A Webstarted Toolbox widget · macOS & Windows

Every dollar rate, side by side.

A currency converter that knows one rate isn’t enough. For the Argentine peso, bolívar and boliviano it shows the official rate next to blue, MEP, CCL, card and crypto — with the gap vs. official spelled out. Plus plain conversion across ~19 currencies, right in your menu bar.

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Free · No account · Installs from the Toolbox catalog
Multiple ratesOfficial + blue, MEP, CCL…
Gap vs. officialThe spread, spelled out
~19 currenciesEveryday conversion
In the menu barOne click, no account
Parallel rates

In a controlled market, the gap is the story.

Where currencies are controlled, the “official” number rarely matches reality. For USD against the Argentine peso, the Venezuelan bolívar and the Bolivian boliviano, the converter lines up the official rate with the blue (parallel), MEP, CCL, card and crypto rates — and shows the percentage gap against official for each, so you can see the real spread without reaching for a calculator.

  • Official, blue/parallel, MEP, CCL, card and crypto
  • Percentage gap vs. the official rate
  • Built for USD ↔ ARS, VES and BOB
  • Rates from external sources — informational only
General conversion

And the everyday conversion, too.

Beyond the special cases, it’s a straightforward converter across about 19 currencies — dollars to euros, pounds to reais, whatever you need. Type an amount, pick the pair, and read the result. It lives in your menu bar, so it’s one click away when a number comes up mid-task.

  • ~19 currencies for plain conversion
  • Type an amount and read it instantly
  • One click from the menu bar — no account
Part of Webstarted Toolbox

Installed from the catalog, in one click.

Currency Converter isn’t bundled into the app — it’s a widget in the Webstarted Toolbox catalog. Open the catalog tab (🧰), press the “+” next to Currency Converter, and it drops into your menu bar. No reinstall, no app update. Here are a few of its neighbors:

FAQ

Questions, answered.

Do I have to download anything separately?

No. Currency Converter is a widget in the Webstarted Toolbox catalog. Open the catalog tab (🧰) inside the app, hit the “+” next to Currency Converter, and it installs in one click — no separate download, and no app update needed.

What are “blue”, MEP and CCL rates?

In countries with exchange controls — Argentina, Venezuela, Bolivia — the official rate isn’t the only one. The blue (parallel), MEP and CCL rates are what a dollar really trades at, and the widget shows each one alongside the official rate plus the gap between them, so the spread is obvious at a glance.

Which currencies does it cover?

General conversion across about 19 currencies, plus the extra multi-rate view (official, blue/parallel, MEP, CCL, card, crypto) for USD against the Argentine peso, the Venezuelan bolívar and the Bolivian boliviano.

Where do the rates come from — are they official?

Rates come from external public sources (exchangerate-api and dolarapi) and are shown for information only — they’re not a quote, financial advice, or a rate you can transact at. Always confirm with your bank or exchange before acting on a number.

Get Webstarted Toolbox

Free to use. Download the app, then add Currency Converter from the catalog in one click. macOS 12+ and Windows 10+.

Free beta · macOS · Windows (x64) · Signed & notarized · No account required
Keep exploring

One icon, many small tools

This is just one of the widgets in Webstarted Toolbox. Here are the rest:

Keep Awake Stop your Mac from sleeping, on your terms. 📊 LLM Quota Pace your Claude / AI usage against the clock. 🍅 Pomodoro 25/5 focus cycles in your menu bar. Countdown Live countdowns to anything that matters. Clipboard history Your recent copies, one keystroke away. {} Dev tools JSON, Base64, JWT, regex, epoch — offline. Quick Note A scratchpad that autosaves as you type. 🌐 My IP Your public IPv4 and IPv6, copyable, with ISP and location. 📈 System Info CPU, memory and GPU in your menu bar. 🐹 Topos A 30-second reflex game in your menu bar. 💣 Minesweeper Classic minesweeper in your menu bar. 🪙 Crypto Prices Live crypto prices with 24h change, in your menu bar. 🌍 World Clocks Several cities' time at once — daylight saving handled automatically. 🔳 QR Generator QR codes for text, URLs, WiFi or contacts — offline. 🔑 Password Generator Strong passwords & passphrases, fully offline. 🌤️ Weather Any city, now + the days ahead — no API key. 🔥 Habit Tracker Daily streaks — don't break the chain. 100% local. 🔤 Text Tools Change case, slugify, count, dedupe — offline. 🎲 Random Picker Pick from a list at random, or roll dice. 🎨 Color Picker Pick a color, copy hex / rgb / hsl / hsv — offline. 🌐 Translator 18 languages from the menu bar — no API key needed. 🔀 Text Diff Compare two texts line by line — 100% local. Cron Wizard Cron expressions in plain English, with the next runs. 🗃️ Dummy Data Lorem ipsum and fake rows in JSON, CSV or SQL. 🔊 Focus Sounds White, pink or brown noise — synthesized, no files. 🔁 Subscriptions What your recurring services cost per month and year. 🧾 Rates & Tax Hourly ↔ yearly, and add or extract tax. Network Fees Ethereum gas and Bitcoin fees, right now. 📣 UTM Builder Trackable campaign links, normalized so GA behaves. 🌿 Git Status Which of your repos are dirty, unpushed or behind. 🧮 Calculator Type the calculation, read the result as you go. 🎬 Teleprompter Your script scrolls at the speed you read — in wpm. 📊 Stocks Stocks and ETFs with the day’s change — no API key. 🔥 Fireplace A fireplace generated on the fly — no files, no network. 💼 Job Tracker Your applications, with an OS alarm before each interview. Converter 57 units in 8 categories, converted with zero network. Alarms Clock-time alarms that ring with everything closed. 🗂️ Project Boards Kanban boards with your columns, and a due date that notifies you. 📡 Website Monitor Are your sites up? The code and the latency, from your machine. 📤 Send to another computer Text and images to another computer on your network. 📅 Calendar A month view in your menu bar.