Image Compressor
Compress JPG and PNG images to reduce file size — right in your browser, no upload.
About this tool
Large images are the biggest cause of slow web pages. This compressor reduces JPG and PNG file sizes by re-encoding them at a quality level you choose — often cutting 60–80% of the size with barely visible difference. Unlike most online compressors, your image never leaves your device: compression happens locally using your browser’s canvas engine.
How to use
- 1 Select or drop an image file (JPG or PNG).
- 2 Choose a quality level — 70–80% is a good balance.
- 3 Click Compress and download the smaller image.
Why use this tool
- Typical savings of 60–80% in file size with minimal quality loss.
- 100% private: the image is processed locally, never uploaded.
- Faster page loads and better Core Web Vitals for your site.
Frequently asked questions
What quality setting should I use?
For web photos, 70–80% quality is usually indistinguishable from the original while cutting most of the file size.
Is my image uploaded to a server?
No. Compression runs entirely in your browser using the canvas API — the file never leaves your computer.
Does compression change the image dimensions?
No, only the file size. Use the Image Resizer first if you also want smaller dimensions for extra savings.
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By the SkillNexy Team · Last updated: 2026-07-12 · 100% free · Runs locally in your browser — nothing is uploaded.