Why Your Images Are Too Large for Website Hero Images
If an upload keeps failing, the image is usually larger than it needs to be in more ways than one. The hero is usually the largest element on a page and often decides how fast the page feels to load.
Recommended settings for website hero images
| Setting | Starting point |
|---|---|
| Format | JPEG (WebP where accepted) |
| Width | about 1920 px on the long edge |
| Quality | 78 |
| File size | 300 KB or less |
These are practical defaults. If the platform or form you are using publishes its own limits, follow those instead.
Why Your Images Are Too Large
Modern cameras capture 12 to 50 megapixels. That detail is useful for printing posters but rarely for website hero images, where about 1920 pixels wide is plenty.
Metadata, PNG format for photos, and maximum-quality saves also add weight. Re-encoding as JPEG at quality 78 after resizing solves all three at once.
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 1920 and the target size to 300 KB.
- Press Compress, check the result and download it.
Quick tips
- Use WebP where it is supported and you control the page.
- Never re-compress an already compressed JPEG if you can avoid it.
- Strip metadata from images you share publicly.
- Always keep the original file and compress a copy.
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 website hero images, the reliable recipe is simple: resize to around 1920 pixels, compress at quality 78 or to a 300 KB target, and check the result before you upload. Keep the original so you can always start again.
Related guides
- Image File Size Checklist for Website Hero Images
Run through this list before you upload.
- How to Get a JPEG Under 300 KB for Website Hero Images
Hitting an exact size limit is easier with a target-size compressor.
- Does Compression Affect Image Quality for Website Hero Images?
Yes, but how much depends on your settings.
- Fixing Blurry Images After Compressing for Website Hero Images
Blurriness after compression usually comes from resizing too far, not from JPEG itself.
- Image File Size Checklist for Passport Photo Uploads
Run through this list before you upload.
- Does Compression Affect Image Quality for Slack Messages?
Yes, but how much depends on your settings.