Compress Your Image
Upload an image and choose your target size. Everything stays in your browser.
No uploads. No servers. 100% private browser compression.
By Vizo ToolLast updated July 20265 min read
Compress Image Online — Free & Private
Vizo Tool's image compressor shrinks JPG, PNG, WEBP, AVIF, and HEIC photos right in your browser — no uploads, no servers, no watermarks. Just pick a target size like 50 KB, 100 KB, or 200 KB, and download a smaller file in seconds.
Because everything runs locally on your device, your images never leave your computer. It's the fastest, safest way to reduce file size for email, websites, or app uploads.
Why Use Compress?
100% Private
Files are processed in your browser and never uploaded to a server.
Exact Target Sizes
Compress to 50 KB, 100 KB, 200 KB, or any custom size you need.
No Quality Sliders Needed
The smart algorithm finds the best balance of quality and size automatically.
Free & Unlimited
No sign-ups, no watermarks, no daily limits — compress as much as you want.
Features
Target Size Presets
One-click presets for the most common limits: 50 KB, 100 KB, and 200 KB.
Custom Target Size
Enter any value from 1 KB upwards for full control over the output size.
Multiple Formats
Works with JPG, PNG, WEBP, AVIF, and HEIC (iPhone) images.
Live Progress & Preview
Watch compression progress in real time and preview the result side by side.
How to Compress an Image
Reduce any image to your target size in three simple steps.
Upload your image
Drag and drop, click to browse, or paste an image from your clipboard.
Choose a target size
Pick 50 KB, 100 KB, 200 KB, or enter a custom size in kilobytes.
Download the result
Your compressed image is ready instantly — download it with one click.
Frequently Asked Questions
Got questions? We've got answers.
How do I compress an image online?▼
Upload your image, choose a target size (50 KB, 100 KB, 200 KB, or custom), and download the compressed result. Everything happens instantly in your browser.
Is Vizo Tool free?▼
Yes, it's completely free with no sign-ups, no watermarks, and no usage limits.
Are my images uploaded to a server?▼
No. All processing happens locally in your browser using the Canvas API — your images never leave your device.
Can I compress an image to exactly 50 KB?▼
Yes. Choose the 50 KB preset or enter any custom target size, and the algorithm adjusts quality to get as close as possible.
What image formats are supported?▼
JPG, JPEG, PNG, WEBP, AVIF, and HEIC/HEIF (iPhone) files are all supported.
Will I lose image quality?▼
Compression reduces file size by optimizing encoding. The tool targets a precise size while preserving the best visual quality possible for that size.
Is there a file size limit?▼
There's no artificial limit, but very large images (over 50 MB) may take a moment to process since everything runs locally.
Does it work on mobile?▼
Yes, the tool is fully responsive and works perfectly on desktop, tablet, and mobile browsers.
Why is my image not getting smaller?▼
If the target size is close to or larger than the original, the output may stay similar in size. Try a smaller target or a JPEG output.
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