About the Image Compressor
Shrink image file sizes right in your browser using the HTML5 Canvas API. Adjust quality with a live preview, see before/after sizes and savings percentage, and download the result — your photo never touches a server.
Because compression is 100% local, there are no file-size limits, no queues, and complete privacy for personal photos and confidential screenshots.
How to use the Image Compressor
- Drop an image or click to select one (JPEG, PNG or WebP).
- Adjust the quality slider — the estimated new size updates live.
- Optionally convert format (e.g. PNG → WebP for bigger savings).
- Click "Download" to save the compressed image.
Common uses
Making images small enough for email
Speeding up website load times
Meeting upload size limits on forms
Compressing screenshots for documentation
Frequently asked questions
Are my images uploaded to your server?
Never. Compression happens entirely in your browser via the Canvas API — the image never leaves your device.
Which format compresses smallest?
WebP usually gives the smallest files at equal quality. Converting PNG photos to WebP or JPEG often saves 60–90%.
Is there a file size limit?
No hard limit — because processing is local, you are only limited by your device's memory.
Does compression reduce quality?
Lossy compression trades some detail for size. The live preview lets you find the sweet spot — 75–85% quality is usually visually identical.
Related tools
Image Resizer
Resize images to exact pixel dimensions or percentages, privately.
Image ToolsQR Code Generator
Create high-resolution QR codes for URLs, WiFi, text and contact info.
Image ToolsColor Picker
Pick colors and get HEX, RGB and HSL values, shades, tints and palettes.
Image ToolsImage to Base64
Convert images to Base64 data URLs for embedding in HTML, CSS or JSON.
Image Tools