How to Convert JPG to HEIC Format for iPhone & Mac

About HEIC Format

HEIC is an image format that you will find on Apple devices, like iPhones and iPads. Apple started using it as the default photo format with iOS 11 and macOS High Sierra. Unlike the older JPEG format, HEIC is designed to keep photos looking sharp without taking up as much storage space. It is based on the HEIF standard and uses HEVC compression to reduce file size efficiently. This is helpful if you take lots of photos and want to save space on your phone. The only drawback is that some older apps and devices may not support HEIC files.

Convert JPG to HEIC Online

• Click a web browser and go to an online utility like Convertio JPG to HEIC Converter or ToolsBox JPG to HEIC.

•  Upload or drag-and-drop your JPG file onto the page.

• Select HEIC as your target format.

• Process the transition and download your new HEIC image.

Converting your legacy images from JPG to HEIC allows you to cut file sizes by up to 50% while preserving original visual sharpness, vivid color ranges, and camera metadata. Whether you need to free up iCloud storage on your iPhone, optimize photo archives on macOS, or process multiple pictures at once, this guide covers the most efficient native and online methods to convert JPG to HEIC without losing resolution.

If you need an immediate solution without configuring system settings or installing software, you can use the free QuickConvertPDF JPG to HEIC converter to upload, process, and download your files in seconds.

What Is HEIC and Why Convert JPG to HEIC?

HEIC (High Efficiency Image Container) is Apple’s implementation of the HEIF (High Efficiency Image File Format) standard developed by the Moving Picture Experts Group (MPEG). Adopted as the default photo format across iOS and macOS, HEIC relies on advanced HEVC (H.265) compression algorithms.

While the traditional JPEG format has served the internet since 1992, it uses older discrete cosine transform compression that struggles with modern high-megapixel sensors. Here is why upgrading your JPG photos to HEIC is advantageous:

• Dramatic Storage Savings: HEIC images occupy roughly half the disk space of a standard JPEG file of identical visual fidelity.
• Superior Color Depth: While standard JPG supports only 8-bit color (16.7 million colors), HEIC supports up to 16-bit color, eliminating banding across skies and subtle gradient transitions.
• Metadata Retention: HEIC encapsulates rich EXIF metadata, including focal length, shutter speed, ISO, geolocation coordinates, and color profiles.
• Transparency Support: Unlike JPG, which requires a solid white or colored background, HEIC supports 8-bit alpha channels for transparent elements.

Method 1: Convert JPG to HEIC Online Using QuickConvertPDF

The fastest cross-platform method to change photo formats is using a dedicated cloud converter. This avoids complex shortcut configurations on mobile devices and works seamlessly on Windows, macOS, and Linux.

Step-by-Step Instructions:

1. Navigate to the QuickConvertPDF JPG to HEIC tool in your web browser.
2. Click Choose Files or drag and drop your JPG or JPEG images directly into the upload container.
3. Select your target compression preferences to maintain original resolution.
4. Click Convert to process your images through the automated conversion engine.
5. Download your individual HEIC photos or grab the entire batch as an organized archive.

Method 2: How to Convert JPG to HEIC on Mac (Native Methods)

macOS provides two built-in ways to convert JPG to HEIC Mac users can access without installing third-party utilities.

Option A: Using the Preview App (Single or Multiple Images)

The native macOS Preview app allows both individual and bulk conversion:

1. Select the JPG files you want to convert in Finder.
2. Right-click and select Open With > Preview.
3. If converting multiple files, press Command + A in Preview's left thumbnail sidebar to select all items.
4. In the top menu bar, click File > Export Selected Images… (or File > Export for a single image).
5. Click the Format drop-down menu and choose HEIC.
6. Select your destination folder and click Choose to save your newly generated HEIC files.

Option B: Using Finder Quick Actions (Instant Bulk Conversion)

On macOS Monterey, Ventura, and Sonoma, you can perform a batch convert JPG to HEIC Mac command directly from your desktop:

1. Highlight your JPG images in Finder.
2. Right-click the selection and hover over Quick Actions.
3. Select Convert Image.
4. In the pop-up window, set the Format to HEIC and choose Image Size as Actual Size.
5. Ensure the toggle for Preserve Metadata is checked, then click Convert to HEIC.

Method 3: How to Convert Photo to HEIC on iPhone and iPad

If your iPhone camera is saving files as JPG or you received JPEGs via WhatsApp or email, you can convert them back to HEIC directly on iOS.

Option A: Create an Automated "JPG to HEIC" iPhone Shortcut

The built-in Apple Shortcuts app allows you to automate image processing:

1. Open the Shortcuts app on your iPhone or iPad.
2. Tap the + icon in the top-right corner to create a new shortcut.
3. Tap Add Action, search for Select Photos, and enable Select Multiple.
4. Search for the next action: Convert Image. Tap JPEG in the action box and change it to HEIF (iOS labels HEIC containers as HEIF).
5. Search for and add the Save to Photo Album action.
6. Name the shortcut Convert to HEIC and tap Done. Run it whenever you want to convert existing camera roll photos.

Option B: Configure iPhone Camera to Capture in HEIC by Default

To ensure future photos take advantage of Apple High Efficiency storage automatically:

• Open the Settings app on your iPhone.
• Scroll down and tap Camera.
• Tap Formats at the top of the menu.
• Select High Efficiency instead of Most Compatible.

Selecting High Efficiency instructs your device to store captures in HEIC format and record 4K 60fps video using HEVC, conserving substantial internal storage.

HEIC vs. JPG: Side-by-Side Comparison

To understand the architectural trade-offs between legacy and modern image standards, review the technical breakdown below:

Best Practices for Quality and EXIF Preservation

When converting existing JPG files to HEIC, follow these technical best practices to prevent generational quality loss:

• Avoid Double Compression: JPG is already a lossy format. When converting to HEIC, always use high-quality encoding (quality settings of 85–90% or "Actual Size") to prevent visual compression artifacts around fine details.
• Preserve EXIF Tags: Ensure your conversion tool or workflow maintains original creation dates, GPS coordinates, and camera profiles. This guarantees that your Apple Photos timeline and search albums remain properly categorized.
• Complementary Document Workflows: If your images are scanned forms or contracts, converting them to HEIC saves photo storage. If you need to extract the raw text from those receipts or invoices, pass the image through our free image to text OCR tool before archiving.
• Handling Web Optimization: If you run a website and want modern compression that works across all desktop and mobile browsers (including Google Chrome and Firefox), consider converting to WebP using our JPG to WebP converter or WebP to HEIC tool.

Troubleshooting Common Conversion Issues

• Windows Cannot Open Downloaded HEIC Files: Windows 10 and 11 do not include native HEIF codecs out of the box. Install the official "HEIF Image Extensions" from the Microsoft Store, or use QuickConvertPDF to change HEIC back to JPG.
• Website Upload Rejections: Many content management systems and government submission portals still do not accept the .heic file extension. Keep a standard JPG copy for external document submissions.
• Color Profile Shifts: If your JPG was saved in CMYK print mode, some converters may display washed-out colors when converting to HEIC. Always ensure your source images are in sRGB or Display P3 color spaces prior to conversion.

Frequently Asked Questions

Conclusion: Streamline Your Photo Library Today

Converting legacy images from JPG to HEIC is one of the most effective strategies to reclaim local storage across your Mac and iPhone devices without compromising photographic detail. By leveraging native macOS Quick Actions, configuring iOS Camera Formats, or using our browser-based tools, you can seamlessly adapt your image library to modern Apple standards.

Ready to transform your photo collection? Visit the QuickConvertPDF JPG to HEIC converter now to process single photos or entire batches in seconds for free.