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Image Compressor – Reduce Image Size Online Free | CuriousAssistant

🖼️ Image Compressor

Reduce image file size without losing quality. Supports JPG, PNG, WebP & more. All processing happens in your browser — your images never leave your device.

Drop your image here or click to browse

Supports JPG, PNG, WebP, GIF, BMP, TIFF — Max 50 MB

📄 - 📦 - 📐 - 🖼️ -
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Original Size
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Compressed Size
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Size Reduction
⚙️ Compression Settings
80%
Lower = smaller file, higher = better quality
Generate Multiple Options
📐 Resize & Resolution
px
px
Leave empty to keep original dimensions
100%
Maintain Aspect Ratio
Smart Fix Under 500 KB
Automatically finds best quality to fit under 500 KB

✅ Compression Complete

Your image has been compressed successfully

⬇️ 0% smaller
Original
Original image preview
Size: - Dimensions: -
Compressed
Compressed image preview
Size: - Dimensions: -

Related Tools

Why Use This Image Compressor?

This free online image compressor lets you reduce the file size of JPG, PNG, WebP, GIF, and BMP images in seconds — with no upload required. Everything runs locally in your browser using the HTML5 Canvas API, so your photos and graphics stay completely private.

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100% Private Your images are never uploaded to any server. All compression happens on your own device.
Fast Compression Get results instantly using your browser's built-in graphics engine — no waiting for server processing.
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Target File Size Need an image under 200 KB? Set a target and the tool automatically finds the best quality.
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Resize & Scale Resize by exact pixels or percentage while maintaining the original aspect ratio.
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Format Conversion Convert JPG to WebP, PNG to JPEG, or any supported format for better web performance.
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Multiple Outputs Generate five compression variants at once and pick the one that best fits your needs.

How to Compress an Image

Reducing your image file size with this tool takes just a few steps:

1. Upload Your Image

Click the upload area or drag and drop any JPG, PNG, or WebP file (up to 50 MB). Your image loads instantly without any upload to a server.

2. Choose Your Settings

Adjust the quality slider to balance file size and visual quality. You can also set a target file size in KB or MB, resize the image dimensions, or pick a different output format like WebP for better web compression.

3. Compress & Download

Click "Compress Image" and your file is processed in milliseconds. Download the compressed version directly — no sign-up or email required.

Frequently Asked Questions

Is this image compressor completely free?

Yes. There are no fees, no accounts, no watermarks, and no daily limits. You can compress as many images as you like at no cost.

Are my images safe? Is anything uploaded?

Your images never leave your device. The tool uses the browser's Canvas API to process everything locally. No data is sent to any server.

What image formats are supported?

You can compress JPG (JPEG), PNG, WebP, GIF, BMP, and TIFF images. Output can be saved as JPEG, PNG, or WebP.

How much can I reduce image file size?

It depends on the original image and chosen quality. Typical savings range from 30% to 90%. WebP format generally produces the smallest files.

Can I compress an image to a specific file size like 200 KB?

Yes. Use the "Target File Size" presets (100 KB, 200 KB, 500 KB, 1 MB) or type a custom value. The tool automatically finds the highest quality that fits within your target.

What is the "Smart Fix Under 500 KB" option?

This mode automatically reduces quality and dimensions as needed to get your image under 500 KB — useful for email attachments or upload forms with file size limits.

Does compression affect image quality visibly?

At quality settings of 70–85%, most people cannot see a visible difference compared to the original. The side-by-side comparison lets you judge for yourself before downloading.

Compressing your image…