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ConvertStack converts HEIC photos to JPG directly in your browser — nothing is uploaded to a server. Your files stay private on your device throughout the entire process. Built for iPhone and iPad users who need to share or edit photos on Windows, Android, or the web. Drop in one photo or a whole batch, and get JPGs back in seconds. Free tier includes up to 10 files. Pro upgrade unlocks unlimited batch conversion and larger file sizes. Works on all devices and any modern browser.see more

ProductivityPhotographyApple
Feb 24, 2026

Founder

Uunknown

Screenshots

ConvertStack screenshot 1
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About

Are you tired of the constant headache that comes with sharing photos taken on your iPhone or iPad? That high-efficiency HEIC format, while great for saving space on your device, often causes major compatibility issues when you try to send those cherished memories to friends using Windows, upload them to a specific website, or edit them in older software. Introducing ConvertStack, the simple, secure, and lightning-fast solution designed specifically to bridge that gap. We understand that your photos are personal, which is why we built ConvertStack to operate entirely within your web browser. This means zero uploads, zero server processing, and absolute peace of mind. You simply drag and drop your HEIC files—whether it’s a single perfect shot or an entire album—and ConvertStack handles the heavy lifting right there on your local machine, converting them instantly into universally accessible JPG format. It’s about giving you back control over your digital workflow without compromising your privacy.

ConvertStack is engineered for seamless integration into your daily life, whether you’re a busy professional needing to quickly attach images to an email on a work PC, or a casual user wanting to easily post photos to a non-Apple platform. The experience is incredibly straightforward: upload, convert, download. Even if you are dealing with a large batch of images from a recent vacation, our tool manages the entire sequence efficiently. For those who frequently rely on this conversion, our free tier gets you started with up to ten files, giving you a taste of the speed and convenience. If your needs grow, the Pro upgrade removes all limitations, offering unlimited batch conversions and support for larger files, ensuring that ConvertStack remains your go-to utility no matter the volume. Because it runs on any modern browser, you aren't tied down to a specific operating system; it works perfectly whether you are on a Mac, PC, Android tablet, or even Linux, making it the ultimate cross-platform utility for Apple photographers.

Ultimately, ConvertStack isn't just a file converter; it’s a productivity booster that removes a common technological friction point. We took a complex format barrier and turned it into a non-issue, allowing you to spend less time troubleshooting file types and more time enjoying or utilizing your photographs. Think of the time saved and the frustration avoided when sharing those important moments instantly, without needing to install clunky desktop software or rely on third-party cloud services that scan your data. ConvertStack offers speed, security, and simplicity, ensuring your beautiful HEIC images are ready for the world in perfect JPG format, every single time.