Excalidraw
Virtual whiteboard for hand-drawn diagrams
Free124.9K
Flawless Feedback
review and annotate iOS apps then share your feedback in Jira or Trello. 
Design
About
review and annotate iOS apps then share your feedback in Jira or Trello. 
Alternatives to Flawless Feedback
MarkText
Next generation markdown editor, running on platforms of MacOS Windows and Linux. [![Open-Source Software][OSS Icon]](https://github.com/marktext/marktext) ![Freeware][Freeware Icon]
Open Source57.1K
Penpot
Open-source design and prototyping platform
Open Source49.4K
tldraw
Infinite canvas drawing tool
Free47.6K