Free Online Image Converter HEIC · PNG · WebP to JPG — Free
Swift JPG converts HEIC, PNG, WebP, and JPG images directly in your browser — no file uploads, no account, no cost. Your images never leave your device.
Swift JPG is a free, browser-based image converter that processes HEIC, PNG, WebP, and JPG files entirely on your device using WebAssembly — no server upload, no account required.
How to Convert Images
Simple, fast, and secure process.
Upload
Drag & drop files or folders (HEIC, PNG, WebP) into the zone.
Adjust
Set quality (0-100%), target size, or resize dimensions.
Convert
Auto-processing starts instantly via WebAssembly engine.
Download
Save individually or download all as a ZIP archive.
Supported Formats & Output Quality
See exactly what you can convert and what output quality to expect.
JPG / JPEG
The universal standard for photos. Uses lossy compression to significantly reduce file size.
Matches Technical specs
Privacy Architecture:
The "Local-First" Difference
Most online converters upload your private files to a remote server. Swift JPG is different. We engineered a serverless solution using WebAssembly.
Local Processing
Your browser does the heavy lifting using compiled WASM modules. It's faster because there's no upload/download latency.
Zero Server Upload
Check your network tab—files never leave your device. We literally cannot see, store, or share your images.
Offline Capable
Once the page manages to load, you can disconnect Wi‑Fi and continue converting. The app lives in your browser cache.
No Data Retention
There is no cloud storage to hack. Closing the tab instantly wipes all processed data from your browser's memory.
Swift JPG vs Other Online Converters
Why browser-based, privacy-first conversion outperforms server-side tools.
| Feature | Swift JPG | CloudConvert | ILoveIMG | Squoosh |
|---|---|---|---|---|
| Files uploaded to server | Never | Yes | Yes | Never |
| Batch conversion (multiple files) | ✓ | ✓ | ✓ | ✗ |
| HEIC support | ✓ | ✓ | ✓ | ✗ |
| Works offline after first load | ✓ | ✗ | ✗ | ✗ |
| Target file size control | ✓ | ✗ | ✗ | ✗ |
| Free, no daily limits | ✓ | Paid plan | Limited free | ✓ |
| No signup required | ✓ | Required | ✓ | ✓ |
HEIC Converter for iPhone, Windows & Android
🍏 Apple Ecosystem
Challenge
iPhones shoot in HEIC by default since iOS 11.
Solution
Use our converter to change HEIC to JPG before transferring to Windows PC or Android devices.
🪟 Windows 10/11
Challenge
Native Photos app often requires a $0.99 "HEIF Extension" from the Microsoft Store.
Solution
Convert to JPG here for free instead of buying the extension. Or convert WebP to PNG.
🤖 Android
Challenge
Sharing high-res WebP or HEIC files via WhatsApp/Telegram can sometimes trigger errors.
Solution
Convert to standard JPG. Our tool features a mobile-responsive UI for Android.
Real-World Use Cases
Who uses Swift JPG and why?
Photography Portfolios
Compress high-res shoots for website galleries without losing visual detail. Compress JPG →
E-Commerce
Standardize product images to white-background JPGs for Amazon/eBay/Shopify requirements. Convert to JPG →
Web Performance
Convert heavy PNGs to WebP/AVIF to improve Google PageSpeed (LCP) scores. Start converting →
Documents & Forms
Resize scans to under 200KB for government portals and visa applications. Resize JPG →
Social Media
Crop and format landscape photos for Instagram Stories (9:16) or Posts (4:5). Crop JPG →
Email Attachments
Compress images to avoid hitting the 25MB attachment limit in Gmail/Outlook. Compress JPG →
Compress JPG
Reduce file size while preserving quality
Resize JPG
Scale images by pixel or percentage
Crop JPG
Trim images to exact aspect ratios
Convert to JPG
Turn PNG, HEIC, WebP into standard JPG