Short answer
Add a copy of one HEIC photo and choose JPG. Run preflight, the app's readiness check, then convert that one photo first.
Open the JPG and compare it with the HEIC original. If its color, orientation, detail and metadata look right, reuse the same settings for the remaining photos.
This guide covers Just Converter. Check requirements and download options before you begin.
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When to use this method
Use this method when a website or app accepts JPG but not HEIC, especially when several photos need the same settings.
What you need before converting HEIC
- One copied HEIC photo with the orientation and detail typical of your batch
- A separate folder for the JPG result
- The size or quality rules required by the website or app that will receive the JPG
HEIC is a compact image format commonly used by phones. JPG works in many more places, but it can discard some detail to make the file smaller. Keep the HEIC original.
Convert one HEIC image first
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Add one sample image
Open Image tools, add one representative HEIC file and choose a separate output folder. Keep the original; first check this one image before adding a whole collection.
You should see: your sample filename in the input list and the intended output folder.
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Choose JPG quality
Use a practical quality setting and avoid reducing dimensions unless the destination requires it.
You should see: JPG as the planned output and the dimensions you intend to keep.
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Decide what metadata should remain
Review location, camera and date metadata before choosing whether to keep or remove it.
You should see: the metadata choice you want applied to the JPG.
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Convert the sample
Select Start operation. In Review before starting, check the input, JPG settings, destination and warnings, then choose Confirm and start. This compatibility check is called preflight. Stop if the app cannot read the file. Open the result when conversion finishes.
You should see: one new JPG that opens normally and leaves the HEIC original unchanged.
HEIC compatibilityHow preflight checks the selected file before conversion.
- How it works
- The format list uses the image readers available in the current app runtime. Preflight summarizes the accepted input and chosen operation before conversion.
- Important limit
- Reader availability does not prove that an individual HEIC or HEIF file will decode. Convert and inspect one sample before relying on a whole batch.
If preflight rejects the file or the JPG looks different
HEIC and HEIF files are not all encoded in exactly the same way. The app checks runtime reader availability and basic input validity, but full decoding can still fail during conversion. Do not start a batch after an unsupported or failed result. If conversion succeeds, compare direction, color, and fine detail at normal viewing size. Raise JPG quality or keep the original dimensions when the destination allows it.
HEIC conversion mistakes
- Assuming every HEIC file is readable without checking preflight
- Deleting originals before checking orientation and color
- Removing metadata without reviewing what the destination needs
JPG checkpoint
- The sample passes preflight and completes conversion successfully.
- Before starting a batch, compare one HEIC and JPG side by side for orientation, dimensions, color and fine detail.
- The metadata you intended to keep or remove matches that choice.
- Keep the HEIC original even when the JPG looks correct.