Joplin - free encrypted and password protected notetaking app.
There’s also standard notes, though i haven’t used that one. Free and paid versions
If you really want to know something hasn’t been tampered with though, look into git. You can use it raw or with something like VS Studio . Git can let you pgp sign stuff so you can know with certainty you made the change… unless you pgp key was compromised. Your changes (“commits”) would be signed and time stamped. You can keep files locally or send to a git forge (github, gitlab, forgejo).
Joplin - free encrypted and password protected notetaking app.
There’s also standard notes, though i haven’t used that one. Free and paid versions
If you really want to know something hasn’t been tampered with though, look into git. You can use it raw or with something like VS Studio . Git can let you pgp sign stuff so you can know with certainty you made the change… unless you pgp key was compromised. Your changes (“commits”) would be signed and time stamped. You can keep files locally or send to a git forge (github, gitlab, forgejo).
Git tutorial
Best of luck