Web Image Flow Open migration pack
Free: small migration test batch Agency migration packs from £5 View pricing

TC008 · Website migration

Website image optimisation and migration

Migrate client sites with deterministic image packs, not a generic compressor bookmark.

Website image optimisation and migration packs for agencies

Open migration pack View developer tools

Migration pack specification

InputClient folder ZIP or legacy CMS export
OutputsWebP/PNG/JPG variants + optional responsive widths
ManifestJSON handoff for static site generators and CI
AVIFOnly when worker format register marks supported

Outputs include responsive widths, filenames, ZIP export, and image-pack-manifest.json.

Developer resources

See migration pack output

Architecture studio hero: lossy WebP q92 vs q68 on the same frame, plus four real responsive width files.

Hero image size reduction

LIVE DEMO
LIVE DEMO
Hero image size reduction before
Before: high-quality export (92 WebP)
DEMO OUTPUT
Hero image size reduction after
After: lossy WebP q68, same frame

Lossy WebP export: 73 KB → 28 KB (61.7% smaller). Measured bytes in manifest.json.

Responsive variant set

SAMPLE RESULT
320w · 6 KB Hero variant 320w wide
768w · 19 KB Hero variant 768w wide
1024w · 29 KB Hero variant 1024w wide
1440w · 41 KB Hero variant 1440w wide

Each preview is shown at a different relative scale to demonstrate the four generated delivery widths.

FAQ

Who is Web Image Flow for?

Web agencies, developers and migration teams optimising client image libraries during site launches.

Does this replace TinyPNG?

It targets repeatable migration packs and responsive exports, not anonymous one-file compression bookmarks.