What is Cost of Living Index?
Cost of Living Index is a free, browser-based tool in the Finance Tools suite. Enter your current salary and city. See the equivalent salary needed in 10 major world cities to maintain your lifestyle, based on cost-of-living indices (NYC = 100).
The headline benefit: compare salaries needed across major world cities.
Unlike most online tools that upload your file to a server, process it, and send it back, Cost of Living Index runs entirely in your browser. Open DevTools → Network while using it and you'll see zero file-upload requests — only static assets (JavaScript, CSS, fonts) load. Your data never leaves your device.
Why use this cost of living index?
Three reasons EasyFileKit's Cost of Living Index stands out from the crowd:
- **Private by design** — all processing happens locally via JavaScript and WebAssembly. No server ever sees your input.
- **Instant** — no upload wait, no queue, no server round-trip. Results appear the moment you act.
- **Free & unlimited** — no accounts, no watermarks, no daily caps. Use it as many times as you like.
How to use Cost of Living Index — step by step
Here's the complete walkthrough. Everything happens instantly in your browser:
- **Step 1.** Enter your current salary.
- **Step 2.** Pick your current city from the list.
- **Step 3.** See equivalent salaries needed in other cities.
- **Step 4.** Use diff % to spot cheaper or more expensive places.
That's it. No sign-up, no upload bar, no waiting. If something doesn't work as expected, check the FAQ below.
Common use cases for Cost of Living Index
People reach for Cost of Living Index in a few recurring situations:
- When you need the result **now** and can't wait for a server-based tool to upload, queue, and process your file.
- When your file is **private or sensitive** — financial documents, personal photos, medical PDFs — and you don't want it travelling across the internet.
- When you're on a **slow or metered connection** — uploading a 50 MB file just to compress it makes no sense when the same work can happen locally.
- When you've hit the **daily limit or paywall** on another "free" tool site.
Privacy: what actually happens to your data
This is the single most important point about Cost of Living Index, so it deserves its own section.
When you use this tool, your input is processed by JavaScript running in your browser tab. The code is downloaded once (cached afterwards) and executes locally on your CPU. At no point is your file, your text, or your input data transmitted to any server.
You can verify this yourself in under 30 seconds:
- Open Cost of Living Index in your browser.
- Press F12 to open DevTools.
- Switch to the Network tab and tick "Disable cache".
- Use the tool — drop a file, type text, whatever the tool needs.
- Watch the Network log. You'll see only static assets (JS, CSS, fonts, icons). No request contains your data.
This isn't a setting you toggle or a promise in a privacy policy — it's how the tool is architecturally built. There is no upload endpoint to call.
Frequently asked questions about Cost of Living Index
Q: What is the index based on?
A: Numbeo-style cost-of-living indices using NYC = 100. Includes housing, food, transportation, utilities. Index 200 = 2× NYC cost. Updated periodically — verify with current sources before relocating.
Q: Does this include taxes?
A: No — it's pre-tax cost of living. Tax structures vary widely by country (income tax, VAT, social charges). For net-equivalent, research local tax brackets separately.
Q: How accurate is the equivalent salary?
A: It's a rough estimate. Real cost of living depends on your lifestyle, housing choices, and family size. Use as a starting point, then research specific costs for your situation.
Q: What about remote work?
A: If you work remotely for a US employer but live in a cheaper country, you can save significantly. Some employers adjust pay based on location; others don't. Negotiate accordingly.
Q: Is my data uploaded?
A: No — all math runs locally in your browser.
Cost of Living Index: EasyFileKit vs server-based tools
Most "free" online tools that do what Cost of Living Index does follow the same model: you upload your file to their server, they process it with a backend script, then they send the result back. Here's the honest comparison:
| | EasyFileKit | Server-based tools |
|---|---|---|
| **Your file leaves your device?** | Never | Yes, uploaded to a server |
| **Speed** | Instant (no upload) | Slower (upload + queue + download) |
| **Privacy** | Complete | Your file is on someone else's computer |
| **Cost** | Free, unlimited | Often capped or "premium" gated |
| **Works offline** | Yes (PWA) | No |
Server-based tools aren't evil — they exist because some tasks genuinely need heavy backend compute. But for everything Cost of Living Index does, client-side processing is strictly better for you.
Under the hood: how Cost of Living Index works
Cost of Living Index is built with modern browser APIs. Depending on what it does, it may use:
- **Canvas API** — for image manipulation (pixel-level access, filters, resizing).
- **Web Crypto API** — native, hardware-accelerated cryptography (AES-GCM, SHA-256, PBKDF2) for any encryption or hashing.
- **pdf-lib / pdf.js** — fully client-side PDF creation and rendering.
- **MediaRecorder API** — for capturing screen, audio, and video.
- **WebAssembly** — for heavy codecs (image compression, media processing).
All of these run inside your browser's sandbox. They cannot access your filesystem (beyond files you explicitly choose), cannot make network requests with your data, and cannot run persistently in the background.
Pro tips for getting the most out of Cost of Living Index
- **Bookmark the tool** — it works offline once cached, so you can use it even without a connection.
- **Install EasyFileKit as a PWA** — open the browser menu and choose "Install app" for a standalone window and offline access.
- **Use it on mobile** — every tool is fully responsive and works on phones and tablets, not just desktops.
- **No file size anxiety** — because nothing uploads, you can process large files that server-based tools would reject or charge for.
Try Cost of Living Index now
The tool is right above this article — scroll up and start using it. No sign-up, no upload, no limits.
If you found Cost of Living Index useful, explore the rest of the Finance Tools suite — there are more tools that work the same private, instant, free way. And if you have a question that isn't covered in the FAQ above, the About page has our contact email.