Instasize alternative
SizeSpec vs Instasize
Instasize is a general photo and video editor built around AI generation, background removal and upscaling. It is not built around marketplace seller requirements, so it has no published presets for Etsy, eBay, Amazon or similar listing rules.
Side by side
| SizeSpec | Instasize | |
|---|---|---|
| Built for | Marketplace listing photos: exact size, framing and file size per marketplace | AI photo and video editing for social content and creators |
| Marketplace presets with a cited source | Yes, one per marketplace, each dated | None published |
| Where processing happens | In your browser; photos are never uploaded | Cloud, including for AI features |
| Account needed to start | No, for the free pack | Free plan exists; most editing needs an account |
| Price | One resizing plan, no tiers. AI photos are a separate add-on | Free tier plus three paid tiers, roughly $25–$183/mo billed annually (confirm current pricing, it changes) |
Source for Instasize's pricing and features: Instasize: Pricing, checked October 21, 2026. Pricing changes; confirm on their site before relying on a number.
Choose Instasize when
You want AI image generation, video editing or background removal for social posts, not marketplace compliance.
Choose SizeSpec when
You need product photos at the exact pixel size, aspect ratio and file size a marketplace publishes, with the source shown.
Try the marketplace-specific way
Pick your marketplace, drop your photos, download a ZIP sized to spec. Your first pack each month is free, and your photos are never uploaded.
Try it freeQuestions
Does Instasize have marketplace-specific presets?
Not that Instasize publishes. Its presets target social formats; marketplace listing rules (exact pixels, byte limits) are not part of its stated feature set.
Is Instasize free?
It has a free tier. Instasize's own pricing page lists paid Pro, Ultimate and Max tiers above it for AI generation features; check instasize.com/pricing for current numbers.
Can I use both?
Yes. Some sellers use Instasize or Canva for creative edits, then run the result through SizeSpec to hit a specific marketplace's exact size before upload.
Instasize is a trademark of its respective owner. SizeSpec is an independent product, not affiliated with, or endorsed by, Instasize.