Convert files. Without the hassle.
The lightning-fast, zero-upload file transformation engine. Drop files, paste with ⌘V, or batch process entire folders without sending a single byte to the cloud.
Instant Image Converter
Experience the Quality Before You Start
Slide left and right to inspect edge precision and visual fidelity. Zero server latency. Real WebAssembly performance.
![Background Removed (480 KB)](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="800" height="500" viewBox="0 0 800 500">
<defs>
<pattern id="checkers" width="24" height="24" patternUnits="userSpaceOnUse">
<rect width="12" height="12" fill="%2318181b"/>
<rect x="12" width="12" height="12" fill="%2309090b"/>
<rect y="12" width="12" height="12" fill="%2309090b"/>
<rect x="12" y="12" width="12" height="12" fill="%2318181b"/>
</pattern>
<linearGradient id="portraitGrad2" x1="0%" y1="0%" x2="0%" y2="100%">
<stop offset="0%" stop-color="%23f8fafc"/>
<stop offset="100%" stop-color="%2394a3b8"/>
</linearGradient>
</defs>
<!-- Transparent Checkerboard Canvas -->
<rect width="800" height="500" fill="url(%23checkers)"/>
<!-- Exactly isolated Portrait with Alpha Transparency -->
<circle cx="400" cy="220" r="95" fill="url(%23portraitGrad2)"/>
<path d="M400,120 C425,120 480,140 480,210 C480,230 465,245 465,245 C465,245 450,170 400,165 C350,170 335,245 335,245 C335,245 320,230 320,210 C320,140 375,120 400,120 Z" fill="%230f172a"/>
<path d="M260,500 C260,390 320,340 400,340 C480,340 540,390 540,500 Z" fill="%233b82f6"/>
<path d="M360,340 L440,340 L425,430 L375,430 Z" fill="%231e293b"/>
<text x="400" y="475" font-family="-apple-system, sans-serif" font-size="16" font-weight="700" text-anchor="middle" fill="%2310b981">✨ Instant Cutout • 480 KB (Transparent PNG)</text>
</svg>)
![Original Photo (3.4 MB)](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="800" height="500" viewBox="0 0 800 500">
<defs>
<linearGradient id="sky" x1="0%" y1="0%" x2="100%" y2="100%">
<stop offset="0%" stop-color="%231e1b4b"/>
<stop offset="40%" stop-color="%234338ca"/>
<stop offset="70%" stop-color="%23ec4899"/>
<stop offset="100%" stop-color="%23f59e0b"/>
</linearGradient>
<linearGradient id="portraitGrad" x1="0%" y1="0%" x2="0%" y2="100%">
<stop offset="0%" stop-color="%23f8fafc"/>
<stop offset="100%" stop-color="%2394a3b8"/>
</linearGradient>
</defs>
<rect width="800" height="500" fill="url(%23sky)"/>
<circle cx="680" cy="120" r="60" fill="%23fef08a" opacity="0.8"/>
<path d="M0,500 L800,500 L800,380 L650,420 L500,370 L350,430 L200,390 L0,440 Z" fill="%230f172a" opacity="0.6"/>
<!-- Central Character Portrait -->
<circle cx="400" cy="220" r="95" fill="url(%23portraitGrad)"/>
<path d="M400,120 C425,120 480,140 480,210 C480,230 465,245 465,245 C465,245 450,170 400,165 C350,170 335,245 335,245 C335,245 320,230 320,210 C320,140 375,120 400,120 Z" fill="%230f172a"/>
<path d="M260,500 C260,390 320,340 400,340 C480,340 540,390 540,500 Z" fill="%233b82f6"/>
<path d="M360,340 L440,340 L425,430 L375,430 Z" fill="%231e293b"/>
<text x="400" y="475" font-family="-apple-system, sans-serif" font-size="16" font-weight="700" text-anchor="middle" fill="%23ffffff">Original Photo • 3.4 MB (Raw Background)</text>
</svg>)
Engineered for High-Frequency Workflows
We stripped out low-intent bloat to focus entirely on the four most demanded image utilities in the world.
Apple iPhone HEIC Lifesaver
Shot photos on your iPhone that won't upload to Windows, school portals, or government forms? Convert camera roll bursts into universal JPEG or PNG in milliseconds without touching a server.
Government & Visa Portal Compressor
Strict 100 KB or 200 KB upload limits on passport, visa, or exam registration portals? Our binary-search quantizer locks the exact byte ceiling with zero visible artifacting.
AI Background Remover
Studio-grade portrait, subject, and product cutouts with neural edge segmentation running directly on your device's graphics chip. No $20/month cloud bills, no limits, no uploads.
Precision Aspect Resizer & Cropper
Scale to exact pixel dimensions or standard aspect ratios (1:1 Instagram, 16:9 Landscape, 9:16 Reel, 2x2 Passport) with bicubic resampling, aspect-ratio locking, and batch export.
The Zero-Compromise Engine
Why modern developers, creators, and professionals switch from legacy cloud converters.
Upload Latency
Files are processed directly inside your browser's WebAssembly threads. No server upload queue, no download delay.
Sent to Cloud
Your personal photos, confidential documents, and IDs never touch our servers or leave your hardware.
Global Clipboard
Copy any screenshot or web asset and press ⌘V anywhere on the page to convert, compress, or cutout immediately.
Free & Limitless
No subscriptions, no rate-limiting, no credit tokens. Because it runs on your device, processing is completely unrestricted.
Convert Any Image in 3 Simple Steps
Zero accounts. Zero installations. Zero subscription traps.
Drop or Paste Files
Drag and drop files, select folders, or simply hit ⌘V anywhere to paste from your clipboard.
Select Format or Target
Choose JPG, PNG, WebP, or AVIF. Target exact sizes like 100KB or 200KB with one click.
Instant Download or Copy
Download converted images immediately, bundle everything in a ZIP, or copy directly to clipboard.
Frequently Asked Questions
Are my files uploaded to a remote server?
No. All conversion, compression, and editing happens 100% locally inside your browser using client-side WebAssembly, WebGPU, and Canvas technology. Your files never leave your device.
Why is Convert.cool faster than traditional online converters?
Traditional converters require uploading multi-megabyte files to a remote server, waiting in a server queue, waiting for processing, and then downloading the result. Convert.cool processes files directly on your computer's CPU/GPU with WebAssembly, eliminating upload and download bottlenecks entirely.
Can I paste images directly from my clipboard?
Yes! Simply press ⌘V (Mac) or Ctrl+V (Windows) anywhere on the page, and your copied screenshot or photo will instantly load into the converter.
What image formats are supported?
Convert.cool supports input and output across JPEG, PNG, WebP, AVIF, and JPEG XL (JXL), plus decodes Apple HEIC/HEIF photos, professional camera RAW formats (DNG, CR2, CR3, NEF, ARW, RAF), and multi-page TIFF images.
Is there any file size limit or daily conversion quota?
There are no artificial file size limits or daily quotas. Because processing runs on your own device's hardware rather than a metered cloud server, you can convert as many images as your computer or phone memory can handle.
Can I convert multiple files at once?
Yes. You can select multiple images, drop an entire folder, or paste from your clipboard. You can download results individually, batch download them as a ZIP archive, or save them directly into a local folder.