Owlio
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A DeFi portfolio tracker in your Chrome side panel.

All your wallets in one list — across Ethereum and its L2s, BNB Smart Chain, Bitcoin, Tron and TON. No account and no server: your addresses are stored in this browser and nowhere else.

Get Owlio for Chrome

Free. Open about what it does not know. Nothing to sign up for.

Sound familiar?

  • My coins sit in a dozen wallets on different networks, and I never know the total.
  • Every tracker wants a sign-up or a wallet connection just to show me a balance.
  • The tracker shows less than I hold, and I can't tell which network failed to load.
  • I don't want my addresses stored on someone else's server.

How it works

Tokens tab: total value, assets sorted by value, and the networks each one sits on
The side panel, at the width it actually opens. The wallet shown is vitalik.eth — a public address, not ours.
Step 01

Install and open the panel

Add Owlio to Chrome. It opens as a side panel and stays open while you browse.

Step 02

Add a wallet address

Paste an address once. No sign-in, no wallet connection, no signatures.

Step 03

Owlio reads every network

Every network the address is valid on is read automatically.

Result

Everything you hold, in one list

Tokens, NFTs and DeFi positions in separate tabs, plus a chart of portfolio value over time.

What you get

There is no server

No account, no sign-in, no database. Your addresses and your portfolio live in this browser's storage and nowhere else, because there is nowhere else for them to go. That is not a privacy setting you can weaken — it is how the product is built.

What that costs, said plainly: to show balances and prices, Owlio talks to public blockchain and market data services straight from your browser. Those services see what they are asked about, such as a wallet address. That is unavoidable for any wallet tracker.

What Owlio does not do: no analytics, no telemetry, no crash reporting, no advertising and no remote code.

Read the privacy policy →

Data status, not silence

Public explorers go down. When one does, Owlio names the network it could not read instead of quietly showing you less.

Data status screen: which source answered for each network and how old the reading is

Export, import, wipe

Your setup is a file you control. Wipe everything in two clicks — there is no copy anywhere else.

Settings screen: wallet list, add address field, export, import and wipe all data

One portfolio, 25 networks

One address covers every network it is valid on — add an Ethereum-style wallet once and all nineteen EVM networks below are read for it.

  • Ethereum
  • Base
  • Arbitrum
  • Optimism
  • Polygon
  • Gnosis
  • zkSync Era
  • Celo
  • Unichain
  • Arbitrum Nova
  • World Chain
  • Lisk
  • Monad
  • Avalanche C-Chain
  • Robinhood Chain
  • Manta Pacific
  • Scroll
  • BNB Smart Chain
  • Arc
  • TON
  • Tron
  • Bitcoin
  • Bitcoin Cash
  • Litecoin
  • Dogecoin

Put all your wallets in one panel

Free. Open about what it does not know. Nothing to sign up for.

Get Owlio for Chrome

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