Changelog
What's new in Spronta.
Automatic WebP delivery for all requests
The CDN now negotiates modern image formats for every request — including bare image URLs with no transform parameters. Browsers that support WebP receive WebP automatically, with no code changes needed.
Free image tools
Launched /tools/webp-converter and /tools/image-resizer — free browser-based tools for image conversion and resizing, powered by the Spronta CDN.
R2 variant cache (L2)
Transformed image variants are now stored in R2 as a durable second-level cache. This means transformed images survive Cloudflare edge cache evictions and never need to be re-generated.
DPR support in transforms
Added ?dpr=2 and ?dpr=3 parameters to the CDN. Retina displays now get appropriately sized images by passing the device pixel ratio as a URL parameter.
Analytics Engine integration
Per-project request analytics are now tracked via Cloudflare Analytics Engine. View bytes served, cache hit rates, and transform usage from the dashboard.
SVG passthrough corrected
SVG files are now served directly without passing through the WASM transform pipeline. Previously, SVGs could trigger a raster conversion attempt on certain request paths.
Sharpen and blur transforms
Added ?sharpen and ?blur parameters to the image CDN. Values are clamped to safe ranges to prevent excessive processing time.
Presigned R2 upload URLs
Clients can now upload images directly to R2 via presigned URLs, bypassing the API server. This eliminates server-side memory pressure for large uploads and reduces upload latency.