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Cloudy Convert

The Ultimate All-in-One Image Converter

Instantly convert, resize, and optimize images in any format with our free browser-based converter. It's fast near-instant processing and secure all work happens locally, so there's no need to install software.

Broad Format Support

Convert to and from a wide array of image formats to suit any need, from web optimization to universal compatibility.

Supports all popular formats (JPEG, PNG, WebP, AVIF, GIF, BMP, etc.). Google Search recognizes BMP, GIF, JPEG, PNG, WebP, SVG, and AVIF, and our converter handles them all, plus additional types like HEIC, SVG, and PDF.

JPG
PNG
WebP
AVIF
GIF
BMP
HEIC
SVG
PDF

How to Convert Your Images: A Simple 6-Step Guide

Our browser-based image converter is designed for simplicity and power. Follow these steps to transform your images for any purpose, from web development to social media posts, all without compromising your privacy.

1. Upload Your Images

Drag and drop multiple files or an entire folder. We support batch image conversion for maximum efficiency and quality.

2. Configure Format & Size

Select your output format (e.g., WebP, PNG, JPG, AVIF) and quickly adjust quality, resize dimensions, and custom filenames.

3. Convert Instantly

Click 'Convert All' to process your images securely and instantly in your browser, full privacy, and fast batch conversion.

4. Preview Changes

Use the slider to compare the original and converted image instantly. Check quality and file size reduction before downloading.

5. Download Files

Get your optimized images individually or download them all together in a single ZIP file for fast and convenient batch downloading.

6. Enjoy Full Privacy

All processing happens locally in your browser using WebAssembly. Your files are never uploaded to a server.

A Full-Featured Image Conversion Toolkit

Go beyond simple format changes. Our all-in-one converter is packed with powerful features to give you complete control over your images. Whether you need to optimize for web performance, prepare assets for a project, or simply convert a folder of photos, our tool has you covered.

Complete Privacy & Security

Our browser-based converter works entirely on your device. All processing happens locally through WebAssembly and Canvas — no uploads, no tracking, ensuring your images remain fully private and secure at every step.

Powerful Batch Conversion

Simply drag and drop multiple files or folders to convert in bulk. Process hundreds of images at once, then download everything neatly organized in a single ZIP file — fast, efficient, and effortless.

Total Output Control

Adjust quality, dimensions, and filenames with precision. Switch between lossy or lossless compression modes to balance speed, size, and fidelity exactly how you need it for your workflow.

Blazing-Fast & Efficient

Experience instant conversions powered by WebAssembly. Our engine uses near-native speed to process images in seconds, even large batches — no waiting, no server delay, just pure performance.

Instant Preview

Preview compression results in real time using a live side-by-side slider. Instantly compare the original and optimized images to verify quality, clarity, and file size savings before downloading.

No Software Installation

Run the image converter entirely online — nothing to install or configure. Works flawlessly on any device, browser, or platform, delivering desktop-grade performance straight from the web.

Why Convert Images to Different Formats?

Choosing the right image format is crucial for balancing visual quality, file size, and functionality. Different formats are optimized for different purposes, and converting between them can dramatically improve your website's performance and user experience.

  • For Performance (WebP & AVIF): These modern formats offer superior compression, resulting in significantly smaller file sizes than traditional JPG and PNG. Converting to WebP or AVIF is one of the most effective ways to speed up your website's load times.
  • For Compatibility (JPEG): JPEG is the most universally supported image format, making it a safe choice for ensuring your images display correctly across all devices and email clients.
  • For Quality & Transparency (PNG): PNG is a lossless format, meaning it preserves 100% of the original image quality. It's the best choice for graphics, logos, and images that require a transparent background.

Looking for a Specific Tool?

While this all-in-one tool is powerful, we also have specialized converters for specific needs. Each one is fine-tuned for a particular task.

  • Web Performance: If your main goal is to speed up your website, our PNG to WebP Converter is a great choice.
  • Vector Graphics: For working with logos and icons, check out our SVG Converter & Toolkit to optimize SVGs or convert them to JSX.
  • E-commerce: Selling on eBay? Our dedicated eBay Image Resizer helps you meet all of eBay's image requirements.

Understanding Client-Side Conversion

Unlike many online tools that require uploading your images, our converter runs entirely on your device. This client-side approach uses modern browser technologies (like WebAssembly and the HTML5 Canvas API) to perform all work locally. For example, tools like Google’s Squoosh similarly process images in-browser, ensuring that your files never leave your computer.

The benefits are significant: your images are never transmitted over the internet, eliminating any risk of interception. Converting images on your machine is also incredibly fast – leveraging WebAssembly for near-native speed so there’s no waiting for slow uploads or downloads. You get the power of a desktop application with the convenience of a website.

How We Compare to Other Online Tools

FeatureOur ConverterOnline-ConvertCanva ConverterAdobe Express
Batch Conversion
Client-Side Processing
Adjustable Quality
Limited
ZIP Downloads
Privacy & Security
High
Moderate
Moderate
Moderate

Frequently Asked Questions

Have an idea for a new tool?

We're always looking to build useful utilities for the community. If there's something you'd love to see, let us know!