Large images slow down websites, fill up email inboxes, and eat storage on your phone. A free image compressor shrinks file size while keeping acceptable visual quality — and when it runs in your browser, your photos stay private.
When should you compress images?
- Uploading product photos to an e-commerce site or blog.
- Attaching screenshots to email or chat apps with size limits.
- Optimizing JPG exports from a camera before sharing online.
- Reducing PNG file size for faster page loads.
How our Image Compressor works
Pitara's Image Compressor uses the Canvas API to re-encode your image at a lower quality setting. You pick a compression level (low, medium, or high) or fine-tune the quality slider. The output keeps the same format — JPG stays JPG, PNG stays PNG.
Step-by-step guide
- Go to the Image Compressor tool.
- Upload a JPG or PNG by drag-and-drop or file picker.
- Choose low, medium, or high compression — or set a custom quality percentage.
- Compare original vs compressed preview and file sizes side by side.
- Click Download to save the smaller file.
Choosing the right quality
High compression (40% quality) is best for thumbnails and previews where small file size matters most. Medium (70%) balances size and clarity for most web use. Low compression (90%) is ideal when you need near-original quality with modest savings.
Need exact dimensions too? Pair compression with our Image Resizer or convert formats with the PNG JPG Converter. Browse all image tools on Pitara — every one runs locally in your browser.
Privacy note
Your images are never uploaded to our servers. Compression happens on your device using the browser Canvas API — the same privacy-first approach as our PDF tools.
Try it free
Use our Image Compressor tool — runs in your browser, no upload required.
Open Image Compressor