Image Compressor
Compress images online for free while maintaining quality. Everything runs in your browser without uploading any data.
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How to Use
1
Upload Image
Drag and drop your image into the designated area, or click to browse files from your device. Supports JPG, PNG, WebP, GIF, BMP.
2
Adjust Settings
Set the quality level manually or choose a preset, with options to change the output format and resize dimensions.
3
Download Result
Review the before/after size comparison, then download your compressed image with a single click.
Upload Image
Drag and drop your image here
or
Supports: JPG, PNG, WebP, GIF, BMP
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About This Tool
What is the Image Compressor?
The Image Compressor is a free tool that runs entirely in your browser to reduce image file sizes while maintaining the highest possible quality. No image is uploaded to any external server, ensuring complete privacy of your data.
How does it work?
The tool uses the browser's Canvas API to re-encode the image at a specified quality level. You can manually control the quality or choose a preset, with options to resize and change the output format.
Usage Tips
- 85% quality provides an ideal balance between size and quality for most images
- WebP format offers better compression than JPG at the same quality
- Use PNG for images with text or sharp graphics
- Resizing significantly reduces file size
Important Notes
- File size may increase with high quality: If the original image was saved at low quality (e.g. 70%), re-encoding it at 95% will produce a larger file. This is normal behavior.
- The tool re-encodes the image: The original image is decoded to pixels then re-encoded with your settings, which may lose the original file optimizations.
- For effective reduction: Use a quality level lower than the original. The "Balanced" (85%) or "Small Size" (70%) presets work best for most cases.
- "Best Quality" (95%) is useful when: Converting formats (e.g. PNG → WebP) or only resizing dimensions.
Features of this Tool
Runs entirely in the browser without any image uploads, full quality control, multiple output formats, resize options, and instant preview with savings statistics.
Tip: For best results, try different quality levels and compare size vs visual quality before downloading.
References
Frequently Asked Questions
No. All image compression happens locally in your browser using the Canvas API. No image is uploaded to any server.
You have full control over quality. You can preview the result and adjust the quality level to find the perfect balance between file size and visual quality.
The tool supports JPG, PNG, WebP, GIF, BMP input. You can export as JPG, PNG, or WebP.
Yes, the Image Compressor is completely free and requires no registration.
This is normal and happens when the original image was saved at a lower quality and you choose a higher quality setting. The tool re-encodes the image, so requesting higher quality than the original will produce a larger file. Solution: Use lower quality like "Balanced" (85%) or "Small Size" (70%), or resize the dimensions or convert to WebP.
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