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Track Your LEGO Collection Value

Track estimated LEGO set values and manage your collection. Estimates come from BrickLink sold data and are refreshed on a schedule, not in real time.

Everything You Need to Track Your LEGO Collection

Estimated Value Tracking

See your total LEGO collection value recalculated as BrickLink-based estimates are refreshed. Not every set has a current market value; sets without one show as unavailable.

Retirement Tracking

See an estimated retirement status for each set. It is a model estimate based on set age, not a confirmed LEGO announcement.

Source and Freshness

Each value shows where it came from and when it was last updated, so you can judge how current it is.

Alerts (Pokémon Only)

Price alerts currently cover Pokémon cards only. LEGO set price alerts and retirement alerts are not available yet.

Sealed vs. Used

Record sets as New/Sealed, Complete Used, or Incomplete. Where BrickLink data separates new from used, the estimate follows your choice.

Gain and Loss on Recorded Costs

If you enter a purchase price, CardWorth compares it with the current estimate. Sets without a recorded cost are not counted as profit.

Start Tracking in 3 Simple Steps

1

Create Free Account

Sign up in seconds - no credit card required. Your free account includes LEGO set value tracking.

2

Add Your LEGO Sets

Search by set number (like "10698" or "75192") and record condition and quantity. LEGO box photo scans have a free allowance of 10 per day.

3

Watch Your Value

Your collection value is recalculated as estimates are refreshed. Track price changes, estimated retirement status, and total portfolio value.

Why Track Your LEGO Collection?

📈 Value Tracking

  • • Track ROI on the sets where you recorded a cost
  • • See which of your sets have gone up or down
  • • Compare sealed, complete, and incomplete values
  • • Prices can fall as well as rise; past changes do not predict the future

🎯 Collection Management

  • • Know the total value of your collection
  • • Track which sets you own vs want to buy
  • • Record condition and quantity for each set
  • • CSV and JSON exports are free, including after you cancel.
  • • Pro: PDF inventory report (not an appraisal)

CardWorth vs Manual Tracking

✅ With CardWorth

  • • Estimates from BrickLink sold data, refreshed on a schedule
  • • Estimated retirement status (a model estimate)
  • • Collection value and history in one place
  • • Works in the browser on phone, tablet, and desktop
  • • Track both sealed and used sets
  • • Gain/loss where you record a purchase price

❌ Without CardWorth

  • • Manually check BrickLink for each set
  • • Research retirement dates on multiple sites
  • • Spreadsheets with complex formulas
  • • No alerts - must remember to check
  • • Version conflicts, lost data
  • • Hard to track condition differences
  • • Calculate ROI yourself for every set

Frequently Asked Questions

How do I track my LEGO collection value?

Create a free account, add your LEGO sets by set number, and CardWorth shows an estimated value for each set that has one. Prices are refreshed on a schedule, typically every few days, not in real time.

Does CardWorth track retired LEGO sets?

CardWorth shows an estimated retirement status for sets (a model estimate based on set age, not a confirmed LEGO announcement) alongside the estimated value where one is available.

Can I track LEGO sets I don't own yet?

Yes. Add sets you are considering to a wishlist or goal list so you can compare their estimated values with what you own.

How accurate are CardWorth's LEGO set values?

They are estimates, not actual sale prices. LEGO values come from BrickLink sold data and differ for new/sealed and used sets. Not every set has a current market value; sets without one show as unavailable. Each value shows when it was last updated.

Will I get alerts when LEGO sets retire or prices change?

No. Price alerts currently cover Pokémon cards only. LEGO set price alerts and retirement alerts are not available.

Can I track both sealed and opened LEGO sets?

Yes. When adding a set you can record whether it is new/sealed, complete used, or incomplete. Where BrickLink data distinguishes new from used, the estimate follows that; an incomplete set is not valued separately from a complete one.

Can I export my data?

Yes. CSV and JSON exports are free, including after you cancel. The PDF inventory report is a record of your collection and estimated values. It is not a professional appraisal, and insurer acceptance is not guaranteed.

Ready to Start Tracking Your LEGO Collection?

Track the estimated value of your LEGO sets. Free account, no credit card.

Prices are estimates derived from pokemontcg.io (TCGplayer market data) and BrickLink sold data. Prices are refreshed on a schedule, typically every few days, not in real time. Not a professional appraisal. About our data