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Flameshot vs Markup Hero: catalog facts
Flameshot	Markup Hero
Free Free and open source; no paid version.	Free Described by the developer as free.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Web
In-place editing: arrows, highlight, blur or pixelate, text, shapes and counters on the selection itself Customisable interface colour, button selection, shortcuts and save behaviour	Annotates screenshots, images, PDFs and websites Shareable links to annotated items
On Wayland it needs the right portal or compositor support, which varies by desktop No built-in video or GIF recording	Sharing depends on the developer's hosted service Closed source
Downloadable app	Downloadable app, Web application
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 24, 2026

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