OOneDiary · Listen to Your Inner World

A cross-platform multimedia diary designed for lifelong journaling

Capture every moment. Let your memories leave a trace.

Keywords: Local-first + Data ownership + Multimedia depth

✍️ Write Naturally · Simple and Effortless

Start instantly
No registration required. Works offline.
Local-first storage with automatic saving — your thoughts are never lost.

Multiple writing modes
Standard editor, Daily entry mode, Rich text, and Markdown — choose what fits your style.

True multimedia journaling
Add text (Rich Text / Markdown), photos, videos, audio, documents, and links between entries.
Voice-to-text, mixed layouts, and grid photo display make your memories more vivid.

Smart memory capture
Automatically records time, location, and weather.
When inserting photos, the app can read the original capture time and location and, with your confirmation, update the entry to reflect the real moment it happened.
AI chat content can be saved directly as a diary entry.

Designed for real life

Chat-style journaling with automatic daily grouping

Quick entry from home screen shortcuts

Backdate entries to fill in missed days

🔐 Secure & Organized · Built for Long-Term Use

Privacy first

Passcode & biometric lock

Offline backup and encrypted data transfer

Personalization

42 theme colors + dark mode

More than 100 online custom fonts

Templates and customizable tags (with auto-tagging support)

Smart organization

Filter by photos, videos, audio, tags, or notebooks

Powerful search by keywords, date range (calendar view), or map

Statistics including streaks, heatmaps, media counts, and storage usage

Pin important entries for quick access

Data Ownership & Portability

Sync with major cloud services (Google Drive, WebDAV, OneDrive, Dropbox, etc.)

Import from Day One with ease

Batch export to PDF or Markdown for long-term archiving or printing

Your data belongs to you — not to a platform.

⏳ Revisit the Past · Reflect and Grow

“On This Day” memories

Timeline and calendar views

Map view of your life journey

Favorites and comments for reflection

Creative output

Export long images, PDF, or Markdown

Face-to-face diary exchange with friends and family

🤖 AI-Enhanced Memory

AI summaries, translation, and insights

AI-generated illustrations for your entries

Scan and import handwritten journals with AI

Image-to-diary, AI guided diary for easy writing

🌱 Designed for a Lifetime

Build a lasting journaling habit with reminders and seamless multi-platform access.
More than a diary — it also works as a lightweight notebook and memo tool.

Years from now, you can open it and see the full story of yourself.

website：https://app.onediary.net
email：develop@onediary.net