Convert JPG to WebP
WebP fits the same photo into a noticeably smaller file than JPG. Convert here to speed up your site, with a quality slider you control — and nothing uploaded.
JPG vs WebP: what changes
JPG has powered web photos for decades, but it’s no longer the most efficient option. For the same visual quality, WebP usually lands 25–35% smaller, which means faster page loads and lower bandwidth bills.
Because every current browser has supported WebP since 2020, it’s safe to ship in production today. This converter re-encodes your JPGs locally — drag in a folder of photos, set the quality, and compare the new sizes before you download. Nothing is uploaded, so you can experiment with the quality slider as much as you like.
How to convert JPG to WebP
- Open the converterOpen the FavGrab converter from the button above — no account needed.
- Drop your JPGsAdd one image or a batch of JPG / JPEG photos to optimise.
- Choose WebP and tune qualitySelect WebP, then set the slider — around 80 is an excellent balance for web images.
- Convert & compareConvert and check the new size shown next to each file before downloading.
JPG vs WebP at a glance
JPG
- Compression
- Lossy — adjustable quality
- Transparency
- No (flattens onto a background)
- Compatibility
- Universal — opens literally everywhere
- Best for
- Photographs, email attachments, uploads that must just work
WebP
- Compression
- Lossy or lossless — adjustable
- Transparency
- Yes (alpha channel)
- Compatibility
- Every modern browser since 2020
- Best for
- Fast-loading website images at small file sizes
When to convert JPG to WebP
- Speeding up a website by shrinking photo payloads
- Improving Core Web Vitals / Lighthouse scores
- Serving smaller image galleries without visible quality loss
- Reducing storage and bandwidth costs for image-heavy sites
Why convert in your browser
Nothing is uploaded
Every byte is decoded and re-encoded on your own machine using Canvas and WebAssembly. Your images never touch a server, so there is no upload bar, no queue, and no copy of your file sitting in someone else’s bucket.
Works offline
After the first load the converter is cached. Open it on a plane, on hotel Wi-Fi, or with the cable unplugged and it still runs at your CPU’s full speed.
Frequently asked questions
How much smaller will the WebP be?
For most photos, expect roughly 25–35% smaller than the JPG at the same perceived quality. The converter shows the resulting size for each file so you can verify before downloading.
Is WebP safe to use on my website?
Yes — every current browser (Chrome, Edge, Firefox, Safari) has supported WebP for years. It’s a standard choice for production web images.
Will I lose quality converting JPG to WebP?
A JPG is already lossy, and WebP re-encodes it, so there is a small generational loss. At quality 80 or above it’s visually negligible while the file gets meaningfully smaller.
Can I convert a batch of JPGs at once?
Yes — drop many files, convert them together, and download them all as one ZIP.
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Make your photos lighter
Convert JPG to WebP and watch the file size drop — all in your browser.
Open the converter →