Conversion tool · Free · No sign-up
Image Compressor
Compress JPG and PNG images locally without losing visible quality.
About this tool
Large images are the #1 cause of slow websites. This tool allows you to compress JPG and PNG images directly in your browser using a 0-100 quality slider. It defaults to 80%, which is the industry sweet spot where file size drops significantly but the human eye cannot perceive any quality loss. Because it runs locally, your images are never uploaded to a server.
Key features
0-100 Quality Slider
Fine-tune the exact compression level you need for your project.
Live Before/After Preview
See exactly how the compressed image looks compared to the original.
100% Private
Images are processed entirely in your browser. No server uploads.
How to use it
- 1Click the upload area and select an image (PNG, JPG, or WebP).
- 2The tool instantly compresses it to 80% quality by default.
- 3Use the slider to increase or decrease the quality.
- 4Check the 'Compressed' preview to ensure the quality is acceptable.
- 5Click Download to save the optimized .jpg file.
Common use cases
- Optimizing blog post images before uploading to a CMS.
- Reducing the file size of portfolio project screenshots.
- Compressing images for email attachments to avoid size limits.
Frequently asked questions
Does it upload my images to a server?
No. The compression uses the browser's native HTML5 Canvas API. Your images never leave your computer.
What is the best quality setting?
80% is generally the best balance. It removes unnecessary file data that the human eye can't see, drastically reducing size while keeping the image looking perfect.
Does it support transparent PNGs?
When you compress a PNG, it is converted to a JPEG. Because JPEGs do not support transparency, transparent areas will become black. For standard photos, this is perfectly fine.
Private and free. Most of our tools run entirely in your browser, so the data you enter isn't uploaded or stored. There's no sign-up, and there never will be — they're built by the Fusion Trail Solutions team to be genuinely useful.
Need a custom tool or web app?
We design and build production-grade web apps, internal tools and SaaS platforms. Tell us what you need.
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