Converting HEIC to JPEG for Facebook Posts
iPhones save photos as HEIC by default, and not every site accepts it. Facebook re-encodes uploads, and starting from a clean, right-sized JPEG gives it less room to introduce blocky artefacts.
Recommended settings for Facebook posts
| Setting | Starting point |
|---|---|
| Format | JPEG (WebP where accepted) |
| Width | about 2048 px on the long edge |
| Quality | 78 |
| File size | 400 KB or less |
These are practical defaults. If the platform or form you are using publishes its own limits, follow those instead.
Converting HEIC to JPEG
When you pick photos through the browser file picker, iOS usually converts them to JPEG automatically. On other systems, open the HEIC in your photo app and export as JPEG.
Once you have a JPEG, compress it to around 400 KB for Facebook posts. JPEG is accepted almost everywhere.
Step by step with TheCompressJPEG
- Open the compress JPEG to 300 KB tool, or the main compressor for custom settings.
- Drop in your image. Nothing is uploaded; it is processed in your browser.
- Set the maximum width to 2048 and the target size to 400 KB.
- Press Compress, check the result and download it.
Quick tips
- Check the result on a phone, where most people will see it.
- Use consistent dimensions for a set of related images.
- Resize before you compress; it improves quality at any file size.
- Write a size limit slightly below the stated maximum to leave a margin.
FAQ
How do I compress many images for e-learning courses at once?
Drop all of them into the tool together and use Download all to get a single ZIP.
What JPEG quality should I use for e-learning courses?
Quality around 78 keeps photos looking natural while cutting file size substantially.
Will compressing reduce image quality for e-learning courses?
Some detail is removed, but at sensible settings the difference is not visible at normal viewing size.
Wrapping up
For Facebook posts, the reliable recipe is simple: resize to around 2048 pixels, compress at quality 78 or to a 400 KB target, and check the result before you upload. Keep the original so you can always start again.
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