Why can't this tool produce a real HEIC file?

HEIC (High Efficiency Image Container) is based on the HEVC/H.265 video codec, which is covered by software patents. Apple licenses the codec for iOS and macOS, but web browsers do not include a HEIC encoder. No browser-based tool can generate a standards-compliant HEIC file without this codec.

What is the best way to get a real HEIC file?

On macOS 13+, open the PNG in Preview, then use File → Export and choose HEIC. On iPhone or iPad, photos shot with the camera are already saved as HEIC. You can also use tools like ImageMagick (with HEIC support compiled in) or Adobe Photoshop on a desktop.

Is JPEG a good substitute for HEIC?

For most purposes, yes. A JPEG at quality 85 is visually near-lossless for photographs and is typically 50–70% smaller than the equivalent PNG. HEIC can achieve similar quality at roughly half the JPEG file size, but that difference only matters in storage-constrained scenarios.

Are my images uploaded to a server?

No. The entire conversion runs inside your browser using the HTML5 Canvas API. Your image never leaves your device.

What happens to transparent areas in my PNG?

JPEG does not support transparency. Any transparent or semi-transparent pixels are composited over a solid white background before the JPEG is generated. If you need transparency, keep the original PNG.

What quality setting should I use?

Quality 85 is the recommended default for most photographs — visually near-lossless at roughly half the PNG size. For diagrams or text-heavy images, use 90 or higher. For thumbnails, 65–75 is acceptable.

PNG to HEIC Converter

Name: PNG to HEIC Converter
Availability: InStock
Author: Nham Vu

Upload a PNG, get a high-quality JPEG download — with an honest explanation of why true HEIC conversion requires iOS, macOS, or desktop software.

Why JPEG instead of HEIC?

Browsers cannot encode HEIC — it requires Apple's proprietary HEVC codec. This tool converts your PNG to a high-quality JPEG, the universally supported alternative. For true HEIC output, use macOS Preview (File → Export → HEIC) or iPhone Photos.

Upload PNG

Click or drag a PNG here

PNG files only

JPEG Quality

1 — smallest 100 — best

Need a real HEIC file?

macOS Preview — File → Export → choose HEIC (macOS 13+)
iPhone / iPad — Camera app saves photos as HEIC natively
ImageMagick — command-line tool with HEIC support on Linux/macOS/Windows
Adobe Photoshop — Save As → HEIC (requires macOS with Apple codec)

Preview (JPEG output)

Upload a PNG to see the JPEG preview

Adjust quality to compare sizes in real time

Downloaded!

Summary

Upload a PNG, get a high-quality JPEG download — with an honest explanation of why true HEIC conversion requires iOS, macOS, or desktop software.

How it works

Upload a PNG image by clicking the drop zone or dragging a file onto it.
Adjust the quality slider (1–100) to balance output file size against image clarity.
The preview updates in real time and shows the output file size alongside the original.
Read the HEIC notice to understand your options for true HEIC output on Apple devices.
Click "Download JPEG" to save the converted file to your device.

Use cases

Reduce the file size of PNG screenshots before sharing.
Prepare images for platforms that require a compact format instead of lossless PNG.
Understand why HEIC cannot be produced in a browser and which tools can do it natively.
Preview different quality levels before committing to a final export.
Process images privately without uploading to a third-party server.
Convert design exports from Figma or Sketch into smaller, shareable files.
Strip PNG transparency when a white background is acceptable.
Produce a web-ready image without installing software.

Frequently Asked Questions

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Last updated: 2026-05-29 · Reviewed by Nham Vu