WebP Converter
Batch-convert JPG, PNG and GIF to WebP for smaller, faster images.
- Secure upload
- Deleted after processing
- No watermark
Click to upload or drag and drop
JPG, PNG, GIF, BMP or WebP — drop as many as you need
About the webp converter
This free online WebP converter turns JPG, PNG, GIF and BMP files into WebP — in batches, with a live quality slider and a size-savings readout for every file, so you can see exactly how much smaller each image gets before you download anything. WebP is Google's modern image format, and it's specifically designed to beat both JPG and PNG at their own game: it typically produces 25-35% smaller files than an equivalent-quality JPG, while — unlike JPG — also supporting full transparency the way PNG does. It's effectively the best of both older formats in a single one, which is why it's become the default format for screenshots and exports in Chrome, Android and a growing number of design and photo tools.
File size is one of the biggest levers on how fast a website feels, and Google's own Core Web Vitals — a direct ranking factor — reward pages that load quickly. Converting a folder of PNG screenshots or heavy camera JPGs to WebP before uploading them is one of the simplest, highest-leverage things you can do for page speed and search ranking: smaller images mean faster paint times, less bandwidth, and a better score on the performance audits tools like Google PageSpeed Insights and Lighthouse run. Multiplied across every image on a product listing, blog post or portfolio, that adds up to a meaningfully faster site with zero design changes.
Because WebP supports transparency natively, converting a transparent PNG or GIF preserves that transparency automatically — no background color or flattening step required, unlike converting to JPG. The quality slider ranges from an aggressive "smallest file" preset up through a near-lossless setting for when visual fidelity matters more than a few extra kilobytes, and the live per-file percentage-saved readout lets you dial in the right balance for your specific images rather than guessing at a single global setting.
Every conversion happens locally in your browser using the HTML canvas API — nothing is ever uploaded to a server, so it's instant, works the same on a phone as a laptop, and is the safest way to batch-convert private or unpublished images, since there's no upload and no server-side copy to worry about.
Key features
- Batch conversion with a live per-file quality slider and size-saved readout
- Automatic transparency preservation from PNG and GIF sources
- Quality presets from smallest-file to near-lossless
- Individual downloads or one "Download all" for the whole batch
Common use cases
Faster websites
Convert product photos, screenshots and banners to WebP to cut page weight and improve Core Web Vitals and search ranking.
Smaller image libraries
Batch-shrink a folder of PNGs or JPGs to reclaim storage and speed up every future upload.
Transparent graphics, smaller files
Convert transparent PNGs to WebP and keep the transparency while cutting file size significantly.
Modern app & CMS exports
Prepare images in the format most current CMSs, image CDNs and build pipelines prefer by default.
How to use it
- 1Drop in one or more JPG, PNG, GIF or BMP files — as many as you need.
- 2Adjust the quality slider or pick a preset — the size-saved percentage updates live for every file.
- 3Check that transparency carried over correctly for any PNG or GIF source.
- 4Download individual files or click Download all to save the whole batch as WebP.
Supported formats & limits
Accepts JPG, PNG, GIF and BMP; always outputs WebP. No limit on how many files you can batch, beyond your device's memory.
Privacy & security
Every conversion happens locally in your browser using the canvas API — files never leave your device, even in a large batch.
FAQ
- Are my files uploaded to a server?
- No. Every conversion happens locally in your browser using the canvas API — files never leave your device, even in a large batch.
- Is WebP actually smaller than JPG?
- Usually, yes — WebP typically produces 25-35% smaller files than JPG at a visually comparable quality level, and the live readout shows the exact savings for your own images.
- Does WebP support transparency?
- Yes, fully — unlike JPG. Converting a transparent PNG or GIF keeps the transparency automatically, with no extra steps.
- Will WebP files open everywhere?
- Every current browser and most modern apps and operating systems support WebP. A small number of older or specialized tools still expect JPG or PNG — the JPG Converter and PNG Converter tools on this site cover that case.