Connect your archive
Point Chrome at the folder that holds your photographs and transcriptions — Box, OneDrive, Google Drive, Dropbox or a plain disk. The browser reads it in place.
Works with the folders you already useThe world’s archives, read together
Collatorium
Weaving patterns from the page.
People and AI transcribe the archive together, every step checked. Then you see how they connect, across collections: people, letters, places and time.
Sign up for free
Free for everyone. Members sign in with their email — a one-time code, no password to remember. Open sign-up is coming; until then, ask a team member to add you.
How it works
Two stages that feed each other: transcribe the archive, then see what it connects to. What you find in one often sends you back to the other.
Transcribepeople and AI, every step checkedHow transcribing works →
Read and compare
Every leaf at full resolution, right way up. Every text laid side by side — people, handwriting recognition, AI systems reading independently — with the close-up for each disputed spot.
Tested, logged and checkedRule and keep
Choose a reading, correct a word, flag a doubt. Each click is saved to your folder under your name, with the evidence, and never overwritten.
Every decision credited to youVisualizepeople, letters, places and timeHow visualizing works →
Gather across archives
Set a letter beside its reply, wherever each is kept now — your collections and the digitised holdings of other libraries.
One conversation, many archivesLink people, places and dates
The checked texts name people, places and days. Each becomes a point that can be followed from page to page.
Every link traced to its pageExplore
Follow lives through letters, places and time: who wrote to whom, who met where, and what was happening in the world.
Every link traced to its pageMany readers, one record
Collatorium brings every reading of a page into one view: handwriting recognition, a foundational model, supplemental models from other companies, and the people who decide. Each model reads on its own, without seeing the others — letters before words, no outside knowledge, refuse rather than guess. Their agreement is a signal, never proof.
Where readers differ, the page shows the close-up, each reading, and a blank to rule. Every ruling is kept with its evidence and the name of the person who made it. The machines follow; the reader decides.