Image Compressor & WebP Converter
Make your images smaller for a faster website. Compress many images at once, resize them for the web and convert to WebP. Your images are processed on your own device and never uploaded.
Image compressor & WebP converter
How to compress images
- Drop your images into the box, or tap it to choose files from your phone or computer.
- Pick WebP for the smallest files, or JPG if you need to share them with older software.
- Set the quality (75% is a good start) and a maximum width for where the image will be used.
- Check the before and after sizes, then download each image or tap Download all.
Why image size matters
Images are often the heaviest part of a web page. Large images make pages slower to load, especially on mobile data, and the largest image above the fold often decides your Largest Contentful Paint (LCP) score, one of Google’s Core Web Vitals.
Smaller images mean faster pages, which helps visitors stay, helps your pages pass Core Web Vitals, and lowers the data your visitors spend to see your site.
Image checklist for a fast website
- Resize before you upload. Don’t upload a phone photo at full resolution for a small slot.
- Use WebP for photos and graphics, and keep PNG only where you need lossless quality.
- Name files clearly, like
dental-clinic-pune-reception.webp, and add alt text that describes the image. - Lazy-load images below the fold, but not the main hero image, which should load first.
- Set width and height on images so the layout doesn’t jump while loading.
Check your speed after compressing with Google’s free PageSpeed Insights.
Frequently asked questions
Are my images uploaded to a server?
No. Compression runs in your browser using its built-in image tools. Your photos never leave your device, which is why it works for private or client images too.
What is WebP and should I use it?
WebP is an image format made by Google that is usually noticeably smaller than JPG or PNG at similar visual quality. All modern browsers support it, and WordPress supports WebP uploads, so it is a good default for websites.
What quality setting should I use?
For photos on a website, 70 to 80% usually looks the same as the original to most people while saving a lot of space. Use a higher setting for images with fine text or detailed product shots.
What width should website images be?
Match the largest size the image is shown at. Full-width banners rarely need more than 1920px; blog and content images are often fine at 1200px or less. Uploading a 4000px phone photo for an 800px slot wastes data.
Can I compress iPhone HEIC photos?
Most browsers can’t open HEIC files. On iPhone, set Camera Formats to Most Compatible, or share or export the photo as JPG first, then compress it here.
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