Drag the quality slider and watch the file size drop in real time. Great for shrinking photos before emailing or uploading to the web.
All processing runs locally in your browser. Your data is not uploaded to any server. 100% Local
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Upload an image to compress it
How to Use Image Compressor
Upload an image โ drag, click or paste a JPG, PNG or WebP.
Choose the output format โ JPG for photos, WebP for the smallest files, PNG for graphics with transparency (no quality loss).
Adjust the quality slider โ the canvas and file size update instantly. Aim for the lowest quality that still looks acceptable to you.
Optionally resize โ check "Scale down" and pick a maximum width; large photos often shrink a lot before compression even kicks in.
Download the compressed file.
Choosing a quality level
As a rule of thumb: 90โ100 is nearly indistinguishable from the original; 70โ85 is the sweet spot for web photos; 50โ65 shows visible artifacts but is much smaller; below 40 you will see clear blockiness. For screenshots and graphics with flat color, PNG often beats JPG at any quality setting.
Features
Real-time quality preview with live file-size readout.
Output to JPG, WebP or PNG.
Optional max-width resize before compression.
Shows original size, compressed size and percentage saved.
All processing runs locally in your browser. Your data is not uploaded to any server.