Are my files ever uploaded to any server or cloud?

Never. FileConvert is 100% client-side. When you drop or select a file, your browser processes the bytes directly in device memory using HTML5 Canvas and pdf-lib. Zero bytes of your sensitive images or documents ever leave your phone or computer. You can verify this by turning off your internet connection—all tools will continue working normally.

Which image formats are supported for compression & conversion?

FileConvert supports all common formats including PNG, JPG/JPEG, WebP, GIF, SVG, and BMP. You can cross-convert between WebP, PNG, and JPG while choosing your exact target quality or specifying an exact target file size in kilobytes (KB).

How does client-side PDF merging work in the browser?

We use pdf-lib, an open-source binary PDF manipulation library running in browser JavaScript. It reads the raw byte streams of your PDF files, parses the page dictionary structures, copies page streams into a consolidated document, and serializes the new PDF binary directly to your local downloads without requiring backend server rendering.

Is there any file size limit?

Unlike traditional online converters that impose 5MB or 10MB limits, FileConvert has zero arbitrary server limits. The only constraint is your device’s available browser memory (RAM). Most modern smartphones and laptops easily process files up to 200MB+ in seconds.

How is performance and low INP (Interaction to Next Paint) maintained?

Heavy operations like image downsampling, quantization, and PDF byte stream packing are scheduled with asynchronous microtasks. This yields control back to the browser main thread between computational steps, ensuring the UI stays fluid at 60fps with minimal input latency during high-resolution processing.

Are my iPhone photos uploaded to any external server?

No. FileConvert decodes HEIC containers and renders PNG files 100% locally in your web browser. No photos or personal metadata are ever sent across the network.

Can I switch to JPG or WebP if I change my mind?

Yes! All output formats (JPG, PNG, WebP) remain completely unlocked. You can freely switch to JPG or WebP at any time with a single tap.

Does this converter support iPhone Live Photos and Burst shots?

Yes. Burst photos and Live Photos are handled safely by isolating the primary full-resolution still frame and exporting it cleanly to PNG.

High-Intent Mobile Preset

Convert iPhone HEIC to PNG Online — 100% Private & Free

Turn iPhone HEIC and HEIF photos into crisp, uncompressed PNGs instantly. Decoded locally in your browser memory — no cloud uploads, zero privacy risk.

Zero server uploadsInstant browser execution100% Free & private

Tap or Drop to Convert iPhone HEIC to PNG

Turn iPhone HEIC and HEIF photos into crisp, uncompressed PNGs instantly. Decoded locally in your browser memory — no cloud uploads, zero privacy risk.

Supports: HEIC, HEIF

Choose Files

Files stay strictly on your device • Instant processing

Compression & Format Settings

Instant client-side hardware tuning

Target Format

Quality Level

85%

Target File-Size Cap

Enable to automatically dial in quality and scale to match your required target file size (e.g. for portals with strict 200KB upload limits).

Dimension Scaling

100%Resolution

How to Convert iPhone HEIC to PNG in 3 Simple Steps

No app download or account creation needed. Runs locally on your smartphone or PC.

Select iPhone Photos

Tap Choose Files to select .heic or .heif photos directly from your iPhone camera roll or desktop folder.

Local High-Precision Decoding

Our on-device WebAssembly engine unpacks the HEIC container and renders pristine raster frames in memory.

Download Sharp PNGs

Download individual lossless PNGs or batch download all converted images in an organized ZIP file.

Lossless iPhone Photo Quality for Graphic Design, Editing & Archiving

When editing iPhone photos in Photoshop, Illustrator, Figma, or professional graphic workflows, lossy JPEG compression artifacts can compromise subtle gradients, sharp lines, and fine details. Converting HEIC to PNG preserves 100% pixel-perfect sharpness without lossy re-compression. FileConvert uses on-device WebAssembly via heic2any and high-definition HTML5 Canvas rendering to export uncompressed, pristine PNGs directly on your device. Zero external cloud servers touch your photos, guaranteeing absolute privacy.

Portal compliance verified

Zero server log retention

Mobile thumb optimized

Technical Specifications

Target Format	PNG (.png)
Accepted Inputs	.heic, .heif, image/heic, image/heif
Target Size Constraint	Optional slider cap (50KB–2000KB)
Processing Engine	heic2any (WebAssembly) & HTML5 Canvas
Privacy Architecture	100% On-Device / Zero Cloud Uploads
Execution Latency	~400–800ms per photo

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