Image
Convert Image
Convert between image formats with control over quality. WebP and AVIF typically cut file size substantially against JPG at the same visual quality, which is usually why people are here.
Runs entirely in your browser
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How it works
- 01Drop in an image in any format your browser can read.
- 02Pick the output format, and a quality level for the lossy ones.
- 03Convert and download.
Questions
- Are my files uploaded anywhere?
- No. The file is read from your disk by the browser and processed in this tab using JavaScript and WebAssembly. Nothing is transmitted, which you can verify by opening your browser's network panel or by disconnecting from the internet — the tool keeps working.
- Which format should I use?
- WebP is the safe modern default — typically 25-35% smaller than JPG at the same visual quality and supported everywhere current. AVIF is smaller still but slower to encode and not every browser can create it. PNG is lossless and right for graphics with sharp edges or transparency.
- Why did AVIF fail?
- Not every browser ships an AVIF encoder, even if it can display AVIF. The tool detects this and tells you rather than silently handing back a PNG.
- Is there a catch — a limit, a watermark, a sign-up?
- None. Because the work happens on your machine rather than a server, there is no per-file cost to recover and therefore nothing to meter. No account, no queue, no watermark.