Compare software

fylepad vs Heynote: catalog facts
fylepad	Heynote
Free Free and open source under the MIT licence.	Free Free download with source code on GitHub.
Windows	Windows, macOS, Linux
Mermaid and PlantUML diagrams built in Rich text, tables and code blocks	Blocks with per-block language, highlighting and auto-format Built-in calculator blocks with units and currencies
Little public documentation Small project with an unknown long-term roadmap	A scratchpad rather than a full note organiser or editor
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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