Chatfossil quietly archives your own messages to your own computer, then lets you search every one of them in milliseconds — text, photos, voice notes, files and the links people sent you.
Most archives give you a search box and a list. Chatfossil gives you the conversation back.
Open a chat with 100,000 messages and it moves exactly like one with a hundred. No pages, no spinner, no waiting to load more.
Your message volume is drawn as a histogram across the top. Click any month and you land in it.
Searches text, captions, names, filenames and links at once. Turkish accents are optional in both directions — gunaydin finds Günaydın.
Saved on your machine, so they open the instant you click them — including years after the phone that sent them is gone.
A tweet someone sent you keeps its text, its pictures and its clip. When the link rots, you still have what it said.
Keep the messages that matter, and take the whole archive out as JSON whenever you like. It was always yours.
This is not a promise about how carefully your data is handled somewhere else. There is no somewhere else.
The single exception is deliberate and switchable: to show what a shared tweet said, the tweet's numeric ID goes to a public tweet-reading service. No message text, no phone numbers, no names. Turn it off and nothing leaves your device at all. Read the full policy.
Chatfossil is awaiting review on both stores. The links go live the moment they are approved.
Two honest limits, because finding them out later would be worse.
WhatsApp Web keeps roughly 90 days of history in your browser. Chatfossil archives what is there when it runs, so anything older than your first sync is already gone. From that day on, nothing is lost again.
Clearing site data for WhatsApp Web deletes the archive along with it, because that is where the browser keeps it. Export a JSON copy if that would hurt.