What is Media Query Generator?
Media Query Generator is a free, browser-based tool in the Design & CSS Tools suite. Generate mobile-first, min-width or max-width media query blocks from configurable mobile/tablet/desktop breakpoints. Output clean @media CSS for any selector.
The headline benefit: scaffold @media blocks for mobile, tablet & desktop with one click.
Unlike most online tools that upload your file to a server, process it, and send it back, Media Query Generator 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 media query generator?
Three reasons EasyFileKit's Media Query Generator 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 Media Query Generator — step by step
Here's the complete walkthrough. Everything happens instantly in your browser:
- **Step 1.** Set the mobile, tablet and desktop breakpoint widths in px.
- **Step 2.** Choose a strategy: mobile-first (min-width), desktop-first (max-width), or min-width override.
- **Step 3.** Type the selector your rules apply to (e.g. .container).
- **Step 4.** Copy the generated @media blocks into your stylesheet.
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 Media Query Generator
People reach for Media Query Generator 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 Media Query Generator, 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 Media Query Generator 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 Media Query Generator
Q: Which strategy should I use?
A: Mobile-first (min-width) is the modern recommended approach: base styles target the smallest viewport, then min-width media queries progressively enhance for larger screens. It keeps your CSS smaller and faster on mobile.
Q: What are good default breakpoints?
A: Common values are 480px (mobile), 768px (tablet) and 1024px (desktop). The generator sorts them automatically so the order is always correct.
Q: Can I generate both min-width and max-width?
A: Each strategy produces one style of breakpoint. If you need both, run the generator twice with different strategies and merge the output — they're complementary.
Q: Does the output include vendor prefixes?
A: No — @media queries have been supported unprefixed in every browser for over a decade. No -webkit- or -moz- prefixes are needed.
Q: Is my selector validated?
A: The selector is passed through verbatim, so any valid CSS selector works (.class, #id, nav > ul, [data-attr] etc). An empty selector falls back to .container.
Media Query Generator: EasyFileKit vs server-based tools
Most "free" online tools that do what Media Query Generator 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 Media Query Generator does, client-side processing is strictly better for you.
Under the hood: how Media Query Generator works
Media Query Generator 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 Media Query Generator
- **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 Media Query Generator now
The tool is right above this article — scroll up and start using it. No sign-up, no upload, no limits.
If you found Media Query Generator useful, explore the rest of the Design & CSS 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.