Image Compressor — Free, Private, Browser-Based
Reduce image file sizes by up to 90% while keeping visual quality. Works on PNG, JPG, WebP, and AVIF. Everything runs locally in your browser — your images never leave your device.
How to compress images without losing quality
- Drop your image. Drag and drop one or more PNG, JPG, WebP, or AVIF files into the upload area, or click to browse. There is no file size limit.
- Choose output quality. Use the quality slider to pick a target (50–90% is the sweet spot for most photos; UI screenshots tolerate 70–80%).
- Pick output format. Keep the original format, or convert to WebP/AVIF for smaller files at the same visual quality.
- Download. Click Download to save the compressed image, or Download All for batch ZIP. EXIF metadata is stripped automatically.
Use Cases
Frequently Asked Questions
Are my images uploaded to a server?
No. Compression runs entirely in your browser using canvas APIs. Your files never leave your device.
What formats are supported?
Input: PNG, JPG/JPEG, WebP, AVIF, HEIC. Output: PNG, JPG, WebP, AVIF. Use the HEIC to JPG tool first if you need to convert iPhone HEIC files separately.
Will compression lose quality?
Lossy formats (JPG, WebP, AVIF) reduce quality slightly based on your quality slider. PNG uses lossless compression — pixel data is identical, just stored more efficiently.
Is there a file size limit?
No hard limit. Performance depends on your browser and device memory. We have tested files up to 50 MB without issue.
Can I batch compress?
Yes. Drop multiple files at once and download all as ZIP, or download individually.
Does it strip EXIF metadata?
Yes. Compressed images do not retain camera EXIF data (location, device, timestamps) for privacy.
Related tools
More free, in-browser tools from the Image Tools set — every one runs locally, with no sign-up and no upload.