Compare software

Sigal vs thumbsup: catalog facts
Sigal	thumbsup
Free Free and open source.	Free Free and open source.
Command line	Windows, macOS, Linux, Command line
Builds galleries from ordinary folders, processed recursively Output is static HTML with relative links, easy to host anywhere	One command builds a whole gallery Incremental rebuilds that skip unchanged files
Command-line only, no graphical interface Galleries must be regenerated after adding photos	Command-line only, with no graphical interface Needs Node.js or Docker plus ffmpeg
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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