Image Compressor
& Converter
Compress, convert, and resize — entirely in your browser.
No uploads. No sign-ups. Completely free.
Drop your images here
or
Browse filesImages never leave your browser
Free Online Image Compressor & Format Converter
Optimise your images for the web in seconds. Our free online image compressor lets you reduce the file size of PNG, JPEG, WebP, and GIF images directly in your browser — no software to install, no files uploaded to a server, and no account required. Whether you need to compress images for your website, shrink photos for email, or convert PNG to WebP for faster page loads, this tool does it all in one place.
100% Private & Secure
Your images never leave your device. All compression and conversion happens locally in your browser using client-side JavaScript — nothing is uploaded, stored, or shared.
Convert Between Formats
Easily convert PNG to JPEG, JPEG to WebP, WebP to PNG, and more. Choose the best format for your use case — WebP for web performance, PNG for transparency, JPEG for photos.
Batch Compress Multiple Images
Drop an entire folder of images and compress them all at once. Adjust quality, resize dimensions, and convert formats in a single batch — then download individually or all at once.
Resize & Optimise for Web
Set a maximum width or height to automatically scale images down during compression. Perfect for preparing images for websites, social media, or email newsletters without a separate editing tool.
Adjustable Quality Control
Fine-tune the balance between file size and image quality with a simple slider, or pick a preset — Small File, Balanced, or High Quality — to get the right result fast.
Completely Free, No Limits
No watermarks, no daily limits, no sign-up walls. Compress as many images as you need, as often as you need. The tool is free and always will be.
Who Is This Image Compressor For?
Web Developers & Designers
Reduce image payload for faster page load times and better Core Web Vitals scores. Convert assets to WebP and compress hero images, thumbnails, and icons.
Content Creators & Bloggers
Shrink photos and graphics before uploading to your CMS. Smaller images mean faster blog pages, lower hosting bandwidth costs, and a better reader experience.
E-Commerce & Online Stores
Optimise product images in bulk. Compressed, correctly sized images load faster on product pages — improving conversion rates and mobile shopping experience.
Email Marketers
Keep email file sizes under provider limits. Compress banner images, product shots, and graphics so your campaigns load instantly in every inbox.
Frequently Asked Questions
How does the online image compressor work?
Our image compressor uses advanced browser-based algorithms to reduce file size while preserving visual quality. Select a quality level, choose your output format, and download the optimised file — all without uploading anything to a server.
Is it safe to compress images here?
Yes. Every image is processed locally in your browser using JavaScript. Your files are never uploaded to any server, so your data stays completely private and secure.
What image formats are supported?
You can compress and convert PNG, JPEG, WebP, and GIF images. Convert between any of these formats — for example, convert PNG to WebP for smaller file sizes on the web.
Can I resize images while compressing?
Yes. Set a maximum width or height in the settings panel and the tool will scale your images down proportionally during compression. This is useful for preparing images for websites, emails, or social media.
How much can I reduce image file size?
Results vary depending on the original image and quality setting. Typically, JPEG images can be reduced by 40–80%. Converting PNG to WebP often produces 50–90% smaller files with minimal quality loss.
Can I compress multiple images at once?
Yes. Drag and drop or select multiple images and the tool will batch-compress them all with the same settings. Download each individually or use the Download All button.
What is the best format for web images?
WebP is currently the most efficient format for web images, offering superior compression over JPEG and PNG with comparable quality. JPEG remains a strong choice for photographs, while PNG is ideal for images requiring transparency.
Is there a file size or image limit?
There is no hard limit on the number of images. Since processing happens in your browser, performance depends on your device. We recommend batches of 20 or fewer images for the best experience.
