Image Tools
Convert Images Instantly
Drop your image here
or click to browse — JPG, PNG, WebP, AVIF, BMP, GIF, HEIC
Why Use Scascan Image Converter?
Most online converters upload your file to a cloud server. We don't. Everything runs locally in your browser.
Total Privacy
Your images never leave your device. No server, no storage, no data collection.
Instant Conversion
Client-side Canvas API processing — most images convert in under a second.
Smart Presets
Result-focused presets for Web, Instagram, E-commerce, Email — no format expertise needed.
How to Convert Images Online
Upload
Drop any JPG, PNG, WebP, AVIF, BMP or GIF into the zone
Choose Preset
Pick Web, Instagram, E-commerce, or custom quality
Convert
Browser converts instantly — no upload, no wait
Download
Slide to compare before/after and download the result
JPG vs PNG vs WebP vs AVIF — Which Format Wins?
Use this guide to pick the best format for your specific use case.
| Format | File Size | Transparency | Quality Loss | Browser Support | Best For |
|---|---|---|---|---|---|
| JPG | Small | ❌ | Yes (lossy) | Universal | Photos, email, print |
| PNG | Large | ✅ | No (lossless) | Universal | Logos, UI, screenshots |
| WebP | Very Small | ✅ | Optional | 96%+ browsers | All web images |
| AVIF | Smallest | ✅ | Optional | Modern browsers | Future-proof web |
| BMP | Very Large | ❌ | No | Universal | Windows legacy |
| GIF | Medium | ✅ | Quantized | Universal | Simple animations |
Use Cases — Websites, Shopify, Social Media & More
For Websites
- Convert all images to WebP for speed
- Reduce LCP time with smaller files
- Use AVIF for Lighthouse 100 scores
For Shopify
- Bulk convert product images to WebP
- Reduce file size without losing detail
- Faster storefront = more conversions
For Social Media
- Instagram preset: 1080px, JPEG 88%
- Prepare OG images as JPG
- Reduce file size for faster shares
For Email
- Auto-target under 200 KB per image
- JPG 75% is ideal for email clients
- Avoid attachment size limits
For Mobile
- Smaller images = less mobile data
- WebP loads 2x faster on mobile
- Improve mobile Lighthouse score
For Developers
- Batch convert assets before deployment
- Test AVIF vs WebP file sizes
- Generate multiple format fallbacks
Format Guide: Which to Choose?
Google's modern format. Supported by all major browsers. 25–35% smaller than JPG at the same quality. Supports transparency like PNG.
Best for:
- Website images
- Blog thumbnails
- Product galleries
- Social media assets
AV1-based codec. Up to 50% smaller than JPG. Royalty-free, open standard. Chrome, Firefox, Safari 16+ support it.
Best for:
- Future-proof web assets
- High-density displays
- Mobile-optimized images
- Modern web apps
The most universal format. Works everywhere. Best for photographs. Lossy compression with excellent visual quality at 80–90%.
Best for:
- Photography
- Email attachments
- Social media posting
- Legacy system compatibility
Lossless compression with transparency support. Larger files but pixel-perfect quality. Ideal for logos, icons, screenshots.
Best for:
- Logos & branding
- UI screenshots
- Transparent backgrounds
- Print-ready graphics
Zero-Upload Privacy Architecture
Your images are processed using the browser's native Canvas API. Nothing ever leaves your device. No servers. No logs. No third-party APIs. GDPR-compliant by design.
Frequently Asked Questions
Do you upload my images to a server?
Never. All conversion happens inside your browser using the HTML5 Canvas API. Your images are not sent anywhere — not to our servers, not to any third party.
What is AVIF and why should I use it?
AVIF (AV1 Image File Format) is the newest image format offering up to 50% better compression than JPEG at the same visual quality. It's royalty-free and supported in Chrome, Firefox, Edge, and Safari 16+. Use it for bleeding-edge web performance.
Which format should I use for my website?
WebP is the recommended choice for most websites — supported by 96%+ of browsers, 25-35% smaller than JPG, and supports transparency. Use AVIF if you want maximum compression and your audience uses modern browsers.
Can I convert multiple images at once?
Yes! Switch to Bulk Convert mode and upload up to 20 images. Each file is converted individually with a progress tracker, and you can download them all with one click.
What's the maximum image size?
There is no server-side limit since everything runs locally. The practical limit depends on your device's RAM — most modern devices handle images up to 50 MP without issues.
Does this work on mobile?
Yes, fully. The tool is responsive and touch-friendly. Drag and drop works on mobile too. Processing speed depends on your device's CPU.
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