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Converseen vs ImgCompress: catalog facts
Converseen	ImgCompress
Free Free and open source; donations accepted.	Free Free and open source under the GPL-3.0 licence.
Windows, macOS, Linux	Web, Self-hosted
Converts and resizes whole batches of images at once Supports over 100 image formats	Handles more than 70 input formats including HEIC and RAW Local AI background removal with no cloud uploads
Not a full image editor, only batch operations PDF conversion needs extra setup according to the help pages	Requires Docker AI background removal runs on CPU, which may be slow on weak hardware
Downloadable app	Self-hosted
Open source	Open source
License: GPL-3.0	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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