Use case · security
To password-protect a sensitive document — not just trust a folder permission — Markd.ly encrypts documents with AES-256-GCM. This page states exactly what is and is not encrypted, because vague security claims are worse than none.
Mac · Windows · one license, both desktops · lifetime $19.99 one-time
Markd.ly Pro can encrypt documents using AES-256-GCM, a standard authenticated-encryption algorithm. The encryption is applied to the document itself — the protected file is encrypted at rest on your disk. We name the algorithm deliberately: if you are choosing an encrypted editor, you should be able to verify the algorithm, not take “encrypted” on faith.
Encrypted documents are a Pro feature
Pro is one-time $19.99 one-time, lifetime, desktop-only.
Mac is the reference build today
Encrypted documents are deepest on the Mac direct-download build. Windows Pro tooling — including encrypted documents — is rolling in across the 1.x series; do not assume it has shipped on Windows. Check the current Windows build before relying on it.
Not on mobile
Mobile is a local editor with no document encryption.
It encrypts the document, not a sync vault
Markd.ly has no sync. This is at-rest document encryption on your machine, not an end-to-end-encrypted sync service. If you need encrypted sync across devices, that is a different product category and Markd.ly is not it.
Lose the passphrase, lose the document
Authenticated encryption with no recovery backdoor means exactly that. There is no “reset password” for an encrypted document — that is the point, and it is your responsibility.
It protects the file at rest, within its threat model
It is not a substitute for full-disk encryption, OS account security, or operational discipline. It is one strong, specific protection: this document, encrypted, on this disk.
Desktop only
Mac deepest, Windows rolling across 1.x. Document encryption is a desktop feature — not on mobile.
People who keep individual sensitive documents — drafts under NDA, legal notes, personal records — and want that specific file encrypted, in a real editor. Anyone who wants to verify the algorithm (AES-256-GCM) rather than trust a marketing word.
If you need encrypted sync across devices, Markd.ly has no sync and will not meet that need — choose a tool built for encrypted sync and do not let this page talk you out of it.
Native Mac & Windows editor with AES-256-GCM encrypted documents. One purchase: $19.99 one-time.
Get Markd.lyRelated