In December 2024, one person finished ten large canvas paintings in a single month.
That same person was simultaneously navigating the approval process for three mental health books she had written — three volumes, submitted at once — through the National Book Development Board of the Philippines and Amazon Kindle. She was also the Senior Lead of the Communications Department at a capital markets firm. And she was coaching people through adversity.
She needed a notepad. Not a workspace. Not a second brain. Not a knowledge graph. She needed somewhere to put things — ideas arriving at midnight, notes she needed to hear read back to her while her hands were still covered in paint, thoughts too private to trust to a server she'd never seen, a journal she could keep behind a door that only she could open.
She looked at what existed. Google Keep handed her notes to an algorithm. Apple Notes locked her into an ecosystem. Notion was a second job. Evernote had a breach on its record. Standard Notes still required an account, still involved a server. Obsidian required configuration that felt like building the shelf before she could put anything on it. Bear was Apple-only. Joplin was close — but still required setup, still asked something of her before it gave anything back.
None of them could listen to her. None of them could read back to her. None of them had a place to hide. None of them were one file.
So she built one.
The encryption came first — not as a feature, but as a conviction. AES-GCM at 256 bits. PBKDF2 at 600,000 iterations. A PIN that is never stored, only hashed, only held in memory while the vault is open, destroyed the moment the screen locks. She did not build this because she had something to hide. She built it because privacy is not a setting you should have to turn on.
The voice came second. Because she paints. Because she thinks faster than she types. Because not one of the major products — not Google Keep, not Evernote, not Notion, not Bear — had made voice a first-class feature. She added voice-to-text that listens continuously, and text-to-speech that reads back, because a notepad that can only receive text is only half a notepad for someone who lives at full volume.
The hidden journal came last. There are things a person writes that are not for anyone else. Not a locked note that announces itself as locked. A door disguised as a photograph. A face as the threshold. A memory as the key.
Built by one person. No computer science degree. No agency. No team. One file. It asks for nothing. It gives everything back.
Every mainstream notes app demands an account, cloud sync, and server access before a single word is written. No mass-market tool had resolved friction, privacy, and simplicity simultaneously without a backend. The dominant players either asked for too much before they gave anything, locked users into ecosystems, or treated privacy as a premium upsell rather than an architectural starting point.
For the millions of people who handle sensitive personal, professional, or creative material — and who are not IT professionals — the choice has always been: accept surveillance capitalism as the price of convenience, or configure a technical alternative that demands expertise they should not need to have. Just A Notepad App removes that choice entirely. Privacy is enforced by the architecture, not promised in a terms-of-service document.
Opens to a distraction-free notepad with auto-save. A circular photo frame hides an encrypted private journal behind a PIN. Includes voice-to-text, read-aloud, three themes, auto-lock at two minutes, and encrypted backup and restore.
It's a notepad that keeps your thoughts completely private — no one else can read them, not even the person who built it. Think of it like a diary that lives only on your phone, locked behind a photo that's secretly a door.
AES-GCM 256-bit via Web Crypto API. PBKDF2 at 600,000 iterations, SHA-256, 16-byte random salt. IndexedDB storage. Service worker from inline Blob URL. SpeechRecognition continuous mode, 60s auto-stop. PIN change triggers full re-encryption of all three IndexedDB records. Auto-lock: 120s inactivity timer resets on click, keydown, touchstart, scroll. Three themes persist to localStorage independently of encrypted vault.
The note-taking app market is one of the most crowded in consumer software — dominated by Google Keep, Apple Notes, Notion, Evernote, and Obsidian — yet privacy remains a structurally unresolved problem across all of them. In April 2024, Proton AG — the company behind ProtonMail — acquired Standard Notes for an undisclosed sum specifically to integrate encrypted note-taking into its privacy-focused productivity suite (Research and Markets, 2024). The acquisition signals institutional recognition that encryption is becoming a baseline expectation, not a niche feature.
The privacy-specific note-taking segment was valued at $2.3 billion in 2024 and is growing at 14.7% CAGR — nearly double the rate of the broader market (Growth Market Reports, 2024). The fastest-growing user segments are professionals handling sensitive documents, healthcare workers, legal professionals, and creative individuals who require genuine confidentiality, not cloud-synced promises of it.
What no market player had built by December 2024 was a zero-account, zero-server, voice-enabled, encrypted-journal, single-file note-taking tool deployable without configuration. Just A Notepad App is not competing at the feature level. It is positioned at an architectural level that the major players are structurally unable to occupy — because their business models require the data they would have to give up.
Most private note tools solve either friction or privacy — rarely both, never without a backend. Just A Notepad App is one HTML file with production-grade encryption: PBKDF2 at 600,000 iterations, AES-GCM 256-bit, non-recoverable key architecture. The vault entry point — a photo frame — is a UX decision as much as a security one.
No account. No data ever transmitted. Key in memory only while vault is open. PIN never stored — only PBKDF2 hash. Encrypted backups unreadable without correct PIN. No recovery by design. All storage local to device.
No documentation site required — the onboarding flow is the documentation. Type your PIN. The vault opens. That is the entire manual.