twineconvert

free · in-browser · no upload

HEIC to JPG
Converter

Drop your HEIC file. We'll convert it to JPG right here in your browser, your file never leaves your device.

or drop your file

Select your file here to get started

or drop your file here.

Accepts .heic, .heif

nothing uploaded no file size cap no signup

How it works

Three steps. No upload, no signup.

  1. 1

    Drop your file

    Click the dropzone above or drag a HEIC from your desktop. Files of any size, there's no upload, so there's no upload limit.

  2. 2

    Convert in your browser

    The conversion runs entirely in this tab using JavaScript and WebAssembly. Your file never touches our servers, we don't have any.

  3. 3

    Download

    Get your JPG the moment the conversion finishes. Convert another, or close the tab.

Files stay on your device

Your file is never uploaded. The entire conversion runs in your browser using WebAssembly. We can't see what you convert because we have no server to see it.

No file size limit

Server converters cap free users at 1-2 GB and gate larger files behind a paid plan. Since nothing uploads, our limit is whatever your browser can handle.

Free, no signup, no ads on conversions

No account required. No watermark on the output. No queue. Drop a file, get a converted file.

Why convert HEIC → JPG

What this conversion is actually for

HEIC is the format every iPhone since 2017 saves photos in, and most non-Apple software still can't open it: Windows without the paid codec, older Android phones, web upload forms, print kiosks. JPG is the universal fallback every device and website accepts. Bonus: the conversion strips the GPS coordinates and camera serial number Apple embeds in HEIC EXIF.

A real example

You're applying for a visa and the portal demands a JPG photo, max 2MB. Your iPhone shot it as a 3.5MB HEIC the portal flat-out rejects. Convert here, get a compliant JPG, upload.

Troubleshooting

"HEIC decode failed" on a photo that opens fine in Apple Photos.

Modern iPhones (2022+) write HEIC profiles, Live Photos, HEVC main-10, edited photos, that older decoders reject. We use libheif (current build) which handles these. If a specific file still fails, paste the iPhone model + whether it's a Live Photo / edited, and we'll dig in.

The colors look slightly off vs. the iPhone.

iPhone HEICs are often in the Display P3 wide-gamut color space; JPG is typically sRGB. We convert P3 → sRGB which can desaturate very vivid colors slightly. This is correct behavior for compatibility, most screens and printers are sRGB anyway.

Formats involved

About HEIC and JPG

HEIC, High Efficiency Image Container

HEIC is the format your iPhone saves photos as by default since iOS 11 (2017). It's a container around HEVC-compressed image data, roughly half the file size of an equivalent JPEG with no visible quality loss. The catch is compatibility: most non-Apple software still can't open HEIC files without a plugin or conversion step, which is why most iPhone users end up converting them.

How to open

macOS, iOS, and iPadOS open HEIC natively. Windows 10 and 11 require the (paid) HEIF Image Extensions from the Microsoft Store. Most browsers don't display HEIC inline. If you received a HEIC file and don't want to install codecs, converting to JPG is the standard fix.

Full HEIC format guide →
JPG, Joint Photographic Experts Group

JPG (also written JPEG) is the most widely used photo format on the web. The format dates to 1992 and uses lossy compression, discarding image detail in exchange for dramatically smaller files. It can't carry transparency. Modern alternatives like WebP and AVIF compress 25-50% better at the same visual quality, but JPG remains the universal compatibility default: every browser, OS, and image editor in existence reads it.

How to open

Every operating system opens JPG natively, double-click on Windows, macOS, Linux, iOS, or Android and the system viewer launches. Browsers render JPGs inline. Image editors (Photoshop, GIMP, Affinity Photo, Pixelmator, Photopea in the browser) all read and write JPG.

Full JPG format guide →

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FAQ

Common questions

Is this HEIC → JPG converter really free?

Yes. No signup, no watermark, no daily file count limit. Every conversion runs in your browser, your file never touches our servers because there are no servers.

Where does my file go when I convert it?

Nowhere. The conversion runs entirely in your browser using JavaScript and WebAssembly. Your file is never uploaded to our servers. We don't have any servers handling files, there's nothing for us to log, store, or accidentally leak.

What's the maximum file size?

Whatever your browser can hold in memory. Practically, this means a few hundred MB on most computers, significantly larger than the 1-2 GB caps that server-upload converters charge for. Very large files (multi-GB) may require closing other browser tabs first.

Why convert HEIC to JPG?

Photos taken on iPhone (the default format since 2017). Photographs and any web image where transparency isn't needed. The most common reason to convert is compatibility, JPG works in places where HEIC doesn't, or vice versa.

How do I open a HEIC file in the first place?

macOS, iOS, and iPadOS open HEIC natively. Windows 10 and 11 require the (paid) HEIF Image Extensions from the Microsoft Store. Most browsers don't display HEIC inline. If you received a HEIC file and don't want to install codecs, converting to JPG is the standard fix.

Does this work offline?

Once the page is loaded, the conversion itself runs entirely offline. The first time you use a tool, your browser downloads the conversion library (a one-time cache). If you reload while offline, the page won't load, but you can install the site as a Progressive Web App for full offline use.

Can I convert multiple files at once?

Single file at a time for now. Batch conversion is on the roadmap, for now, drop one file, download the result, then convert the next.