7 Best Free Website Mockup Generators — URL-Only Tools Compared (Smartmockups · Placeit · Mockuuups · Harulogs)

Why You Need Website Mockups

Right after you finish building a website, you hit a familiar wall: "How do I make this look impressive when I show it off?" Throwing a plain URL at someone doesn't communicate how the site actually feels on different devices. That's why designers and marketers have leaned on website mockups for years. Drop the page into a MacBook frame, place a slightly tilted iPhone preview beside it, and suddenly the whole thing looks like a finished product.

Portfolios, client proposals, Instagram promos, landing-page hero sections — a single mockup image doubles the perceived polish. The catch is finding a tool that lets you make one quickly, without needing Photoshop skills or a designer's eye.

5 Criteria for a Good Mockup Generator

There are dozens of mockup tools out there, but only the ones that meet these five criteria are actually worth using.

• ① Automatic URL capture — The most convenient tools render the URL for you instead of asking you to upload screenshots manually.
• ② PC and mobile in one shot — Showing only desktop is outdated. A combined PC+mobile composition demonstrates responsiveness in a single image.
• ③ Free usage — Look for guest access or a free tier that doesn't slap a watermark on your output.
• ④ Background customization — Solid colors, gradients, and patterns make the same mockup work in many contexts.
• ⑤ Native-language UI — A localized interface lowers the learning curve, especially for non-English-speaking teams.

7 Free Website Mockup Generators Compared

I tested seven popular mockup tools against the criteria above. Here's how they stack up.

As the table shows, very few tools combine automatic URL capture, simultaneous PC+mobile composition, and a Korean UI in one package.

Deep Dive — Smartmockups vs Placeit vs Mockuuups

Smartmockups is the most recognized name in the space. The free plan adds a watermark, however, and the URL capture feature is limited enough that you'll usually end up uploading screenshots by hand. Placeit, part of the Envato family, ships gorgeous templates but is effectively a paid product — overkill for casual work.

Mockuuups Studio is a favorite among designers, but free users are capped at three creations and there's no automatic URL capture, so you're still preparing screenshots manually. None of these three offer the "paste a URL and you're done" experience, and none come with a Korean interface.

The most common real-world workflow looks like this: a client asks for "a quick visual," and you ① screenshot the desktop site, ② screenshot the mobile view, ③ open Photoshop or Figma to drop both into device frames. Even when you're fluent in the process, it takes 10–15 minutes. A tool with automatic URL capture collapses that entire sequence into a single click.

One URL, Zero Hassle: Harulogs Mockup Generator

The tool that solves all of these pain points at once is the Harulogs Website Mockup Generator. Using it really is this simple.

1. Paste a URL — Drop in the address of the site you want to mock up.
2. Pick a style — Choose from 8 layouts: Classic, Desktop, Mobile, Side-by-side, Browser, Laptop, Tilt, Minimal.
3. Set the background and download — Backgrounds change instantly without re-capturing. Save as PNG.

Under the hood, a headless Chrome browser renders the site at PC (1280×800) and mobile (390×844, iPhone proportions) resolutions. In six to twelve seconds you get a finished image with the MacBook and iPhone frames already composed. Guests get three free generations per month, and logged-in users have no limit. The fact that the entire UI is in Korean (the audience it's primarily built for) means there's zero translation friction for local teams.

Practical Mockup Use Cases

Once you have the mockup, here's where it shines.

The Side-by-side style is especially effective for client proposals because it telegraphs responsiveness without you having to spell it out. Showing mobile and desktop side by side visually says "this is the same site, optimized everywhere."

One more tip: when you build a mockup, set the background tone slightly different from the site's primary color. Match it exactly and the site disappears into the canvas; go too high-contrast and the mockup looks chaotic. Harulogs lets you swap backgrounds instantly, which makes color experimentation fast.

Verdict — Which Tool for Which Situation

Each tool has its sweet spot.

For most "I just need one mockup for a portfolio slide or a social post" situations, Harulogs is the most efficient choice — no install, no signup, no payment. Paste a URL, get a finished image in about ten seconds, and spend the time you saved on the actual work.

Try the Harulogs Mockup Generator right now with one of your own website URLs. The first three runs require no signup at all.

References

• Harulogs Website Mockup GeneratorA Korean-first tool that auto-generates PC + mobile mockups from a single URL in about 10 seconds.
• SmartmockupsA widely used global mockup service with an extensive device-frame library.
• Placeit by EnvatoA premium mockup and design library aimed at paid creative workflows.
• Mockuuups StudioA popular mockup creation tool among product and UI designers.