Image Compressor

Compress JPG, PNG, or WebP images in your browser. No upload required.

Drop image here or click to choose

Quality: 0.8

Max Width: 1920 px

Format: Auto WebP JPEG PNG

Original Size: -

Compressed Size: -

No image loaded.

If your blog loads slowly, large images are usually the reason. This free Image Compressor lets you reduce file size directly in the browser—no uploads, no privacy issues, and no waiting. It supports JPG, PNG, and WebP, offers drag-and-drop, and gives you a clear before/after size comparison so you can pick the best balance of quality and speed.

Why compress images

Faster pages help users and search engines. Smaller images improve Core Web Vitals like Largest Contentful Paint (LCP) and Interaction to Next Paint (INP). That means better user experience and a stronger chance to rank in Google. With this tool, you can cut image weight by 50–90% while keeping visual quality high.

Key features

• Client-side compression: Everything happens on your device. Images never leave the browser.
• Quality control: Use the slider to fine-tune quality. See the final size instantly.
• Smart resizing: Set a Max Width to scale down huge photos (for example, from 4000 px to 1920 px) to fit your blog layout.
• Modern formats: Auto mode selects WebP or JPEG for the best results. You can also choose PNG when you need transparency.
• Clean, mobile-friendly UI: Works smoothly on phones and desktops. Drag and drop is supported.
• One-click download: Save the compressed file with a clear “-compressed” name.

How it works

When you upload an image, the tool decodes it in your browser and draws it onto an HTML5 canvas. If you set a smaller max width, it resizes the pixels with high-quality smoothing. Then it exports the result using canvas.toBlob() at the chosen quality level and format (WebP/JPEG/PNG). The file size depends on three factors: dimensions, quality, and format. WebP usually gives the smallest output for photos. PNG is best for logos or images that need transparency. The preview updates after each change, so you can compare sizes and pick the sweet spot.

Best settings for blogs

• Hero images: 1600–1920 px width, quality 0.7–0.82, WebP or JPEG.
• In-content images: 1200–1400 px width, quality 0.7–0.8.
• Logos/graphics with transparency: Keep PNG or export as WebP if transparency is supported in your theme.
• Thumbnails: 600–800 px width, quality 0.6–0.75.

Always check the preview on mobile and desktop to ensure text or UI details remain sharp.

How to use this tool on your Blogger site

1. Open your Blogger Page or Post in the HTML editor.
2. Paste the complete code of the Image Compressor.
3. Publish the page and bookmark it for quick internal use, or make it public as a free utility for your readers.
4. Before uploading images to posts, run them through the tool to cut size and improve load speed.

Privacy and compliance

Because compression is fully client-side, no files are stored or transmitted. This helps with user trust and aligns with Google’s guidelines for safe, user-first experiences.