Crypto Portfolio Tracker: See the Value of All Your Crypto

A crypto portfolio tracker answers one question: what are all your coins worth right now, added up in one currency? You enter each coin and the quantity you hold. The tracker prices every position at the current market rate, adds them into a total balance, and shows how that total is split across assets. You don’t need a login, a wallet connection or exchange keys. The holdings you type in are kept in local storage, and prices come from CoinGecko, refreshing every five minutes.

How the Total Balance Is Calculated

Each row in the Holdings table is one position. The tracker works through three simple formulas:

• Value = Quantity × Price
• Total balance = sum of Value across all rows
• Allocation = Value ÷ Total balance

Price is the market price in US dollars from the data source. It is not your exchange’s bid or the price you paid. Quantity is whatever you enter, so the output is only as accurate as the numbers you type. If you hold the same coin in three places, either add the three amounts together in one row or enter separate rows. Separate rows make it easier to update one location later.

Hypothetical example (illustrative prices, not current quotes):

Allocation is often more useful than the total. In this example, Bitcoin moves the portfolio far more than the stablecoin does. If you meant to hold a roughly even mix, the allocation column shows how far you have drifted without any extra calculation.

Reading the 24h Column

The 24h figure in each row is that coin’s price change over the past 24 hours. It is not the change in your holding if you bought or sold during that window. To turn a percentage into dollars for one row, use the current value:

Dollar change = Current value × r ÷ (1 + r), where r is the 24h change as a decimal.

Continuing the example, suppose BTC is up 2%, ETH is down 3% and USDC is flat. Assume quantities did not change during the day:

• BTC: $30,000 × 0.02 ÷ 1.02 ≈ +$588
• ETH: $12,000 × (−0.03) ÷ 0.97 ≈ −$371
• USDC: about $0

The net change is about +$217, or roughly +0.44% on the $49,783 the portfolio was worth a day earlier. Multiplying today’s allocations by the percentages gives +0.48%. That shortcut is close but slightly off, because the weights should come from 24 hours ago, before the moves happened. The gap stays small on calm days and widens when one large position moves sharply.

The Network Column

Many tokens exist on more than one blockchain. USDC, for example, is issued on Ethereum, Solana and several other chains, and wrapped versions of coins such as Bitcoin circulate on networks other than their own. The Network column records which chain a position sits on. Two rows of the same asset on different networks may carry the same price, but they are not interchangeable in practice. Moving between chains takes a bridge or an exchange, and that costs fees and time. Keeping networks separate also helps you match the tracker against what each wallet actually holds.

What the Market Table Shows

Below your holdings, the coin rankings list the largest assets by market capitalization, which is price multiplied by circulating supply. Each row shows price, 24-hour change, market cap and a seven-day price graph. Use it to check the price your holdings are valued at, or to see how a coin you are considering has moved over the past week.

Market cap rank measures size, not quality or safety. Stablecoins rank high because a large supply is pegged near $1. The list can also include tokenized assets that behave very differently from cryptocurrencies such as Bitcoin or Ether. The seven-day graph shows only short-term movement.

What a Portfolio Value Does Not Tell You

The total balance is a mark-to-market figure: every unit is valued at the current reference price. Several things can make it differ from what you would actually receive or what you have gained.

It is not what you would get if you sold. Selling means paying trading fees and crossing the bid-ask spread. Large orders in thinly traded tokens can also suffer slippage. The figure shown is the market price multiplied by quantity, before any of those costs.

It is not profit or loss. The tracker knows what your coins are worth, not what you paid for them. Profit depends on cost basis, the total you spent including fees. Two people with identical holdings can show the same balance while one is well ahead and the other is down. To work out gains on a specific buy and sell, use the crypto profit calculator.

It only covers what you enter. Staked coins, tokens locked in lending protocols and liquidity-pool positions count only if you enter the underlying amounts. Rewards that accrue over time won’t appear unless you update the quantity.

Stored locally means stored on one device. Because holdings sit in local storage, they live in the browser where you entered them. Clearing site data, using a private window or switching to another device will start you from an empty list.

Manual Entry vs. Connected Trackers

Portfolio trackers generally gather holdings in one of three ways:

1. Manual entry. You type coins and quantities yourself. Nothing is linked to your accounts, so the tracker cannot move funds or see balances you don’t give it. The trade-off is upkeep: every buy, sell or transfer needs an edit.
2. Public wallet addresses. Blockchain balances are public, so a tracker can read any address you paste in without needing permission to spend from it. This suits self-custody wallets. A wallet tracker follows addresses directly rather than relying on typed quantities.
3. Exchange API keys. Centralized exchanges keep balances off-chain, so connected trackers ask for an API key. Most exchanges let you limit a key to read-only permission. Give a tracker only read-only keys, never enable withdrawal permission, and revoke keys you no longer use.

Across all three methods, one rule holds: a portfolio tracker never needs your seed phrase or private keys. Anyone who has them controls the funds. A tool that asks for them is not acting as a tracker.

Manual entry also lets you build a virtual crypto portfolio: enter quantities you don’t own to test an allocation idea, then watch how it would have behaved before committing money.

Starting and Maintaining a Crypto Portfolio

Decide whether you will manage the portfolio actively or passively. Set goals and a risk tolerance you can live with in a drawdown, and choose target allocations to match.

The tracker is most useful during upkeep. Comparing current allocation with your targets shows when rebalancing is due. Some investors also set an exit plan in advance, with pre-decided prices at which they will sell part of a position. Writing those targets down before prices move helps avoid decisions made under pressure. Whatever approach you choose, update quantities after every trade or transfer. Otherwise the total balance reflects a portfolio you no longer hold.