Compress Image for CDN Storage (Cloudflare / BunnyCDN)
Modern CDNs (Cloudflare Images, BunnyCDN, imgix) resize on request — supply a clean source.
Your images stay on your device. Nothing is uploaded.
Cloudflare Images, BunnyCDN, imgix, ImageKit and every other modern image CDN can resize and re-encode on request. The right upload strategy is to supply one clean high-quality source at 2400 px and let the CDN handle per-viewport delivery.
This preset produces a 2400 px JPEG at quality 88 — CDN-source-optimal.
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Frequently asked questions
- How much can I shrink images for CDN storage?
- Typical reductions are 60–85% with no visible quality loss using the defaults on this page. Cloudflare Images, BunnyCDN, imgix, ImageKit and every other modern image CDN can resize and re-encode on request. The right upload strategy is to supply one clean high-quality source at 2400 px and let the CDN handle per-viewport delivery.
- What format is best for CDN storage?
- For CDN storage the preset above outputs JPEG at quality 88 — the sweet spot for this workflow's LCP and CWV budget.
- Will compression break transparency or animation?
- Transparency is preserved when the output format supports it (PNG, WebP, AVIF). Animation is preserved for animated WebP. JPEG output flattens transparency to white.
- Can I compress dozens of images at once?
- Yes — use the bulk compressor. Drop a folder or multi-select files; the queue processes them in order with progress per file, and you can download all results as a ZIP.
- Do my images get uploaded anywhere?
- No. The tool runs entirely in your browser — important for client work, internal assets, and anything not yet published.
Optimise the rest of your CDN storage assets.
Use the bulk compressor to process a folder in one go. Everything runs locally.
Start compressing