Owlio
EN

Your portfolio across every wallet.

Owlio shows what you actually hold — across Ethereum and its L2s, BNB Smart Chain, Bitcoin, Tron and TON — in a Chrome side panel that stays open while you browse.

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

What it looks like

The side panel, at the width it actually opens. The wallet shown is vitalik.eth — a public address, not ours.

Tokens tab: total value, assets sorted by value, and the networks each one sits on
Everything you hold in one list, with the networks each asset sits on.
Data status screen: which source answered for each network and how old the reading is
Which source answered for each network — and which one did not.
Settings screen: wallet list, add address field, export, import and wipe all data
Wallets, export and import, and a wipe that really erases everything.

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 →

What you get

One portfolio, 25 networks

Add an address once; every network that address is valid on is read automatically.

Tokens, NFTs and DeFi positions

Separate tabs, each honest about what it knows. An unverified token never gets a price tag.

Value over time

A portfolio chart with 1W / 1M / 1Y / All, and a “what if I had just held BTC” benchmark line over it.

Transaction history

Downloaded in the background, so the chart reaches further back the longer Owlio runs.

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.

Privacy Mode

One tap hides every number, for when someone is looking over your shoulder.

Export, import, wipe

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

10 languages

The interface follows your browser: English, Русский, Deutsch, Español, Français, 日本語, हिन्दी, Bahasa Indonesia, Português (BR), العربية.

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