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Compress Image Online Free — Reduce JPG, PNG & WebP Size

Reduce image file size without losing quality. Choose format, adjust quality, download instantly.

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About Tool

Compress your images instantly without uploading them to any server. Choose your output format — JPEG, PNG, or WebP — adjust the quality level, and optionally resize large images before compression. Perfect for reducing file sizes for web pages, email attachments, and social media. Completely free, no watermarks, and your images stay on your device.

How to Compress Images Online

Reduce your image file sizes instantly — no uploads, no software, works in any browser.

  1. 1Upload your JPG, PNG, or WebP image using the upload area or drag and drop.
  2. 2Set the quality level (lower = smaller file). Choose an output format — WebP gives the best compression.
  3. 3Optionally enable 'Resize large images' and set a max dimension to further reduce file size.
  4. 4Click 'Compress Image', compare the original and compressed sizes, then download.

💡 Quality 75–85 gives the best balance between file size and visual quality for JPEG and WebP.

Frequently Asked Questions

Will compression reduce image quality?
Yes, but at higher quality settings (75–90) the difference is barely visible. JPEG and WebP use lossy compression; PNG is lossless and its file size reduction comes mainly from resizing.
What output formats are supported?
JPEG, PNG, and WebP. WebP typically achieves the best file size reduction at equivalent visual quality and is supported by all modern browsers.
Is there a file size limit?
There is no strict limit. However, very large images may take a moment since all processing happens locally in your browser.
Is my image uploaded to a server?
No. Compression is done entirely in your browser using the Canvas API. Your images never leave your device.
Why didn't the PNG file get smaller?
PNG is a lossless format — quality settings don't apply. To reduce a PNG's file size, enable 'Resize large images' or convert it to WebP for much better compression.

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