Which format should I use?

PNG or WebP where you need transparency, WebP for web delivery where accepted, and JPEG where a channel requires it. Keep a lossless master regardless.

Why did my images get white rectangles?

A JPEG bakes its background in. It is invisible on a white page and becomes obvious the moment the theme goes dark or tinted.

Support is broad now, and it is generally smaller at equivalent quality. Some older marketplace tooling still prefers JPEG or PNG, so check the destination.

What causes visible artefacts?

JPEG compression on sharp edges against flat backgrounds — which is exactly what product photography is made of. Repeated re-saving makes it worse.

Should I keep the original?

Always. Export from a lossless master each time rather than editing an already-compressed file, which compounds damage.

Print wants a lossless master at sufficient density. Compressed web exports are the wrong source for a printed catalogue.

Is the free generation really free?

Yes. One per day, watermarked and capped at 1024px. Signing up gives you 20 credits and clean full-resolution files with full commercial rights.

Convert Product Image Format

Format is a trade between transparency, file weight and what a channel accepts.

One free generation a day. No account, no card.

How it works

1. Upload your image
Start from the highest-quality original, since each conversion can compound loss.
2. Pick the destination format
Choose based on whether you need transparency and what the channel accepts.
3. Generate and download
One free watermarked result. Sign up for the clean, full-resolution file.

Why this is worth getting right

Image format is a decision with three competing pressures — transparency, file weight and channel compatibility — and most catalogues get it wrong by picking one format for everything. Transparency is the clearest dividing line: only PNG and WebP carry an alpha channel, so a product intended to sit on differently coloured backgrounds must be one of those, while a JPEG will always arrive with its background baked in. That baked-in background is invisible on a white page and becomes an obvious white rectangle the moment a theme changes to dark, which is a problem that surfaces months after the decision was made. File weight pushes the other way, because JPEG and WebP compress far smaller than PNG for photographic content, and store speed is tied directly to conversion. WebP generally wins on size at equivalent quality, and support is now broad, though some older marketplace tooling still prefers JPEG or PNG. Compression artefacts are the quality risk and they are worst exactly where product photography lives: sharp edges against flat backgrounds, which is where JPEG produces visible ringing. Repeated re-saving compounds it, so the discipline is to keep a lossless master and export from it each time rather than editing an already-compressed file. The practical answer for most catalogues is a lossless master, transparent PNG or WebP where the background must adapt, and compressed exports sized per channel.

Tips that actually help

Use PNG or WebP when you need transparency, since a JPEG bakes its background in permanently.
Keep a lossless master and export from it each time, because re-saving a compressed file compounds artefacts.
Prefer WebP for web delivery where the channel accepts it, as it is generally smaller at equivalent quality.
Watch for ringing on sharp edges against flat backgrounds, which is exactly where JPEG artefacts are most visible.
Check what each marketplace accepts, since some tooling still prefers JPEG or PNG over WebP.

Who uses this

Theme changes: Stores moving to a dark or tinted background where baked-in white rectangles suddenly appear.
Store speed optimisation: Catalogues where oversized PNGs are costing load time and therefore conversion.
Multi-channel listing: Selling across channels with different format acceptance and size limits.
Design and print handoff: Supplying assets that need transparency for layout work rather than flattened images.

Vanliga frågor

Which format should I use?: PNG or WebP where you need transparency, WebP for web delivery where accepted, and JPEG where a channel requires it. Keep a lossless master regardless.
Why did my images get white rectangles?: A JPEG bakes its background in. It is invisible on a white page and becomes obvious the moment the theme goes dark or tinted.
Is WebP safe to use?: Support is broad now, and it is generally smaller at equivalent quality. Some older marketplace tooling still prefers JPEG or PNG, so check the destination.
What causes visible artefacts?: JPEG compression on sharp edges against flat backgrounds — which is exactly what product photography is made of. Repeated re-saving makes it worse.
Should I keep the original?: Always. Export from a lossless master each time rather than editing an already-compressed file, which compounds damage.
Does PNG hurt page speed?: It can. PNG is much larger for photographic content, and store speed is tied directly to conversion on mobile.
What about print?: Print wants a lossless master at sufficient density. Compressed web exports are the wrong source for a printed catalogue.
Is the free generation really free?: Yes. One per day, watermarked and capped at 1024px. Signing up gives you 20 credits and clean full-resolution files with full commercial rights.

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