Free Image Compressor & Optimizer — Reduce File Size Online
Compress JPEG and PNG images while preserving visual quality. Adjust compression level and see a live preview comparison — all in your browser.
Features
Quality Control
A slider lets you dial in exactly the right balance between file size and visual quality.
Side-by-Side Preview
Compare the original and compressed image before downloading so you know exactly what you're getting.
Private & Local
Compression happens entirely in your browser using the Canvas API. No files are ever uploaded.
How It Works
Click or drag a JPEG or PNG image onto the tool.
Move the quality slider and watch the file size estimate update in real time.
See both the original and compressed version side by side to confirm quality.
Click download to save the compressed image at your chosen quality.
Frequently Asked Questions
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