Image Compressor & Converter

Free online image converter & compressor. Convert your images to WebP, JPG, or PNG. Resize and compress locally – no upload, private and fast.

Original Image Preview:

Uploaded image preview
PNG ignores quality slider

How to Use the Image Converter

  1. Upload your image – Click "Select an Image" and choose a file from your device (JPG, PNG, or WebP).
  2. Preview instantly – See your original image right inside the tool before making changes.
  3. Choose output format – Select WebP (recommended for web), JPEG, or PNG from the dropdown.
  4. Adjust quality & dimensions – Drag the quality slider (10–100%) for WebP/JPEG and optionally set new width/height in pixels.
  5. Convert & download – Hit the button and your converted, resized image saves directly to your device – no waiting, no server upload.

💡 All processing happens locally in your browser for maximum speed and privacy.

Frequently Asked Questions

How do I convert an image to WebP, JPG, or PNG?

Upload your image, choose the desired output format (WebP, JPEG, or PNG), adjust quality and dimensions if needed, then click 'Convert & Download'. Everything happens locally in your browser.

Are my images uploaded to a server?

No. This tool runs entirely in your browser. Your images never leave your device, ensuring complete privacy and security.

Can I resize the image while converting?

Yes! You can set custom width and height in pixels before conversion. The image will be resized to those exact dimensions.

What quality level should I use?

The quality slider affects JPEG and WebP output. A value of 70-80% gives a good balance between file size and quality. PNG ignores the quality slider as it's lossless.

Is this image converter free to use?

Absolutely. The tool is 100% free with no hidden costs or watermarks.

Practical guide

How to use Image Compressor & Converter

Image format and file size affect compatibility, loading speed, upload limits, and visual quality. This tool gives you a quick way to prepare a file for a specific destination.

Step-by-step

  1. 1Choose the source image and identify the destination requirement.
  2. 2Select the output format and compression settings that fit the use case.
  3. 3Compare the preview or resulting file with the original.
  4. 4Download the converted file and verify its dimensions and appearance before replacing the original.

Good use cases

  • JPG for many photographic images
  • PNG when transparency or lossless output is important
  • WebP when efficient web delivery is supported

Things to check

  • Compression is a trade-off. A smaller file may have lower visual quality, while lossless or high-quality settings may retain more detail but produce a larger file.

Related reading

Image format decisions are really trade-offs between compatibility, transparency, visual quality, and file size. The best format depends on where the file will be used.

Read the Image Compressor & Converter guide

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Helpful answers

Frequently Asked Questions

Answers to common questions about this tool and its practical use.

Why would I convert an image format?

Different formats provide different combinations of compatibility, transparency, compression efficiency, and image quality.

Which format is best for photographs?

JPG is widely supported and is commonly used for photographs. WebP can also be efficient for web delivery when the destination supports it.

When should I use PNG?

PNG is useful when you need transparency or lossless image storage, especially for graphics with sharp edges or limited colors.

Does compressing an image always reduce quality?

Lossy compression can reduce visual quality, while lossless methods aim to preserve the original image data. The best choice depends on the destination.