Image Compressor
Compress JPG, PNG, and WEBP images in seconds with adjustable quality controls. All processing is performed entirely in your browser using client-side canvas technology, ensuring zero server uploads, total privacy, and maximum speed.
Click to choose files or drag and drop
Supported types: image/jpeg, image/png, image/webp, .jpg, .jpeg, .png, .webp (Max: 50 MB)
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100% free, unlimited, and private in-browser processing
100% Client-Side Compression
When you select an image, FileKinetix decodes the image into an offscreen canvas element and re-encodes it using your selected quality setting. Because the browser's native codecs handle both decoding and encoding directly on your device, your images are never sent over the network or stored on an external server. You can compress multiple images simultaneously and download them individually or as a single ZIP archive.
Visual Comparison & Dynamic Size Estimation
Review the original and compressed file sizes instantly, alongside calculated savings percentages. Inspect the compressed output with a live preview before downloading to ensure your photos maintain crisp visual clarity while saving valuable disk space and bandwidth.
Lossy compression vs format optimization
JPEG and WEBP are lossy formats that benefit immediately from compression sliders. PNG images are natively lossless; re-encoding PNG through canvas removes redundant metadata while keeping original pixel data. For even greater space savings on PNG graphics, you can choose to convert them to WEBP directly within this tool while preserving transparency.
How to compress images online
- Drag and drop or select your JPG, PNG, or WEBP images into the upload box.
- Adjust the quality slider (e.g. 80% for high quality or 60% for balanced size) or pick a preset button.
- Select your preferred output format, or keep 'Original' to maintain the existing file format.
- Click Compress Images to process all files locally in your browser.
- Check the size comparison badges and download individual files or download everything as a ZIP file.
Frequently Asked Questions
Are my photos uploaded to any server?
No. FileKinetix processes all files 100% locally inside your web browser. No files, metadata, or image bytes are ever transmitted to any remote server or third-party service.
Which image formats are supported?
You can compress JPG/JPEG, PNG, and WEBP files. You can also convert between these formats during compression.
Will compression reduce the resolution (dimensions) of my images?
No, the Image Compressor preserves the exact original pixel dimensions (width and height) of your images unless you choose to resize them with our Image Resizer tool.
Can I compress multiple files at once?
Yes. You can select or drop multiple images at once. The tool processes them sequentially on your device and provides a 'Download all' ZIP button for easy saving.
What should I do if an output file is larger than the original?
If an image was already heavily compressed by another tool, applying a high quality re-compression (such as 90% or above) may increase file size slightly. In that case, lower the quality slider or retain the original file.
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