Free Online Image Compressor & Converter
Compress JPG, PNG and WebP images online for free. Choose your quality and format, then download the result. Your images stay on your device.
How to compress an image online for free
Use this free image compressor to optimize pictures for websites, blog posts, email attachments and online portfolios. The tool works in your browser, so you can process an image without creating an account or sending it to ferramentas.
- Choose an image. Select a JPG, PNG or WebP file up to 20 MB, or drag it into the upload area.
- Pick a format. Choose WebP for efficient web images, JPG for photographs or PNG when you need lossless output.
- Adjust quality. For JPG and WebP, start at 75% and change the slider to balance file size and appearance. PNG ignores the quality slider.
- Compress and download. Compare the original and new file sizes, inspect the preview and save the result.
Which image format should you choose?
Different formats work best for different images. Converting a file does not guarantee that it becomes smaller, so always check the final size.
| Format | Best for | Important detail |
|---|---|---|
| WebP | Website photos and graphics | Often produces smaller files; supports transparency. |
| JPG / JPEG | Photos and widely compatible sharing | Lossy compression; does not preserve transparency. |
| PNG | Graphics and images needing lossless output | Can be larger; the quality slider does not control PNG export. |
Tips to reduce image size without noticeable quality loss
For photos, try WebP at around 75-85% quality, then inspect fine details such as text and edges. If a file is already heavily compressed, converting it again may not help. Images with large pixel dimensions can remain heavy even after compression. For a website, use appropriately sized images, responsive image markup and lazy loading where suitable.
Frequently asked questions
Is this image compressor free?
Yes. You can compress and convert supported images without signing up or paying.
Are my images uploaded to ferramentas?
No. This tool uses browser image APIs to process the file locally. Your image is not sent to ferramentas for compression.
Can I compress PNG images?
Yes, you can re-export PNG images or convert them to JPG or WebP. PNG export is lossless, so the quality slider does not apply, and the resulting PNG may not be smaller.
Does compression reduce image quality?
JPG and WebP quality settings may discard visual information to reduce file size. Higher quality generally retains more detail but creates larger files. Results depend on the image and your browser.
Can I convert JPG to WebP or PNG to JPG?
Yes. Select your source image and choose an output format. JPG does not support transparency, so transparent pixels are placed on a white background.
Why did my compressed image get larger?
File size depends on the original encoding, image content, format and chosen quality. A highly optimized source file may already be smaller than the new export.
What is the maximum image size?
The tool accepts files up to 20 MB. Very large image dimensions may still exceed the memory limits of your device or browser.