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WebP Converter vs XL Converter: catalog facts
WebP Converter	XL Converter
Free Free and open source under GPL-3.0.	Free Free and open source under the GPLv3.
Linux	Windows, Linux
Converts images to WebP Lets users control compression quality	Supports JPEG XL, AVIF and JPEGLI encoding Lossless, reversible JPEG to JPEG XL transcoding
Linux only	macOS build is a deprecated beta Focused on conversion rather than editing
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0-only
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.