jpeg
A broadly compatible choice for photographs and email attachments. Lossy compression works best for images without transparency.
Fast, private image compression
Image Compressor
Compress JPG, PNG, WebP with MozJPEG, OxiPNG, libwebp — right in your browser.
Files stay in your browserWASM-powered processingBatch compression
Step 1
Add your images
Drag files here, browse your device, or paste an image from the clipboard.
Drop images here or click to browse
JPG, PNG, WebP, AVIF, GIF, BMP, ICO, TIFF — up to 50MB each
Step 2
Tune the output
Higher quality keeps more detail but creates a larger file.
Smaller fileBetter quality
Choose a target only when needed
Adjust quality first, then choose a format when you need a smaller web-friendly file.
Your images are processed locally and are never uploaded.
Keep working
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Formats & results
Compress JPG, PNG, WebP and AVIF images online
Use the format that matches the job. The compressor runs in your browser, supports batch processing, and lets you compare the original with the result before downloading.
png
Keeps transparency and crisp edges for screenshots, logos, and illustrations. Lower quality can reduce colors for a smaller file.
webp
A modern web format with strong quality-to-size performance for photos, product images, and websites.
avif
A next-generation format that can be very compact at good visual quality. Check your target app or browser support first.
How to compress an image
No account or upload is required. Pick files, choose a quality level, and download the optimized copies.
- 01
Select images
Drop one or more JPG, PNG, WebP, AVIF, GIF, BMP, ICO, or TIFF files, or paste an image directly.
- 02
Set quality and format
Use the quality slider to balance detail and file size. Keep the original format or export to JPEG, WebP, AVIF, or PNG.
- 03
Compare and download
Review the size difference, compare the visual result, then download one file or a ZIP of the batch.
Common image compression scenarios
A smaller image is easier to email, faster to load, and more practical to store. Here are a few useful starting points.
Email attachments
Compress large camera photos before sending them so the message stays within attachment limits and downloads faster.
Web pages and blogs
Use WebP or AVIF for modern websites to reduce page weight while keeping product photos and hero images sharp.
Social media uploads
Create lighter copies for posts, profiles, and thumbnails without changing the original files in your library.
Product catalogs
Batch-compress product images to speed up storefront pages and make asset handoffs easier for your team.
Private by design
Images are decoded and encoded locally in your browser with Web Workers and WASM codecs. They are not sent to a server, and the page does not need an account to process them. Downloaded output remains under your control.
FAQ
Image compressor FAQ
Are my images uploaded?
No. Processing happens in your browser, so the image bytes stay on your device during compression.
What quality should I use?
75% is a useful starting point for photos. Increase it when fine detail matters, or lower it when the smallest file is the priority.
Which format makes the smallest file?
WebP and AVIF are often smaller than JPEG at similar visual quality. JPEG is still the safest compatibility choice, while PNG is best when transparency or lossless edges matter.
Can PNG images be compressed?
Yes. PNG output can reduce the color palette for smaller files. For photographic PNGs, converting to WebP or JPEG usually saves more space.
Does it work on phones?
Yes, as long as the mobile browser supports the selected image format. For large batches, a desktop has more memory and CPU headroom.
How many files can I process?
You can add multiple images in one batch. Each input is limited to the size shown in the uploader; available device memory can affect very large batches.
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