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0x54ask vs todotxt.net: catalog facts
0x54ask	todotxt.net
Free Free and open source under the GPL-3.0-or-later licence.	Free Free and open source, with optional donations.
Android	Windows
Uses the plain-text todo.txt format No Internet permission at all	Single-key shortcuts for almost every action Tasks stay in a plain text file you control
Very new project, created in 2026 No built-in sync; relies on a separate tool such as Syncthing	Windows only No built-in sync; file syncing must be handled separately
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: BSD-2-Clause-FreeBSD
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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