Image to WEBP
Re-encode JPG, PNG, WEBP, HEIC, or HEIF images into modern WEBP files.
- Browser-only
- No upload
- No login
- No watermark
- Clear instantly
- Open-source engines
Drop files here
or use the buttons below - .jpg, .jpeg, .png, .webp, .heic, .heif
Files stay in this browser tab.
Your file stays on this device · conversion runs locally in your browser
Deep dive
What is Image to WEBP?
Image to WEBP re-encodes JPG, PNG, WEBP, HEIC, and HEIF files into the modern WEBP format. WEBP typically yields much smaller files than JPG or PNG at the same visual quality, which helps websites, blogs, and app assets load faster.
FormatSwitch converts images in your browser. HEIC and HEIF photos are decoded locally first, then encoded as WEBP. There is no upload, no signup, and you can batch-convert an entire folder of assets from your device.
When to use it
- Optimise images for a website or blog.
- Shrink product images for an ecommerce store.
- Convert iPhone HEIC photos into web-ready WEBP files.
- Save space by re-encoding a folder of photos.
How to use it safely without uploading
Drop your JPG, PNG, WEBP, HEIC, or HEIF files and press Convert. WEBP outputs are generated locally and can be downloaded individually or as a ZIP.
Browser-based vs server-based conversion
Most online converters upload your files to their servers, process them there, and then let you download the result. That means your file exists on someone else's computer, often in logs and backups, sometimes indefinitely. FormatSwitch is different: every conversion runs on your device using WebAssembly and the browser's built-in Canvas and PDF engines. Your file never leaves your computer, so there is nothing to leak, nothing to subpoena, and nothing to trust us on — the code that does the work is running right in your tab.
FAQ
Image to WEBP — questions people ask
- Are the images uploaded?
- No. Files are processed entirely in your browser using WebAssembly and the Canvas API. Nothing is uploaded to a server, and no copy is kept once you close or refresh the tab.
- Will every browser open the WEBPs?
- Yes — every modern browser supports WEBP. Older desktop apps may still need a JPG copy.
- Can it convert HEIC to WEBP?
- Yes. HEIC and HEIF photos are supported.
- Is there a watermark?
- Never. FormatSwitch adds no watermark, logo, or quality cap to your output — the file you download is only what your browser produced.
- Does it work on mobile?
- Yes. Every tool runs on modern iOS Safari and Android Chrome. Very large files may be slower on mobile because of tighter memory limits.
- Are files stored anywhere?
- No. Files live only in your browser's memory (JavaScript heap). They disappear when you clear the queue, refresh, or close the tab. There is no server, no database, no log.
- How much smaller will the WEBPs be?
- Typical savings are 25–35% versus JPG and up to 80% versus PNG at the same visual quality, though the exact ratio depends on the source image.