Image Compressor
Make your images smaller so they load faster on the web, take up less storage, and are easier to share. Upload a JPG, PNG, or WebP, pick a quality level, and download the compressed result — no signup, no upload to any server.
Short answer
Compression runs entirely in your browser using HTML Canvas. No images are uploaded to any server. JPEG and WebP support adjustable quality; PNG images are re-encoded with lossless compression and transparency preserved.
When to compress your images
Compression is most useful when images are large and need to be smaller without losing too much quality. Website photos, social media posts, and email attachments are the most common cases where a smaller file makes a real difference.
Not every image needs compression. If a file is already small, compressing it further may not be worth the effort. The tool shows you the result so you can decide whether the smaller size is worth any visible trade-off.
| Use case | Best format & quality | Why |
|---|---|---|
| Photos for social media | JPG, 70–80% quality | Smallest file, widely supported |
| Logos and graphics with transparency | PNG | Lossless, keeps edges sharp |
| Web images where size matters most | WebP, 75–85% quality | Smallest file at the same quality |
| Screenshots and text-heavy images | PNG | Keeps text crisp and readable |
| Email attachments | JPG, 80% quality | Small enough to send, still looks good |
How to get the best results
- Start with 80% quality for most photos — it is a good balance between file size and visual quality.
- Use PNG for images that need transparency or sharp edges, like logos and icons.
- If you are compressing for the web, try WebP — it gives the smallest files at the same quality level.
- Check the compressed image at full size before you rely on it, especially for images with fine details.
How to compress an image
Upload your image
Open the Image Compressor and drag in an image or click to upload. JPG, PNG, and WebP are all supported. The file stays on your device.
Set the quality level
Use the quality slider to pick how much compression you want. Lower values reduce file size more but can soften details.
Pick the output format
Keep the same format or convert to JPG, PNG, or WebP depending on where you plan to use the image.
Download the compressed image
Compare the before and after size, then download the smaller version if it looks good.
When to skip compression
If the image is already small or you need every pixel to stay exactly as it is — like for print or archival — compression may not be worth it. For most screen uses, a slight quality reduction is invisible and saves a lot of file size.
FAQ
What image formats does the compressor support?
The tool supports JPG, PNG, and WebP. Upload any of these formats and download the compressed version in the same format or convert to another format if needed.
Does compressing an image reduce its quality?
Compression reduces file size, which can slightly soften fine details. For most web and social media uses the difference is invisible. You control the quality level so you can find the sweet spot between size and sharpness.
What is the best format for compressing images for the web?
JPG is the most widely supported format for photos on the web. PNG is better when you need transparent backgrounds or lossless quality. WebP gives the smallest files at the same quality but is not supported everywhere yet.
How much smaller can compressed images get?
It depends on the original format and quality. A high-quality JPG can often shrink 50–80% with little visible change. PNG files can shrink a lot when converted to JPG or WebP. The tool shows the before and after size so you can decide.
Is image compression free and private?
Yes. It is a free browser tool with no signup. Your images are processed on your device and nothing is uploaded to a server.
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