Compare software

GraphicsMagick vs Converseen: catalog facts
GraphicsMagick	Converseen
Free Free and open source.	Free Free and open source; donations accepted.
Windows, macOS, Linux, Command line	Windows, macOS, Linux
Reads and writes over 92 image formats, including AVIF, HEIC and JXL Multi-threaded processing with OpenMP	Converts and resizes whole batches of images at once Supports over 100 image formats
Command-line and library only, with no graphical editor Takes some learning for complex operations	Not a full image editor, only batch operations PDF conversion needs extra setup according to the help pages
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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