Image Compressor
Compress JPG and PNG images in your browser. Reduce file size before upload.
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What is Image Compressor?
Image compression reduces file size for faster websites and email while keeping acceptable visual quality.
How to use
Upload a JPG or PNG image.
Adjust quality slider.
Download the compressed file.
Benefits
- 100% browser-side
- Quality slider control
- See size before/after
Frequently Asked Questions
Which image formats can I compress?
Upload JPG or PNG images. JPEG uses the quality slider; PNG re-encodes at the chosen quality level.
Will compression change image dimensions?
No. Pixel dimensions stay the same — only file size changes. Use Image Resizer if you need smaller width or height.
Why did my PNG barely shrink?
PNG is lossless and photos compress less than JPEG. Convert to JPG with PNG ↔ JPG Converter for smaller photo files.
Are there file size limits?
Processing runs in your browser, so very large files may be slow or fail on low-memory devices. For best results, keep images under about 20 MB and PDFs under about 50–100 MB.
Is this tool free?
Yes. This tool is completely free to use with no sign-up, no limits, and no hidden fees.
Does my data leave my browser?
No. All processing happens entirely in your browser using client-side JavaScript. Your data is never sent to a server or stored anywhere.
Does this tool work on mobile?
Yes. PeasyDo tools work in modern mobile browsers on iOS and Android. For file tools, use a browser that supports file uploads and downloads.
Do I need to install software?
No. Everything runs in your browser — no desktop app, plugin, or account required.
Feedback & report a problem
Found a bug or have a suggestion? Let us know — it helps us improve this tool.
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