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About this tool
Create, analyze, and preserve your memories with AI-powered mood analysis, word insights, and emotional journey tracking.
AI Memory Capsule is a private journal that scores each entry you write with a lexicon-based sentiment analysis — counting matches against a built-in list of positive and negative words, adjusting for intensifiers and diminishers, and returning a −100 to +100 score — then tracks how those scores, moods and topics move over time. You tag each entry with one of 10 moods and a 1–5 intensity, and can seal a capsule behind a future unlock date so its content stays hidden until then. Everything is stored in your browser's localStorage, with JSON and CSV export so the archive is always yours.
Open AI Memory Capsule on AltFTool — it loads instantly in your browser.
Click New Memory to open the Create Memory Capsule dialog, write the moment in the required Memory field (a live word count sits under it) and add an optional Title.
Pick one of the ten mood chips (Happy, Excited, Grateful, Calm, Nostalgic, Proud, Sad, Anxious, Neutral or Inspired), set Intensity from Faint to Intense, choose a Category or press Add New, add tags by pressing Enter, optionally switch on Seal this capsule with an unlock date, then click Create Capsule — a 'Memory capsule created' toast confirms the save.
Use a card's AI Analysis or View button to open the capsule's AI Sentiment Analysis score, Detected Topics and Top Words; once you have more than two capsules the Overall Mood Summary, Mood Distribution and Most Used Words Across All Memories panels appear above the grid, and Export saves everything as memory-capsules-<date>.json.
The score is a transparent positive-minus-negative word ratio with a 1.3x bump for intensifiers and a 0.7x damping for diminishers — no opaque model deciding how you felt.
Entries are matched against 10 topic dictionaries and a stop-word-filtered word frequency count, so recurring themes surface without you tagging them.
A capsule with a future unlock date hides its content in both the list and detail views until that timestamp passes.
In your browser's localStorage, under the key altftool_ai_memory_capsule_data — never on a server. That means entries are tied to this browser and profile, and clearing site data deletes them, so export to JSON regularly if the archive matters.
It scores from −100 to +100 using the formula (positive words − negative words) ÷ total sentiment words × 100, after stripping stop words. Above +30 reads as Positive and above +60 Very Positive; below −30 is Negative and below −60 Very Negative, with anything in between labelled Neutral.
Not through the interface — the content stays hidden until the unlock date you set. It is a self-discipline feature rather than encryption, though: the entry is stored in plain form in localStorage, so treat it as a promise to yourself, not a security control.
Export as JSON for a complete copy including full text, or as CSV for a spreadsheet view with id, title, category, mood, intensity, tags, creation date, word count and favourite/pinned flags. The JSON export is the one to keep as a backup.