이미지 변환기

PNG, WebP, JPEG 사이에서 이미지를 변환하고 필요하면 크기도 조정합니다. 모든 처리는 브라우저 안에서, 업로드는 일절 없습니다.

Image Converter is a tiny, focused tool for moving images between the three formats you actually need on the web — PNG, WebP, and JPEG — and resizing them at the same time. Everything happens inside the popup using the browser's built-in `<canvas>` element. **No images ever leave your machine. No uploads, no servers, no network requests.** Key features: - Drag-and-drop a PNG, JPEG, or WebP into the popup (or click to choose a file). - Pick the target format: PNG, WebP, or JPEG. - For lossy formats (WebP, JPEG), a quality slider from 0.60 to 1.00. - Optional resize: enter a new width or height; "Lock aspect ratio" recomputes the other dimension automatically. - See the original size and the converted size side by side, with the % change. - Download the result with a sensible filename (`original-name.webp`, etc.). - Your last format, last quality, and aspect-lock preference are remembered locally. This extension has exactly one permission — `storage` — used only to remember your conversion preferences. It cannot read web pages, cannot read your tabs, and never makes network requests.