Image Compressor
Compress JPG, PNG, and WebP images without losing quality. Free, no signup, processed in your browser.
Choose your files
Drop images to compress
or browse files from your device
JPG, PNG, WebP, GIF · Up to 50 images
or press Ctrl+V to paste from clipboard
Compressing...
Compression Complete!
What Is an Image Compressor?
An Image Compressor reduces the file size of digital images by re-encoding them at a lower quality setting. Smaller image files load faster on websites, take up less storage space, and are easier to email or share. The Image Compressor supports JPG, PNG, WebP, and GIF formats and lets you fine-tune the quality-versus-size trade-off.
When Should You Compress Images?
- Improve website loading speed — Compressed images load faster, improving page speed and user experience on your website.
- Save storage space — Reduce the file size of your photo library, design assets, or archived images.
- Email images — Most email services have attachment size limits. Compress images before attaching.
- Prepare images for social media — Compress images before uploading to social platforms for faster uploads.
Benefits of Browser-Based Image Compression
- No Uploads, Complete Privacy — All compression happens in your browser using the Canvas API and Web Workers. Your images never leave your device.
- Batch Compress Up to 50 Images — Upload and compress multiple images at once, then download them all as a ZIP archive.
- Adjustable Quality — Use the quality slider from 10% to 100% to find the perfect balance between file size and visual quality.
- Output Format Conversion — Compress and convert to a different format (JPG, PNG, WebP) in one step.
How It Works
Upload Images
Drag and drop or click to browse. Supports JPG, PNG, WebP, GIF. Batch compress up to 50 images.
Set Quality
Drag the quality slider to balance file size vs. image quality. 80% is recommended for most uses.
Download
Click Compress. Download all compressed images as a ZIP file instantly. Nothing is uploaded.
PNG to JPG
Convert PNG images to JPG format with quality controls
JPG to PNG
Convert JPG images to lossless PNG format
Frequently Asked Questions
Upload your image, set your desired quality level using the slider (80% is recommended), and click Compress. Your image is re-encoded at the selected quality directly in your browser — no uploads, no signup, no limits.
It depends on the quality setting. At 80% quality, file size is significantly reduced with virtually no visible difference. At 60% or lower, some compression artifacts may become noticeable, especially in gradients or fine details. We recommend 80% for the best balance of size and quality.
You can compress JPG, PNG, WebP, and GIF images. You can also choose the output format — keep the original format or convert to JPG, PNG, or WebP during compression.
Yes. Upload up to 50 images at once and compress them all in one click. Each image is processed individually at your chosen quality setting, and you can download them all as a single ZIP archive.
No. All compression happens in your browser using the Canvas API. Your images never leave your device. We never upload, store, or access your files.
80% is the sweet spot for most uses — significant file size reduction with no visible quality loss. For web use, 70% works well. For print or archival purposes, use 90% or higher.
Yes. GoToolify works on any device with a modern browser. The interface adapts to mobile screens, and since all processing happens locally, you get the same performance on your phone as on your desktop.
There is no fixed file size limit. Since everything runs in your browser, the practical limit depends on your device's available memory. Most devices can handle images up to 50 MB without issue.