drag. drop. discover.
put the information you want to organize into cards (tasks, contacts, ideas, inventory).
add tags that describe each card (status, priority, category, date, owner).
drag and drop tags to filter, group, and reorganize your cards any way you want.
discover patterns, uncover insights, or communicate your plan with less work.
How does it compare?
See how multicardz stacks up against other ways to organize your work
the full free version includes card and tag creation, and moving cards around, saved views, and collaboration features. for just a few dollars a month you can add importing, advanced filtering, ai tag creation and more. explore all features →
try it: 1 million cards
query our live dataset and see actual performance
verify it yourself: browse the github repo to copy any guid tag from the dataset. or try searching for a tag that doesn't exist (like "test-xyz") to confirm zero results.
select a result size and click search to see live results
Everything you need to organize anything
Built for speed, designed for simplicity
Sub-millisecond Queries
Filter 1 million cards in under 3ms. No loading spinners, no waiting.
Unlimited Tags
Tag cards with as many labels as you need. No limits, no extra cost.
Drag & Drop Filtering
Drag tags to filter zones. Combine tags with AND, OR, NOT operations.
Row & Column Grouping
Group cards by any tag. Create dynamic matrices and pivot tables.
Import & Export
CSV, JSON, Trello, Jira. Bring your data in, take it out anytime.
Privacy Mode
Run entirely in your browser. Your data never leaves your device.
