If you own an iPhone, your photos are probably saved as HEIC files. Apple's High Efficiency Image Container produces great quality at small file sizes, but the format causes headaches the moment you move files off your phone: many Windows apps, older editors, and web platforms still refuse to open HEIC. Converting one file at a time is tedious when you have hundreds of vacation photos. Here's how to batch convert HEIC to JPG quickly, for free, and without uploading your photos anywhere.
Why batch conversion matters
Converting images one by one is fine for a single photo, but photo libraries don't work like that. After a trip, you might have 300 HEIC files to share with family or upload to a site that only accepts JPG. Doing that file-by-file in a desktop app can eat up an afternoon. Batch conversion processes the whole set in one go: you select all your files, pick your settings, and get converted JPGs back together.
The privacy-friendly way: convert locally in your browser
Most online converters ask you to upload your photos to their servers first. That means your personal pictures travel over the internet, sit on someone else's machine, and you just have to trust their deletion policy. A better approach is a tool that converts files directly inside your browser using local processing — your photos never leave your device. No upload, no waiting on a slow connection, and no privacy trade-offs.
Step-by-step: batch convert HEIC to JPG
Step 1: Open the converter. Head over to FileOnTap's free HEIC to JPG converter in any modern browser — Chrome, Edge, Firefox, or Safari. No account or installation is needed.
Step 2: Select your HEIC files. Click the upload area (or drag and drop) and select multiple HEIC files at once. You can pick dozens or even hundreds of photos in a single selection — that's the "batch" part. The files are read locally by your browser.
Step 3: Choose your output settings. Pick JPG as the output format and adjust the quality slider if you want to balance file size against image fidelity. For most sharing purposes, the default quality setting works perfectly.
Step 4: Convert and download. Hit the convert button and let your browser do the work. Because everything happens on your own device, conversion speed depends on your computer rather than a server queue. When it's done, download all the converted JPGs — usually as individual files or a convenient ZIP archive.
Tips for a smooth batch conversion
- Check your browser tab stays open. Large batches can take a few minutes; keep the tab active until the download finishes.
- Start with a small test batch. Convert 3–5 photos first to confirm the quality and file names look right, then run the full set.
- Free up disk space. Converted JPGs are typically larger than the original HEIC files, so make sure you have room for the output.
- Keep your originals. Always keep the HEIC originals as backups in case you need maximum quality later.
Why this approach wins
Desktop software often costs money or watermarks your images, and server-side converters make you upload private photos. Browser-local batch conversion gives you the best of both worlds: it's free, it handles many files at once, and your photos never leave your device.
Give it a try next time you're staring at a folder full of HEIC files. You'll have shareable JPGs in minutes.
Disclosure: I'm the developer of FileOnTap, the free tool linked in this tutorial.
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