JPEG XL 是很強大的格式，但支援仍然有限。將 JXL 轉換為 WebP，以獲得廣泛的瀏覽器和工具相容性。
一切都在你的裝置上本地處理。
如何使用此工具
新增你的 JXL
將你的 JXL 檔案拖曳到工具上，或選擇一個。
已預先選取 WebP
輸出格式已設定為 WebP。
調整並下載
依喜好調整品質，然後下載你的 WebP。
本節目前僅提供英文版本。
JPEG XL to WebP: moving from the better format to the supported one
JPEG XL is technically excellent — better compression than AVIF in many cases, lossless transcoding of existing JPEGs, and sensible progressive decoding. Its problem is adoption: browsers have been slow to ship it, and it was removed from Chrome’s roadmap before being reinstated as an optional feature.
WebP is the pragmatic destination. It is supported everywhere that matters, it handles both lossless and lossy content, and it supports transparency. The cost is file size: WebP is typically 20–40% larger than the JPEG XL it came from at matched quality.
What you keep and what you give up
- Kept: transparency, animation, lossless mode if you encode losslessly.
- Given up: JPEG XL’s size advantage, its lossless JPEG recompression trick, and its progressive rendering behaviour.
- Unchanged: the image content itself, up to the usual re-encoding loss.
常見問題
什麼是 JPEG XL？
JPEG XL（JXL）是次世代的圖片格式，壓縮效果出色，但尚未在每個地方都獲得支援。
為什麼要轉換為 WebP？
所有主要瀏覽器和許多工具都支援 WebP，使它成為網頁的實用選擇。
轉換是私密的嗎？
是的 — 它完全在你的瀏覽器中進行。