Online Image Compressor.
Need Custom Conversion?Compress your images with ConversionTab. Reduce file size and optimize images for the web without losing quality.
Drop an image here, or click to browse
Max 15 MB · JPEG, PNG, WebP, BMP (in-browser)
Preview (optional)
Your image appears here after you choose a file.
This tool only reduces file size (encoding). It does not change width or height in pixels. To change dimensions, use the image resizer or an image converter.
How heavily the encoder compresses (similar to “JPEG quality”). Lower values make a smaller download but can show blockiness or soft detail. PNG with graphics may change less than photos. Extremely large images can still hit your browser’s canvas limits when decoding.
Why teams use this Compress Image page
Compress your images with ConversionTab. Reduce file size and optimize images for the web without losing quality.
Matches this URL
Copy and controls align with /compress-image so bookmarks reopen the same workflow.
Preview before download
Catch formatting issues while the file is still in the tab.
Browser-first
No installer on locked-down laptops—open, run, save.
Private when local
Sensitive drafts stay on-device on routes that process locally.