One Line a Day

▲ Today One line at a time

Mood:

0:00

0/500

On this day In years past

Reflect Patterns in your week

Click "Generate Reflection" to get AI insights on your recent entries.

Generating reflection...

▲ Look back Every line you've kept

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“One line a day. That’s the whole practice.”

Settings

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AI Insights (Optional)

Enable AI-powered reflections with OpenAI, Anthropic, or Google Gemini. Keys are stored on this device only and are never sent anywhere except the provider you choose.

No API key configured

AI Provider

API Key

Get your API key from your provider's console

⚡ Model: gpt-4o-mini

💰 Estimated cost: ~$0.01-0.02/day

🔒 Your key stays encrypted on your device

☁️

Cloud Sync (Cloudflare)

Sync entries and media to your own Cloudflare Worker so your journal follows you across devices. Local storage keeps working offline; the cloud is the durable copy.

Server URL

Sync Token

Enable sync

Usage Statistics

Total Entries 0

API Calls Today 0

Daily Limit 50

Cost Today $0.00

Data Management

All your journal entries are stored locally in your browser. No data is sent to any server except when using AI features.

Import from Day One, Stoic, Five Minute Journal (the JSON inside their ZIP export), Daylio CSV, or any JSON/CSV/text file with dated entries. PDF-only apps like Punkt: copy the text from the PDF and use "Paste text" in the import dialog.

About

One Line a Day is a minimalist journaling app that encourages daily reflection through brief, meaningful entries.

Version 1.0.0 • Built with vanilla JavaScript • No tracking, no ads

Import Entries

Pick an export file from another journaling app, or paste text copied from a PDF export.

Keep my existing entries (skip conflicting dates) Overwrite my entries with imported ones

Year in Pixels

Great Good Okay Low Rough Entry, no mood