Shelfmark Collection Completion Tracker

See your collection clearly.

Catalog every piece you own, spot the gaps that remain, and keep the small stories that make each find worth remembering. This tracker turns a long list into a visual journey you can actually finish.

Your collection

0 items

    This collection is empty. Add your first item on the left to see the progress ring move.

    Gap finder

    Items still missing from the active set. Use this list before your next order or trip.

      Milestones

      Small markers that show how far you have come. Each step unlocks a new badge you can share.

      How collectors actually use this

      Start with a category that has edges

      Pick a set you can finish in a few months. "Every album ever pressed" is too big. "1977 UK first pressings of Rumours" is a project you can close. The progress ring means more when the finish line is real.

      Write the story while it is fresh

      The item title tells you what you own. The story field tells you why it counts. A two-line note about where you found it, who you were with, or what it sounded like on first play is worth more than any price guide later.

      Use the gap list before you buy

      Open the gap finder before a market trip or an online order. It shows only what you still need. This stops the most common collector mistake: buying a duplicate because you forgot you already owned a copy in worse shape.

      Mark variants honestly

      A reissue is not the same as an original pressing. Use the Variant status for re-releases, later prints, or backup copies. Your completion percentage stays honest that way, and your catalog stays useful if you ever sell or pass it on.

      Back up your work

      This tracker saves to your browser, not to a cloud account. Use Export JSON once a month. Save the file somewhere safe. If you switch browsers or reset your device, the Import button brings everything back.

      Print a catalog for the shelf

      The Print button hides the controls and gives you a clean grid. Pin it above your shelf, slide it into a binder, or mail it to a fellow collector. It works better than a screenshot because the layout is made for paper.

      Sample entry

      FieldExampleWhy it helps
      TitleRumoursThe searchable name of the piece.
      Note1977, UK first pressingKeeps the exact version clear.
      StatusOwnedFeeds the completion ring.
      RarityUncommonShapes the rarity bar and future value.
      StoryFound at a market in Bristol. Seller knocked two pounds off.Turns a title into a memory.

      Common questions

      How do I track items I am restoring or repairing?

      Set the status to "In repair." The item stays in your catalog but does not count toward completion. When it comes back, flip the status to "Owned" and the numbers update.

      Can I share my collection with a friend?

      Click "Copy share link." The link encodes your public collection summary in the URL. Anyone with the link can view the snapshot, but they cannot edit your local copy.

      What if I collect something that is not in the presets?

      Open the Custom category. Add your own item titles and notes. The progress ring, gap finder, and rarity bar all work the same way.

      Why does my completion percentage drop after I add more items?

      Completion is owned items divided by total items. Adding new pieces grows the total before you mark them owned. This is honest. The gap list shows exactly what to chase next.

      Assumptions and limits

      • Data is stored in your browser only. It does not sync between devices.
      • Rarity labels are subjective. Use them in a way that fits your own collecting rules.
      • Price values are not tracked here. This is a completion and memory tracker, not a valuation app.
      • Print layout depends on your browser's print dialog. Use "Save as PDF" for a file copy.