Images · Vendor site 2026-10-04
SlingSite is a browser-based image optimizer that compresses uploads and generates mobile, tablet, and desktop sizes in JPG, WebP, and AVIF. The site positions the tool as a free way to improve Core Web Vitals without sending one oversized asset to every device.
Web developers and site owners who need responsive, next-gen image assets without running a separate DAM.
Processing happens in the browser workflow shown on the image tool page; paid tiers or account limits are not published on the marketing site.
SlingSite focuses on multi-size, multi-format image optimization in the browser rather than simple single-file compression.
What it can do
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Responsive outputs | Generates mobile (450px), tablet (850px), and desktop (1920px) assets from one upload. | Facts sourced | 2026-10-04 |
| Formats | Produces JPG, WebP, and AVIF variants for each size in a downloadable zip. | Facts sourced | 2026-10-04 |
| Video tool | Navigation also links to a browser-based video compressor on the same site. | Facts sourced | 2026-10-04 |
Understand the total cost
Free
Free
Homepage markets free browser compression with unlimited optimization and no account required for the core compressors.
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Explore toolThe practical questions
The FAQ explains that serving desktop-sized images to phones wastes bandwidth and hurts performance scores.
The page describes AVIF and WebP for modern browsers with JPG as a universal fallback.
SlingSite is a browser-based image optimizer that compresses uploads and generates mobile, tablet, and desktop sizes in JPG, WebP, and AVIF. The site positions the tool as a free way to improve Core Web Vitals without sending one oversized asset to every device.
Homepage markets free browser compression with unlimited optimization and no account required for the core compressors.. This record lists ongoing free access; check the plan limits before starting.
No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.
Not confirmed. API access and subscription access may have different terms; consult the linked sources.
Processing happens in the browser workflow shown on the image tool page; paid tiers or account limits are not published on the marketing site.
No retained pricing changes yet. A current price alone does not establish a historical trend.
Reviewed vendor source
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