Reduce image file size without sacrificing quality. Works entirely in your browser.
Drop an image here, or click to browse
JPG, PNG, WebP · Ctrl+V to paste
🔒 Your images never leave your device — all processing happens in your browser.
This free image compressor reduces the file size of JPG, PNG, and WebP images directly in your browser — no file ever leaves your device. Use the quality slider to dial in the right balance between visual fidelity and file size. A setting of 75–85% typically cuts file weight by 60–80% while remaining visually identical to the original, making it the fastest way to prepare images for web pages, email attachments, or social uploads.
Upload your image and adjust the quality slider — a real-time size estimate updates as you move it, so you can see the trade-off before committing. When you click Compress, the tool re-encodes your image using the browser's Canvas API at the selected quality level. A before-and-after slider lets you compare the original and compressed versions side by side before downloading.
Images are typically the largest assets on a webpage. Compressing hero images, product photos, and blog thumbnails directly improves page load speed, reduces bounce rate, and boosts Core Web Vitals scores — all of which affect SEO rankings.
Most email clients impose attachment size limits of 10–25 MB. Compressing photos before attaching them avoids delivery failures and reduces inbox storage usage for both sender and recipient.
Platforms like Instagram, Twitter, and LinkedIn re-compress uploaded images using their own algorithms, which can introduce visible artefacts. Pre-compressing at a controlled quality gives you a better-looking result than letting the platform decide.
For most photos, 75–85% delivers a 60–80% reduction in file size with no visible quality difference. Use 85–95% for print or professional work. Go below 70% only when file size is the absolute priority.
JPG and WebP use lossy compression, so some quality is discarded — the slider controls how much. PNG uses lossless compression so quality is fully preserved regardless of the setting.
The compressor supports JPG (JPEG), PNG, and WebP. The file is automatically detected and compressed in the same format as the original.
No. Because all processing happens locally in your browser, there are no server-side upload limits. The only practical limit is your device's available RAM.
PNG uses lossless compression, so the quality slider has minimal impact on PNG file size. To significantly reduce a PNG's size, convert it to WebP first using the Format Converter, then download.
Lossy compression (JPG, WebP) permanently discards some image data to achieve smaller files. Lossless compression (PNG) reorganises the data without discarding anything — output is pixel-identical to input but files are larger.
