Free Chrome Extension

Track your mood,
understand yourself

Moody Log is a private, offline mood tracker built for people managing bipolar disorder - log mood levels, sleep times, and daily symptoms week by week.

Download - it's free Support the project

No account required  ·  All data stays on your device  ·  100% free

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What's inside

Everything you need.
Nothing you don't.

10-Level Mood Grid
Log daily mood from Very Depressed (1) to Very Elevated (10) with a single tap on the weekly grid.
Sleep Tracking
Record bedtime and wake time each day. Instantly see duration with color-coded feedback - green for 7–9 hours.
Symptom Notes
Write daily notes and use quick-add chips for common symptoms like anxiety, irritability, and energy changes.
Insights & Trends
View mood distribution, streaks, average sleep, and 30-day activity history to spot patterns over time.
6 Beautiful Themes
Choose from Forest, Slate, Rose, Midnight, Sage, or Amber themes. Includes a full dark mode option.
100% Private
All data is stored locally on your device. No account, no servers, no analytics - your journal stays yours.
How it works

Up and running in 30 seconds

1
Download & load the extension
Download the zip, extract it, then go to chrome://extensions, enable Developer Mode, click "Load unpacked", and select the folder.
2
Click the toolbar icon
Moody Log opens as a clean popup window right in your browser. No new tabs, no distractions.
3
Log daily, review weekly
Tap your mood level for the day, note your sleep, jot symptoms, and save. Review trends any time in Insights.

Start tracking today

Free, private, and takes less than a minute to set up.

Download Free