Image Compressor & Resizer
Compress, resize, and convert images online - all in your browser
Image Compressor
Image Resizer
Preset Sizes
Image Converter
Bulk Processor
1000+ Canva Design Templates
Launch scroll-stopping content in minutes. Instagram, Stories, Reels, YouTube — all pre-designed and editable.
How to Use the Image Compressor
Drag and drop your images onto the upload area, or click to browse and select files from your device. The tool supports JPEG, PNG, WebP, BMP, and GIF formats. Multiple images can be processed simultaneously using the bulk processor tab.
Adjust the compression quality slider to control the balance between file size and image quality. The preview shows a before-and-after comparison so you can verify the visual quality meets your standards before downloading.
Download compressed images individually or as a batch ZIP file. The tool also provides resize options for popular dimensions like social media sizes, thumbnails, and web-optimized widths.
Why Use This Tool
Large image files slow down websites, consume mobile data, and exceed email attachment limits. Image compression reduces file sizes by 50-90% while maintaining visual quality that is indistinguishable to the human eye in most cases.
Unlike cloud-based compressors, this tool processes images entirely in your browser. Your photos, screenshots, and designs never leave your device — making it the safest option for sensitive or proprietary images.
Key Features
- Compress JPEG, PNG, WebP, BMP, and GIF images
- Adjustable quality slider with real-time file size preview
- Before-and-after visual comparison
- Bulk processing for multiple images simultaneously
- Built-in resize tool with popular dimension presets
- 100% client-side processing — images never leave your device
Frequently Asked Questions
How much can images be compressed without losing quality?
JPEG images can typically be compressed to 60-80% quality with no visible difference to the human eye. PNG files with many solid colors can often be reduced by 50-70%. The exact reduction depends on the image content, resolution, and original file optimization.
Is lossy or lossless compression better?
Lossy compression (JPEG) achieves much smaller file sizes by discarding some image data that is not perceptible to human vision. Lossless compression (PNG) preserves every pixel exactly but achieves smaller reductions. Use lossy for photographs and lossless for graphics, logos, and screenshots with text.
What image size should I use for websites?
For full-width website images, aim for 1200-1920 pixels wide at 72 DPI, with file sizes under 200KB. For thumbnails, 300-600 pixels wide under 50KB is ideal. These targets balance visual quality with fast page loading speeds.
Does compression affect image metadata?
Compression may strip EXIF metadata (camera settings, GPS location, date) from images. This is actually beneficial for privacy and reduces file size further. If you need to preserve metadata, check your export settings before downloading.