Image Compressor
Reduce JPG, PNG, and WebP file size locally in the browser.
Image Compressor is built for social posts, avatars, product images, screenshots, and blog graphics that need a smaller file before publishing or sharing. Adjust quality, compare the before-and-after size, and choose whether to keep the format or export JPEG or WebP. The original image is compressed in your browser; email delivery, if selected, can send the generated output.
Tool area
The original is processed locally in your browser; email delivery can send the generated output.
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What this tool can do
- Compress JPG, PNG, and WebP images locally in the browser and compare size savings.
Who this tool is for
Useful for reducing image file size before uploading to a website, blog, form, slide deck, or social post.
Common mistakes
Before using Image Compressor, check that the inputs and destination workflow match. These issues can make an output look useful while still being wrong for the real task.
- Do not repeatedly compress the same lossy image.
- Do not expect a blurry source to become sharp.
- Do not ignore output format and transparency needs.
Limitations
Image Compressor is a browser-based helper for quick preparation, cleanup, or checking. Keep the original material and review important output before using it in a formal workflow.
- Browser memory limits very large images.
- Compression can reduce visual quality.
- It does not automatically know each platform’s best dimensions.
How to use
- Choose a JPG, PNG, or WebP image and review the input preview.
- Adjust the quality slider and choose Keep, JPEG, or WebP output.
- Compare original size, compressed size, and the saved percentage.
- Download the new image or clear the file to start again.
Use cases
- Reduce a blog cover before uploading it to a CMS.
- Compress product photos to improve ecommerce page loading.
- Shrink screenshots or proof documents to fit a form upload limit.
- Download a WebP version for a website while keeping the source file.
Who is it for
- Useful for reducing image file size before uploading to a website, blog, form, slide deck, or social post.
Real examples
Example 1
Reduce a 3 MB product image before CMS upload.
Example 2
Test quality and file size for a blog thumbnail.
Example 3
Compress event photos before sending them.
Good to know
- Do not repeatedly compress the same lossy image.
- Do not expect a blurry source to become sharp.
- Do not ignore output format and transparency needs.
- Browser memory limits very large images.
- Compression can reduce visual quality.
- It does not automatically know each platform’s best dimensions.
FAQ
- Is the image uploaded?
- No. Compression happens in the browser.
- Will compression blur the image?
- It can. Compare output quality and file size.
- Can it process many images?
- Large or many files may be limited by device memory.
- Is transparency preserved?
- Check the output format. JPG does not support transparency.
- Is it for print production?
- Not by itself. Confirm resolution and color requirements for print.
Privacy & local processing
The original image is compressed in your browser; if you choose email delivery, the generated output may be sent by FunnyTools through Brevo.
The original image is compressed locally in your browser and is not uploaded for compression; if you choose email delivery, the generated output and email address enter FunnyTools' delivery flow as described on this page.
Trust & usage note
This tool runs mainly in your browser. Your input is not actively uploaded to a server. Avoid entering highly sensitive data. Results are for reference only.
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