Convert HEIC to WebP — iPhone Photos, Anywhere
Turn your iPhone HEIC photos into WebP that opens on every device and uploads to every service. No Mac, no paid Windows codec, no cloud service required. EXIF and GPS preserved.
In-browser HEIC → WebP conversion
Drop your .heic or .heif files below. The decoder is libheif + libde265 compiled to WebAssembly — the same code Apple uses, running inside your browser tab. Your photos never leave your device.
Supported input formats
- ✓ JPG / JPEG — Photos, portraits, web content
- ✓ PNG — Screenshots, icons, transparent images
- ✓ HEIC / HEIF — iPhone photos, Apple formats
- ✓ TIFF — Scans, prints, high-resolution archives
- ✓ GIF — Animations and static GIFs
- ✓ BMP, PSD & more — Anything ImageMagick can decode
How the conversion works
- 1. DropDrag files or a whole folder into the box below. Folder structure is preserved in the output ZIP.
- 2. AnalyzeEach image is analyzed for entropy and content type. The engine picks per-image quality settings targeting PSNR ≥ 44.5 and SSIM ≥ 0.95.
- 3. EncodeConversion runs on all of your CPU cores in parallel via Web Workers. EXIF, ICC color profiles and geolocation are copied onto the WebP output.
- 4. DownloadWhen the batch is done, a ZIP containing every converted WebP downloads automatically. No re-upload, no waiting on a server.
HEIC is great — except when you can't open it
Apple's HEIC format is technically excellent but ecosystem-locked. WebP gives you the same compression story without the compatibility pain.
Why HEIC is painful outside Apple
HEIC is Apple's default photo format since iOS 11 (2017). It is technically excellent — HEVC-based, roughly half the size of JPG at the same quality — but the rest of the world can't open it. Windows needs a paid codec, most cloud galleries reject it, and Android cameras don't produce it. If you airdrop photos off your iPhone and suddenly can't use them, HEIC is why.
WebP: HEIC's quality, universal compatibility
WebP reaches roughly the same compression ratio as HEIC (within about 10% on photographs) but is supported by every modern browser, operating system and image editor. Convert once and the result works everywhere — email, Slack, WhatsApp, Google Docs, your blog CMS, CDN image pipelines, you name it.
No Apple device, no cloud service required
SciZone's HEIC decoder is libheif + libde265, compiled to WebAssembly. It runs in the browser tab on any OS. You do not need an iPhone, a Mac, iCloud, HEIC Image Extensions, or a Dropbox conversion pipeline. Drop the .heic files from any device that has them (including a Windows File Explorer folder you copied off a phone).
Capture time, GPS and camera info survive
When you export from iPhone, the EXIF block is unusually rich — lens ID, sensor data, exposure bias, GPS at 10 decimal places, even the camera orientation. SciZone copies all of that onto the WebP output using exiv2, so your Google Photos timeline and your photographer's workflow stay intact.
HEIC vs WebP at a glance
| Criterion | HEIC / HEIF | WebP |
|---|---|---|
| Typical file size for photos | 100% | 90–110% (roughly the same) |
| Compatibility on Windows | Paid codec required | Native in every browser |
| Compatibility on Android | Partial, Samsung-only-ish | Universal |
| Upload to most web services | Usually rejected | Always accepted |
| Opens in browsers directly | No | Yes |
| Animation / Live Photo | Proprietary wrapper | WebP animation supported |
| License concerns | HEVC royalties | Royalty-free |
How to convert HEIC to WebP
Four steps, works on any OS, nothing to install.
- 1
Copy HEIC files off your iPhone
AirDrop to Mac, connect via USB, use iCloud Photos, or download from Google Drive. You can also drop a whole iPhone export folder — SciZone recognises .heic, .heif and .HEIC extensions.
- 2
Drop files into SciZone
Drag them onto the drop zone below. The HEIC decoder (libheif + libde265, compiled to WebAssembly) runs locally — no Apple tools, no cloud service involved.
- 3
Automatic decoding and encoding
Each HEIC is decoded to raw pixels, analyzed for quality targeting, then re-encoded as WebP. EXIF (including GPS and capture time) is copied across automatically.
- 4
Download the universal WebP ZIP
When the batch finishes, a ZIP downloads with every photo as WebP. Upload anywhere, share with anyone — no more codec errors.
Typical Results
See how much space you can save. Quality stays the same, file sizes shrink dramatically. Click images to view full size.
Average Results
Based on thousands of optimized images
HEIC to WebP — Frequently Asked Questions
Can I convert HEIC on Windows without installing anything?
Yes. SciZone runs in any modern browser (Edge, Chrome, Firefox, Opera) on Windows. There is nothing to install — no Microsoft HEIC Image Extensions, no CopyTrans, no paid codec. Just drop the files into the page.
Do I need an iPhone or a Mac to convert HEIC?
No. The converter runs entirely in a browser tab. If you have .heic files — whether from an iPhone, a recovered backup, a Samsung phone set to HEIF mode, or a studio camera — you can convert them on any OS.
Will the EXIF data and GPS location be preserved?
Yes. All EXIF fields including GPS coordinates, capture time, camera make and model, lens info and orientation are copied onto the WebP output. If you later want to strip that metadata for sharing, use a separate privacy tool — SciZone's default is full fidelity.
Can I convert a whole iPhone photo library at once?
Yes. Export your iCloud Photos or iPhone camera roll to a folder, drop the folder on SciZone, and it will batch-convert everything. For libraries of thousands of photos we recommend processing in chunks of ~1500 at a time so your browser doesn't run out of RAM.
What about Live Photos?
Live Photos are a HEIC still frame plus a MOV sidecar file. SciZone converts the still frame to WebP (the visual result you would normally share). The MOV sidecar is ignored — extract it separately if you need the motion.
Is SciZone safer than uploading HEIC to an online converter?
Yes, by design. HEIC files from an iPhone often contain GPS and personal metadata. Uploading them to an unknown web converter exposes both the images and their metadata to a third party. SciZone never uploads — the conversion runs inside your browser tab, which you can verify in DevTools.
Does HEIC→WebP lose quality?
Both formats are lossy, so strictly speaking you are re-encoding. In practice SciZone targets PSNR ≥ 44.5 which is effectively indistinguishable from the source. Going HEIC→WebP→JPG→WebP would accumulate artifacts, but a single HEIC→WebP hop is visually clean.
Why not just convert HEIC to JPG?
You can, but you will lose 25–35% of the file size advantage for no benefit — JPG is an older codec. WebP matches HEIC's efficiency while being universally accepted. Converting to JPG only makes sense if a specific tool in your pipeline does not yet support WebP.
Why Choose SciZone?
We're not just another optimizer. We engineered a fundamentally better solution.
| Feature | SciZone (You're here) | Other Optimizers |
|---|---|---|
| CPU Utilization
How processing power is used
| True Multi-Threading Intelligently uses all CPU cores without overloading your system | Single-Threaded Uses only one CPU core, wastes available power |
| Quality Settings
How compression is optimized
| Unique Per Image Algorithm analyzes each photo and picks optimal settings | One-Size-Fits-All Same settings for every photo, inconsistent quality |
|
Metadata & Color Profiles
Preservation of image data
| Fully Preserved EXIF, color profiles, geolocation. Everything stays intact | Often Stripped Color profiles lost, metadata incomplete |
|
Quality-Size Balance
Optimization results | Perfect Balance Maximum compression with imperceptible quality loss | Inconsistent Either too large or noticeable quality loss |
The Bottom Line
Every photo is unique. Our intelligent algorithm understands this and analyzes each image individually to find the perfect balance between file size and quality. We utilize your computer's full power without overloading it, preserving every detail of your metadata and color profiles. Your files are smaller, faster, and absolutely perfect. 🎯