100KB Extension v1.1.1: Compress & resize files in 0ms directly in Google Chrome
Convert Apple HEIC and HEIF photos to standard JPG or PNG images securely. Maintain 100% privacy.
iPhones and iPads capture photos in High Efficiency Image Container (HEIC/HEIF) format by default to save storage space. However, government recruitment portals, university admission servers, and visa systems strictly reject .heic files.
Our HEIC to JPG converter decodes High Efficiency Video Coding (HEVC) image streams locally using browser WebAssembly. It converts 10-bit color planes into standard 24-bit RGB JPEG files, allows target file size caps (under 100KB, 200KB, or 500KB), and preserves EXIF metadata.
| 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 .heic or .heif photos from your iPhone or Mac.
Set JPEG quality level and optional target file size cap.
Click Convert to process HEIC images locally.
Save your universal JPEG images ready for portal upload.
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.
Reduce image file size in KB or MB online. Compress JPG, PNG, and WebP files securely without changing dimensions.
Convert PNG and WebP images to JPG format online instantly. Compress file size to target KB limits for form uploads.
Resize image dimensions in pixels, mm, cm, or inches online. Crop photos in circle, square, or rounded corner shapes.
Drag and drop your file here, or click to browse. Max size 25MB.
iPhones save pictures in `.heic` format. Exam/visa portals reject HEIC. We convert your image securely using AI for privacy.