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About Image Compressor Online
This tool reduces image file size while keeping visual quality acceptable. It re-encodes the image with smarter compression parameters — lower JPEG quality setting, PNG with better filter selection, or WebP if the format allows — striking a balance between file size and appearance.
Smaller images make web pages load faster, reduce mobile data usage for visitors, lower CDN costs, and improve SEO (page speed is a ranking factor). Most photos can be compressed 60-80% with no visible quality difference.
The tool offers quality presets (high/medium/aggressive) plus a manual slider. Always compare original and compressed side-by-side before committing to a quality level for production use.
How to use this tool
How to compress an image
Upload your image
Drop the file into the Image field. JPEG, PNG, WebP, AVIF, HEIC, and most other raster formats decode here.
Pick the output format
Format offers JPEG (default), WebP, or PNG. JPEG is universal; WebP is ~25-35% smaller at the same quality; PNG only makes sense for lossless artwork.
Set JPEG/WebP quality
Quality slider runs 30–100 (default 75). 60–80 is the sweet spot for photos; below 50 visible artifacts appear; PNG ignores this value and uses compressionLevel 9.
Press Run
Output is the recompressed file in your chosen format. Compare file size in the result against your source — if the savings are too small, try WebP and a lower quality.