Image Format Converter

What is an image converter?

An image converter changes image files from one format to another. Whether you need to convert PNG to JPEG for smaller file size, JPEG to WebP for better web performance, or HEIC to JPEG for compatibility, this tool handles the conversion entirely in your browser — your images never leave your device.

Different image formats serve different purposes. JPEG offers good compression for photographs. PNG supports transparency and lossless compression. WebP provides superior compression to both JPEG and PNG. SVG is vector-based and scales infinitely. Choosing the right format for your use case improves loading speed, quality, and compatibility.

Image format comparison

• JPEG — lossy compression, best for photographs. No transparency. Adjustable quality/size tradeoff.
• PNG — lossless compression, supports transparency. Larger files but perfect quality. Ideal for screenshots and graphics.
• WebP — modern format by Google. 25-35% smaller than JPEG at equivalent quality. Supports transparency. Supported by all modern browsers.
• GIF — limited to 256 colors. Supports animation and basic transparency. Being replaced by WebP and AVIF for most uses.

How to use this tool

Upload an image or drag and drop it into the tool. Select the target format and adjust quality settings if available. The converted image is generated in your browser and ready to download. Batch conversion is supported — drop multiple files to convert them all at once.

Choosing the right format for the web

For web pages, WebP is the best general-purpose format — it produces smaller files than JPEG and PNG with comparable quality. Use JPEG as a fallback for older browsers. Use PNG only when you need transparency or pixel-perfect graphics. AVIF offers even better compression than WebP but browser support is still growing. Use the HTML picture element to serve the best format each browser supports.

Frequently asked questions

Does converting between formats lose quality?

Converting from a lossy format (like JPEG) to another lossy format introduces additional quality loss — each re-encoding degrades the image slightly. Converting from a lossy format to lossless (JPEG to PNG) preserves the current quality but does not restore lost detail. Converting between lossless formats (PNG to WebP lossless) preserves perfect quality.

Is my image uploaded to a server?

No. This tool converts images entirely in your browser using the Canvas API and client-side JavaScript. Your images never leave your device. This ensures complete privacy — no file uploads, no server processing, no data retention. The conversion happens locally in your browser's memory.