This image compressor makes JPG, PNG and WebP files smaller so they load faster on websites, fit into email attachments and upload quickly to forms and social apps. Pick a quality level, optionally switch the output to WebP or JPG and cap the width, and you get a lighter file that still looks the same at normal viewing size.
You can drop dozens of photos at once. Each file shows its size before and after and the percentage saved, and you can download them one by one or all together as a ZIP. The work is done by your own browser, so your pictures are never sent to a server and nothing is stored after you close the tab.
How to use the Compress Image tool
- Click Choose files or drag your images onto the box. You can also paste a screenshot with Ctrl+V.
- Move the Quality slider. 75 is a good balance; lower values give smaller files.
- Choose the output format: keep the original, or convert to JPG or WebP for the biggest savings.
- Optionally set a Max width so oversized camera photos are scaled down at the same time.
- Check the new sizes and download each image, or use Download all (ZIP).
Why use ToolOrca Compress Image
- Batch compress many images at once
- Quality slider from 10 to 100
- Convert to WebP or JPG while compressing
- Optional max width to shrink huge photos
- Before and after size with % saved
- Runs on your device, no uploads
Which quality setting should I use?
For photos on a website or blog, a quality between 70 and 80 is usually impossible to tell apart from the original but often cuts the file size by half or more. Use 85–90 for portfolio images or prints, and 50–60 when the file size matters more than fine detail, for example thumbnails or chat messages.
The biggest saving often comes from the pixel size rather than the quality. A 12-megapixel phone photo is about 4000 px wide, while most screens show images at 1920 px or less. Setting Max width to 1920 or 1280 can reduce the file to a fraction of its size with no visible loss on screen.
Why PNG files barely shrink
PNG is a lossless format: it keeps every pixel exactly, so re-saving a PNG cannot throw detail away to save space. If your PNG is a photo, convert it to WebP (keeps transparency) or JPG (no transparency) and it will usually become many times smaller. Keep PNG for logos, icons and screenshots with sharp text. If a compressed result would end up larger than your original, the tool keeps the original file instead.
Frequently asked questions
Does compressing an image reduce its quality?
JPG and WebP compression is lossy, so some detail is removed, but at quality 70–85 the difference is very hard to see. You can compare the sizes and pick a higher quality if you need more detail.
Are my images uploaded to a server?
No. The compression runs inside your browser using the HTML canvas. Your photos stay on your computer or phone the whole time.
How many images can I compress at once?
There is no fixed limit. You can add many files in one go; very large batches simply take a little longer because your own device does the work.
What is the best format for small file size?
WebP usually gives the smallest files at the same visual quality and supports transparency. JPG is the most widely accepted format for forms and older software.
Can I compress an image to an exact size like 100 KB?
Yes. Use the Compress Image to KB tool, which finds the quality that lands just under the size you type.