VP8 Intra-frame Prediction | YCbCr 4:2:0 / Lossless | 15KB – 300KB | Modern Web Apps & Mobile Display |
Follow these simple steps to optimize and prepare your files secure:
Select or drag your JPG, PNG, or WebP photo into the secure workspace.
Align the crop frame to perfectly center your focal subject or profile photo.
Download the newly formatted photo with transparent edges or 1:1 ratio.
Find answers to common questions about our free online tools.
Lead WebAssembly Systems Engineer at 100KB Tools. Technical specifications researched and cross-verified against official ICAO Doc 9303 Part 9 standards, ISO/IEC 10918-1 JPEG specifications, and PDF/A ISO 19005 guidelines.
Create biometric passport, visa, and ID photos online. Crop, adjust dimensions, remove background, and download official 4x6" and A4 print sheets.
Reduce image file size in KB or MB online. Compress JPG, PNG, and WebP files securely without changing dimensions.
Remove background from images and passport photos online for free in full original quality. Unlike other expensive alternatives, we do not reduce quality.