How PNG to HEIC conversion works
PNG is popular for graphics and screenshots because it stays crisp and lossless. HEIC (HEIF) is popular on iPhone because it stores images efficiently while keeping good visual quality. This converter redraws each PNG image onto a canvas and then encodes it as HEIC, entirely in your browser.
Need transparency kept? Use our PNG to WEBP Converter. Need the reverse conversion? Use this HEIC to PNG Converter.
When to use this tool
Use the PNG to HEIC tool whenever you:
- Want smaller files for PNG screenshots and exports you store on iPhone.
- Prefer keeping a consistent HEIC library inside Apple Photos.
- Have many PNG graphics and want a more Apple-friendly storage format.
- Need batch conversion without uploading images to any server.
Step-by-step: from PNG to compact HEIC
Converting your images follows a short, repeatable routine:
- Add your PNG files. Drag files into the drop area or click to choose them from your device.
- Adjust quality. Use the slider to balance HEIC file size and detail.
- Optionally keep basic metadata. Where supported, the tool respects key information such as creation date and orientation.
- Convert. Start the conversion and wait for each file to be processed locally in your browser.
- Save your HEICs. Save files one by one or use the “Save all HEICs” button once everything is ready.
Privacy, limits and how this tool treats your images
FileYoga follows a simple rule: your files stay with you. This converter runs locally in your browser — nothing is uploaded or stored on a server.
Local-only conversion
Images are processed in your browser. We do not upload, scan or store your files on FileYoga servers.
No hidden copies
When you clear the list or close the tab, the tool stops using your files and does not save copies on a server.
No artificial limits
No paywalls or quotas. The only limits come from your device’s memory and your browser.
No account required
Use the converter without signing up. Open the page, convert your images, and leave when you are done.
Limits to know about:
- Transparency: HEIC won’t keep PNG alpha in this workflow. Transparent PNGs should stay PNG or be converted to WEBP instead.
- Compatibility: HEIC is great on iPhone/iPad/macOS, but some Windows apps and older software may not open HEIC files.
- Device memory: Large images and big batches can slow or crash the tab. Convert in smaller groups if needed.
- Metadata: Some browsers can’t preserve all metadata through a canvas export. Keep the original PNG if metadata matters.
Quality and file size for HEIC
HEIC is designed to store photo-like images efficiently. The slider in this tool lets you choose how much detail to keep versus how small you want the file to be. Higher values keep more detail but create larger files.
Helpful for large batches, quick sharing and general storage where smaller files matter most.
A strong everyday setting. Images look clean in Apple Photos and keep good detail without becoming huge.
Best for archiving important images or keeping extra detail for cropping later. Files will be larger.
If you are unsure where to start, use the default setting and adjust only if files feel too large for sharing or you want to keep more fine detail.
What happens to image information
Digital images can carry extra information such as the date, time, and orientation. This tool lets you choose whether to:
- Keep basic metadata: helpful for sorting images by date or keeping them upright automatically.
- Remove metadata: useful when sharing graphics publicly or when you want leaner, more anonymous files.
For PNG exports and screenshots, metadata is often minimal. If you are importing into Apple Photos, keeping basic info can still be convenient. For public sharing, turning it off can help keep files cleaner.
Tips for best results
- Transparency warning: HEIC is not a safe choice for alpha transparency. If your PNG has a transparent background (logos, stickers, overlays), keep PNG or convert to a format that supports transparency.
- PNG is lossless. Converting to HEIC can reduce file size, but it may introduce compression artifacts on sharp edges, text, or UI screenshots. If crisp text is critical, keep the PNG as your master.
- If you need maximum compatibility with older apps or Windows workflows, keep a PNG or JPG copy too. HEIC is great for Apple workflows, but not every app handles it perfectly.
- Because everything runs in your browser, conversion speed depends on your device and the size and number of PNG files you add at once.
Troubleshooting
- My transparent PNG turned solid/black/white. HEIC won’t preserve transparency here. Keep PNG or convert to WEBP instead.
- HEIC won’t open on my computer. Some apps don’t support HEIC. Convert back using HEIC to PNG, or use JPG for compatibility.
- Text looks softer after conversion. HEIC compression can soften UI text and sharp edges. Increase the quality slider or keep PNG for screenshots/design exports.
- Conversion is slow or fails. Large images and big batches can hit memory limits. Convert fewer files at once and close other heavy tabs.
- Metadata didn’t carry over. Some browsers drop metadata during export. Keep the original PNG if metadata is important.
Frequently asked questions
No. HEIC is best treated as a photo-style format and is not reliable for transparency in this workflow. If your PNG has a transparent background (logos, icons, overlays), keep PNG or use a transparency-friendly format like WEBP.
PNG is lossless and keeps hard edges perfectly. HEIC is usually compressed, which can soften sharp text, UI lines, or flat-color graphics. If crisp text is critical, keep the PNG as your master copy.
Some PNGs are already small (especially simple graphics). HEIC tends to help most on large screenshots, high-resolution images, or busy visuals. If size matters most, try lowering the quality slider and convert again.
No. The tool keeps your image dimensions the same. It only changes the file format from PNG to HEIC.
Many browsers can’t reliably carry full metadata through a canvas-based conversion. For PNGs, metadata is often minimal anyway, but if metadata is important, keep the original PNG as your master.
No. Everything happens locally in your browser. Your PNGs are never uploaded to FileYoga servers, and the only downloads are the HEIC files you choose to save.
There’s no artificial limit. The practical limit is your device memory and your browser. If the tab slows down, convert in smaller batches (for example 10–30 files at a time).
HEIC support varies across apps and operating systems. It’s strongest on Apple devices. If you need compatibility, convert your HEIC to PNG or JPG for easier sharing and editing.