Image Compressor
Compress JPG, PNG and WebP images in your browser — no upload to any server.
Drop image here or click to upload
JPG, PNG, WebP supported
About This Tool
The TulTek Image Compressor reduces file size using the browser's built-in Canvas API. Adjust the quality slider from 1 to 100 and see the compressed size instantly. Your images never leave your device — no server uploads, no privacy concerns.
Why Compress Images?
Large image files slow down websites, increase storage costs, and eat mobile data. A high-resolution photo straight from a camera can easily exceed 5 MB. Compressing it to 200–500 KB while retaining acceptable visual quality dramatically improves page load times and Core Web Vitals scores.
Google's PageSpeed Insights regularly flags unoptimized images as the single biggest performance opportunity. For e-commerce sites, each second of delay reduces conversions by roughly 7%. Optimizing images is the highest-ROI performance task for most websites.
TulTek's compressor uses the HTML5 Canvas API — the same technology browsers use internally — to re-encode images at your chosen quality level. JPEG and WebP benefit most from quality reduction; PNG compression is lossless and focuses on file structure optimization.
Because all processing happens in your browser, your images stay completely private. There is no upload, no cloud processing, and no storage of your files anywhere.
Frequently Asked Questions
Does the image get uploaded to a server?
No. All compression happens in your browser using the Canvas API. Your image never leaves your device.
What quality level should I use?
For web use, 70–85 is a good starting point for JPEG. It typically reduces file size by 60–80% with barely noticeable quality loss. For print, use 90+.
Why doesn't PNG compress as much as JPEG?
PNG is a lossless format, so quality percentage only affects metadata and minor structure — not pixel data. For maximum PNG compression, consider converting to JPEG or WebP instead.