Re-compress WebP
Quality 40–95, keep WebP. Strip metadata, trim overhead, keep alpha.
WebP already smaller than JPG/PNG — make it smaller locally. Re-compress WebP, or convert JPG/PNG to WebP in the same batch.
WebP is the practical delivery format for most sites — smaller than JPG at the same visual quality, with alpha.
One batch, one output. Keep WebP as WebP, or bring JPG/PNG along.
PNG → WebP at quality 85 balanced — 545 PNGs, 247.9 MB → 40.4 MB avg 84.5% peak 99.8% real vips. JPG → WebP avg 70.9% on 456 files.
Convert photos. Compress JPG →
Convert screenshots. Compress PNG →
Smaller still. Compress AVIF →
Bulk workflow. Reduce size →
Yes. Keep original WebP and just re-compress at your chosen quality.
If you control delivery, yes — WebP is smaller at the same visual quality. Do it in the same batch.
No. All WebP processing is local. No upload, no account.
Re-compress or convert to WebP — all offline, all in one pass.