Free Image Compressor
Compress JPG, PNG, and WebP images online directly in your browser. Reduce image file size without uploading your photos to a server.
How to Compress Images Online
- Upload your image — Click the upload area or drag a JPG, PNG, WebP, or GIF file into the compressor.
- Choose an output format — Pick JPEG or WebP for the smallest photos, or PNG when you need lossless quality.
- Adjust the quality slider — Balance file size and image clarity. 70–80% quality usually looks great and saves a lot.
- Resize if needed — Set a maximum width to shrink large photos even further for web or email use.
- Click “Compress Image” — Then download your smaller, optimized image instantly. Nothing is uploaded to a server.
About the Free Online Image Compressor
ToolGenie's free image compressor helps you reduce image file size for websites, email attachments, social media, and faster page loads. It works with JPG, JPEG, PNG, WebP, and GIF images and is perfect for photographers, bloggers, developers, and anyone who needs smaller images without losing noticeable quality.
The entire compression process runs in your browser, so your photos stay on your device and are never uploaded to a server. This keeps your images private and makes compression fast, even for large files.
Use the quality slider and resize options to control the trade-off between file size and clarity. Lower quality and smaller dimensions produce smaller files, while higher settings preserve more detail — all with a live before-and-after size comparison. Need to crop first? Try the Image Resizer & Cropper, or combine photos into a PDF with Images to PDF.
Frequently Asked Questions (FAQ)
How do I compress an image online for free?
Upload a JPG, PNG, or WebP image, pick an output format, adjust the quality slider, and click Compress Image. Then download the smaller file. No account, watermark, or software installation is required.
Is this image compressor private and secure?
Yes. Compression happens entirely in your browser. ToolGenie does not upload your images to any server or store your files, so your photos stay completely private.
Which image formats can I compress?
You can compress JPG, JPEG, PNG, WebP, and GIF images. You can also convert between formats — for example, save a PNG as a smaller JPEG or WebP file to reduce size further.
Will compressing an image reduce its quality?
JPEG and WebP compression are lossy, so very low quality settings can soften details. At 70–80% quality most images look nearly identical to the original while being much smaller. PNG compression is lossless.
How can I reduce image file size to under a specific limit?
Lower the quality slider and reduce the maximum width to shrink the file. The tool shows the new file size instantly, so you can keep adjusting until the image is small enough for your upload limit (for example under 100 KB or 200 KB).
Do I need to install any software to compress photos?
No. The image compressor works in modern desktop and mobile browsers, so you can reduce image file size without installing an app, plugin, or browser extension.
Tips for Smaller Image Files
- Pick the right format: Use JPEG or WebP for photos and PNG for logos or transparency. Converting a photo PNG to WebP often shrinks it dramatically.
- Start at 70–80% quality: That range usually looks great and saves a lot of bytes compared with 95–100%.
- Resize for the web: Wide phone photos rarely need more than 1920px on the long edge for websites and social posts.
- Prefer WebP when supported: WebP often produces smaller files than JPEG at the same visual quality.
- Keep an original copy: Save a backup before replacing important images. Pair with JPG to PDF if you need a shareable document instead of a single image.