Server-rendered views
Use one helper for html/template, Gin templates, Fiber views, cards, heroes, avatars, product media, and galleries.
go image optimization
Optimize Go app images without adding image workers
Keep uploads, static files, generated previews, and object-storage media where your Go service already exposes them. Render Skymage URLs from handlers, html/template views, response structs, or JSON APIs for exact dimensions, crops, WebP or AVIF output, and cached delivery.
func skymageURL(src string, params url.Values) string {
return "https://demo.skymage.net/v1/" + src + "?" + params.Encode()
}
cardImage := skymageURL(imagePath, url.Values{
"w": {"520"},
"h": {"390"},
"fit": {"cover"},
"f": {"webp"},
"q": {"82"},
})
go surfaces
Start with the handler, template, or API response that already repeats image URLs
A useful Go image optimization test starts with one public route, one uploaded or storage-backed image path, and a repeated surface where right-sized variants are easy to compare.
API-backed clients
Return optimized image URLs from Go response structs or JSON APIs consumed by React, Vue, mobile, admin, or storefront clients.
Uploads and generated media
Transform public S3, R2, static file, screenshot, report, or generated preview URLs without queueing new files.
rollout path
Use URL variants before adding Go image jobs
Pick the integration point closest to the repeated image surface, then test one handler or endpoint before changing broader media handling.
evaluation path
A practical Go image CDN test answers four questions
Origin fit
Can Skymage transform the public upload, static, or object-storage URLs your Go app already renders or returns?
Variant control
Can handlers, templates, and APIs request exact dimensions instead of sending originals to every client?
Format output
Can routes ship WebP or AVIF without adding image.Decode jobs, queues, or derived-file storage?
Rollout risk
Can one route prove bytes, cache, and visual fit before a broader media pipeline change?
free check
Get a Go image route audit
Send one public Go-backed page or endpoint. Skymage will identify the repeated image surface to test first, the URL parameters to try, and whether the current upload or static media origin fits a low-risk rollout.