To compress an image, upload it to DIT ToolsKit's Image Compressor, adjust the quality slider (and optionally set a maximum width and height), then click Compress. You get a smaller JPEG with the size reduction shown instantly.
What is Image Compressor?
Image Compressor shrinks a photo or graphic's file size by adjusting its JPEG quality and, optionally, its dimensions — useful whenever a file is too large to upload, email, or load quickly on a website.
How to use Image Compressor
- Upload the image you want to shrink.
- Adjust the quality slider — lower quality means a smaller file.
- Optionally turn on "Also limit dimensions" and set a max width and height.
- Click "Compress image" and download the result.
Benefits of Image Compressor
- See the before-and-after file size immediately
- Control both quality and dimensions in one tool
- Preview the compressed image before downloading
- Processed locally — your photo never leaves your device
Common use cases
- Getting a photo under a website's upload size limit
- Speeding up a page by shrinking images before uploading
- Reducing storage used by a large photo library
- Preparing a smaller image to attach to an email
Supported formats
- PNG, JPEG, WEBP in
- JPEG out
Privacy & security
Image Compressor processes your file directly in your browser using client-side code. Your file is never uploaded to DIT ToolsKit's servers, so it stays on your device throughout the entire process.
Limitations
- The compressed output is saved as JPEG, so transparency in a PNG source is not preserved.
- Very large images can take longer to process since compression runs entirely in your browser rather than on a server.
Frequently asked questions
What image formats can I compress?
You can upload PNG, JPEG, WEBP and most common image formats — the compressed output is saved as JPEG.
Will compressing make my image blurry?
Lowering the quality slider does reduce fine detail — for most photos, 60-80% quality keeps them looking sharp while cutting file size significantly.
Can I resize and compress at the same time?
Yes — turn on the dimension limit option to shrink the image's width and height alongside its quality in a single step.
Can I compress an image without losing quality?
You control the trade-off with the quality slider — keeping it around 80-90% shrinks the file with very little visible quality loss, while lower settings save more space at the cost of some detail.