Finding the right image compressor can make a huge difference for your website speed and storage. We tested the top online image compression tools and ranked them by quality, speed, and features.
Compress images online for free — reduce JPG, PNG, and WebP file size by up to 80% with minimal quality loss. Smart lossy/lossless optimization, batch processing, before/after preview, all in your browser.
All-in-one batch image processor — compress, resize, convert format, crop, rotate, add watermarks, and rename multiple images at once. All in your browser, no uploads, no file limits.
Convert image formats online for free — JPG, PNG, WebP, AVIF, GIF, SVG, BMP, TIFF, ICO and more. High-quality conversion with batch support, custom quality settings, 100% browser-based processing.
Resize images online for free. Change dimensions by pixels or percentage, maintain aspect ratio, crop to exact size. Supports JPG, PNG, WebP, GIF. Multiple presets for social media and web. Batch processing available.
Add text or image watermarks to protect your images. Free online tool for branding photos directly in your browser. Supports image, watermark.
Generate favicon icons from images in multiple sizes. Free online favicon generator for websites and web apps. Supports favicon, icon.
Crop images to specified dimensions and aspect ratios. Free online image cropper for thumbnails and social media. Supports image, crop.
Rotate images to any angle including 90, 180, and 270 degrees. Free online image rotator for fixing photo orientation. Supports image, rotate.
Apply blur effects to images for privacy or artistic purposes. Free online image blur tool for faces and backgrounds in your browser.
Generate QR codes online for free. Create custom QR codes for URLs, text, WiFi, email, vCard, SMS, and more. Customize colors, add logos, adjust error correction, download as PNG or SVG.
Yes — every compressor listed is free to use with no limit on the number of images you process.
Most tools offer adjustable quality. At 70–80% quality, images look nearly identical while shrinking 50–80% in file size.
No. Compression runs locally in your browser using Canvas and WebAssembly — your images never leave your device.
When choosing a tool, consider your specific needs: file size limits, processing speed, privacy guarantees, and batch processing capabilities. All recommended tools have been tested by our team.