Type a code like MEX14 for status. Use + / − to change copies: need → ✓ → +1 → +2…
＋ Add stickers
Enter one or many at once. Each entry adds one copy (need→✓, ✓→+1, +1→+2…).
Examples: MEX 1, 2, 3 · ESP15 ARG7 · 570, 571, 572
🔄 Trade matcher
Paste their need list — we'll show which of your spares you can offer.
📋 Share your list
✓ Copied!
⚙ Data & look
Auto-save: your collection is stored in this browser whenever you change it. It survives refresh and reopening the file on the same device/browser.
Tip: periodically click Export backup and keep the JSON somewhere safe. The file is a full snapshot — missing stickers, spare counts, postal swaps (open/completed, sent/expected lines, pending/received/written-off), and dark/bright mode. Import restores everything on another device or after clearing browser data.
Flags load from the internet when available; if you’re offline they fall back to emoji (or a star for special stickers).