Are you looking for a free web tool that can convert images between JPG, PNG,
and WEBP formats? In this post from FreeWebTooools, I’ll show you how to build a
beautiful, responsive Multi-Tool Image Converter Website using just HTML, CSS,
and JavaScript — no backend or API required!
🔗 Live Demo
MultiTool Image Converter | JPG ↔ PNG ↔ WEBP
Convert Your Images Instantly
JPG ↔ PNG ↔ WEBP — Fast, Secure, and Free
Start Converting
Frequently Asked Questions
Is my image uploaded to any server?
No. All conversions happen directly in your browser using the Canvas
API.
Do I need to install anything?
No. Everything works online in your browser — 100% client-side.
Is it free to use?
Yes! This tool is completely free with unlimited conversions.
:root { --bg: #ffffff; --text: #222; --accent: #007bff; --card: #f8f9fa; }
body.dark { --bg: #121212; --text: #f1f1f1; --accent: #66b2ff; --card: #1e1e1e;
} body { margin: 0; font-family: "Poppins", sans-serif; background: var(--bg);
color: var(--text); transition: background 0.4s, color 0.4s; } /* Navbar */
.navbar { display: flex; justify-content: space-between; align-items: center;
padding: 1rem 2rem; background: var(--card); position: sticky; top: 0; z-index:
10; } .navbar nav a { margin: 0 10px; text-decoration: none; color: var(--text);
transition: color 0.3s; } .navbar nav a:hover { color: var(--accent); }
.theme-toggle { background: none; border: none; font-size: 1.2rem; cursor:
pointer; } /* Hero */ .hero { text-align: center; padding: 4rem 1rem; } .hero h1
{ font-size: 2.5rem; margin-bottom: 1rem; } .btn-primary { background:
var(--accent); color: #fff; padding: 0.7rem 1.5rem; border-radius: 6px;
text-decoration: none; transition: 0.3s; } .btn-primary:hover { opacity: 0.8; }
/* Tools */ .tools-section { padding: 2rem; text-align: center; } .tool-grid {
display: grid; grid-template-columns: repeat(auto-fit,minmax(250px,1fr)); gap:
1.5rem; } .tool-card { background: var(--card); padding: 1.5rem; border-radius:
10px; box-shadow: 0 3px 8px rgba(0,0,0,0.1); transition: transform 0.3s; }
.tool-card:hover { transform: translateY(-5px); } .file-input { margin: 1rem 0;
} canvas { display: block; max-width: 100%; margin: 0 auto 1rem; border-radius:
6px; } .btn { background: var(--accent); border: none; padding: 0.5rem 1rem;
color: #fff; border-radius: 5px; cursor: pointer; transition: 0.3s; } .btn:hover
{ opacity: 0.8; } /* FAQ */ .faq { padding: 2rem; max-width: 700px; margin:
auto; } .faq-item { margin-bottom: 1.2rem; } .faq-item h4 { color:
var(--accent); } /* Footer */ footer { background: var(--card); padding: 2rem; }
.footer-grid { display: grid; grid-template-columns:
repeat(auto-fit,minmax(200px,1fr)); gap: 1.5rem; } footer a { color:
var(--text); text-decoration: none; } footer a:hover { color: var(--accent); }
.socials a { margin-right: 10px; } footer input { width: 100%; padding: 0.5rem;
margin-bottom: 0.5rem; border-radius: 4px; border: 1px solid #ccc; } footer
button { background: var(--accent); color: #fff; border: none; padding: 0.5rem
1rem; border-radius: 4px; } footer button:hover { opacity: 0.8; } footer p {
text-align: center; margin-top: 1.5rem; font-size: 0.9rem; } /* Responsive */
@media (max-width: 600px){ .hero h1 { font-size: 2rem; } } // Theme toggle const
toggleBtn = document.getElementById("theme-toggle"); const currentTheme =
localStorage.getItem("theme"); if (currentTheme === "dark")
document.body.classList.add("dark"); toggleBtn.textContent =
document.body.classList.contains("dark") ? "☀️" : "🌙";
toggleBtn.addEventListener("click", () => {
document.body.classList.toggle("dark"); const theme =
document.body.classList.contains("dark") ? "dark" : "light";
localStorage.setItem("theme", theme); toggleBtn.textContent = theme === "dark" ?
"☀️" : "🌙"; }); // Image conversion function convertImage(type) { let input,
format; switch (type) { case "jpgToPng": input = "jpgToPngInput"; format =
"image/png"; break; case "pngToJpg": input = "pngToJpgInput"; format =
"image/jpeg"; break; case "pngToWebp": input = "pngToWebpInput"; format =
"image/webp"; break; case "webpToJpg": input = "webpToJpgInput"; format =
"image/jpeg"; break; } const file = document.getElementById(input).files[0]; if
(!file) return alert("Please upload an image first!"); const img = new Image();
img.onload = function () { const canvas = document.createElement("canvas");
canvas.width = img.width; canvas.height = img.height; const ctx =
canvas.getContext("2d"); ctx.drawImage(img, 0, 0); const link =
document.createElement("a"); link.download = "converted-image." +
format.split("/")[1]; link.href = canvas.toDataURL(format, 1.0); link.click();
}; img.src = URL.createObjectURL(file); }
About | MultiTool Converter
About Us
MultiTool Image Converter is a lightweight web app created to help users
convert images quickly and securely right in their browser. Our goal is
simplicity, privacy, and speed — no uploads, no tracking, no hidden
costs.
We designed this tool for designers, students, and photographers who
need quick format conversions without installing software. Everything is
handled locally on your device using modern web technology.
