Image Compressor - Compress JPG, PNG & WebP Online
Shrink image file sizes significantly while maintaining sharp visual quality for faster websites and easy sharing.
How to use Image Compressor in 3 simple steps
Upload Photos
Drag and drop or browse one or several JPG, PNG, or WebP images.
Set Target or Quality
Pick an exact maximum size in KB, or switch to the quality slider for manual control.
Download Optimized
Download images individually or grab the entire batch packaged neatly in a ZIP file.
Something not working?
Found a bug in Image Compressor or have an idea that would make it better? Email me directly and I'll take a look.
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Next-Generation Browser-Based Image Optimization
Modern smartphone cameras and digital DSLRs produce massive image files frequently exceeding 10MB each. When uploading photos to websites, blogs, e-commerce stores, or email attachments, huge files cause sluggish page loads and bounce rates.
Toolnova Image Compressor uses modern Canvas and browser compression APIs to eliminate redundant metadata and optimize color tables directly on your CPU. This results in file size reductions of 60% to 90% with imperceptible differences to the human eye.
Because processing takes place locally inside your browser, there are no artificial file count restrictions, no daily quotas, and no privacy concerns regarding personal photos.
Key features & capabilities
Frequently asked questions about Image Compressor
Common questions about usage, privacy, limits, and browser compatibility.
How much smaller will my images be after compression?
Most photos shrink by roughly 60% to 90% once redundant data is stripped out, though the exact result depends on the original file and the quality level you pick. The tool shows live before-and-after byte counts, so you can see the saving before you download anything.
Can I compress an image to an exact file size in KB?
The compressor includes a target-size mode where you enter a maximum in kilobytes, such as 20 KB, 50 KB, or 100 KB, or type a custom value. It then adjusts the output to meet that ceiling, which helps when a job portal or application form rejects files above a fixed limit.
What quality setting should I use for photos on a website?
A quality setting between 70% and 80% usually keeps photos visually identical while removing most of the file weight. Go lower only when load speed matters more than fine detail, such as thumbnails or background images. The slider runs from 10% to 100%, so you can compare a few outputs and choose for yourself.
Can I compress multiple images at once?
You can add several JPG, PNG, or WebP files in one go and compress them together in the browser. When the batch finishes, download each optimized image separately or grab the whole set as a single ZIP archive.
Are my photos uploaded to a server when I compress them?
Compression runs entirely inside your browser using Canvas and local processing, so your images never leave your device. There is no sign-up, no daily quota, and no watermark stamped on the optimized files.
Does compressing an image change its pixel dimensions?
The compressor keeps the original width and height and only reduces how much data is stored per pixel. If you need a smaller canvas, such as for a banner or avatar, resize the image first and then run it through the compressor.