Image Compressor

With JPG and WebP at 80–90% quality, the difference is invisible to the human eye for photographic images. The compression removes subtle color variations and imperceptible frequency information that your brain fills in automatically. Use the before/after comparison slider on this page to verify for your specific image. For images with hard edges, text, or flat colors (logos, screenshots), use higher quality (90%+) to avoid visible block artifacts.

Lossy compression (JPG, WebP) achieves large file size reductions by permanently discarding some visual data. The image looks nearly identical but the discarded data cannot be recovered. Lossless compression (PNG, GIF, WebP lossless) preserves every pixel exactly but achieves smaller reductions. For photographs, lossy at 85% is ideal. For screenshots, diagrams, and images with text, lossless or high-quality lossy is better.

The industry standard sweet spot is 80–85% for JPG web images. This produces visually lossless results while reducing file size by 70–90%. For background images and thumbnails, 70–75% is acceptable. For hero images or product photos where quality matters most, use 88–92%. Google’s own WebP encoder defaults to 75–80%. Use our Quality vs Size quick buttons to preview each level on your specific image.

Yes, but with limitations. The browser’s Canvas API can re-encode PNG with standard compression, but it cannot perform deep palette quantization (color reduction) like TinyPNG’s server does. For maximum PNG size reduction, our Smart Format Suggestion will show you how much smaller the image would be as WebP — typically 40–80% smaller while preserving transparency. Converting to WebP is the best approach for web use.

Target File Size uses a binary search algorithm to automatically find the highest possible quality that keeps the output file under your chosen size limit. For example, if you need an image under 300 KB for an email attachment, just enter 300 and click Compress. The tool will try up to 10 quality levels (e.g., 50% → 75% → 62% → 68%) to find the optimal quality. You can watch the search log in real time. This unique feature is not available in TinyPNG, Squoosh, or any other free browser-based tool.

Absolutely not. This tool is 100% client-side. Your image is read from your device using the FileReader API, compressed entirely in your browser using the HTML5 Canvas API, and downloaded directly back to your device. The image bytes never leave your computer. There is no backend server, no cloud processing, no data retention, and no analytics on your image content. You can safely compress confidential, medical, legal, or personal images.

Use the For Platform mode and click the Instagram or WhatsApp preset. Instagram compresses everything to 1080px wide at around 800 KB. WhatsApp handles up to 1920px and about 2 MB. Our presets automatically apply the correct dimensions, quality level, and output format for each platform so you don’t have to guess. The result will be perfectly sized and optimized before you upload, preventing double-compression artifacts from the platform re-compressing an already-compressed image.

Switch to the Batch Mode tab and drop up to 20 images at once. Images are processed one at a time (sequentially) to avoid memory crashes on mobile devices, with a progress indicator for each file. When all images are done, a summary report shows the total space saved. Download all compressed images as a single ZIP file, or grab individual files from the results table.