Image Compressor
Reduce image file size without losing quality
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About Image Compressor
Image Compressor reduces the file size of images by re-encoding them at a lower quality level. All compression happens locally in the browser using the Canvas API. Your images are never sent to a server, which is important for private or sensitive photos.
You can adjust the quality slider to find the best balance between file size and visual quality. For most use cases, 70–85% quality is indistinguishable from the original at a fraction of the size. The tool shows you the before and after file sizes so you can make an informed choice.
Note that PNG is a lossless format. Converting a PNG through this tool exports it as a JPEG to achieve compression. If you need a lossless compressed PNG, a specialised tool like pngquant produces better results.
Image Compressor Knowledge Base
What It Is Used For
Reduce image file size without losing quality. People usually use this tool when they need fast, repeatable output without opening a heavy desktop app or sharing private data with a third-party service.
How To Use It
Paste your input, adjust the visible options, run the action, then copy or download the result. For keyboard-heavy workflows, supported tools also respond to Ctrl+Enter or Cmd+Enter.
Search Topics Covered
compress image online, reduce image size, image optimizer, shrink image. This page is written to answer those common search intents with practical browser-based examples and privacy-first processing.
Frequently Asked Questions
A quality of 75-80% typically reduces JPEG file size by 40-70% with little visible difference.
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