Does compressing an image reduce quality?

Some quality loss occurs with lossy formats like JPEG and WebP, but at 70–80% quality the difference is usually imperceptible. PNG compression is lossless.

What's the maximum file size I can compress?

There's no hard limit — processing happens in your browser, so it depends on your device's memory. Most images up to 50 MB work fine.

Are my images uploaded to a server?

For this compressor, processing runs in your browser and we don't upload your image contents to our servers for compression.

Which format gives the smallest file size?

WebP typically produces the smallest files, followed by JPEG. PNG is lossless and usually the largest.

What quality should I choose for the web?

For web use, 75–85% quality for JPEG or WebP is usually ideal: small file size with minimal visible difference. Use PNG for logos or graphics that need sharp edges.

Compress Image

Fluranto's image compressor shrinks your image file sizes while preserving visual quality. Choose your compression level, pick an output format (JPEG, WebP, or PNG), and download the result instantly. Compression runs in your browser for this tool — we don't upload your photos to our servers for this step — ideal for speeding up websites or fitting email attachment limits.

Free · No limits · Runs in your browser

How to use

1Upload an image by dragging it onto the upload area or clicking to browse.
2Adjust the quality slider — lower values mean smaller files.
3Choose an output format (JPEG for photos, WebP for best compression, PNG for lossless).
4Click "Compress Image" and download the result.

Frequently asked questions

Does compressing an image reduce quality?: Some quality loss occurs with lossy formats like JPEG and WebP, but at 70–80% quality the difference is usually imperceptible. PNG compression is lossless.
What's the maximum file size I can compress?: There's no hard limit — processing happens in your browser, so it depends on your device's memory. Most images up to 50 MB work fine.
Are my images uploaded to a server?: For this compressor, processing runs in your browser and we don't upload your image contents to our servers for compression.
Which format gives the smallest file size?: WebP typically produces the smallest files, followed by JPEG. PNG is lossless and usually the largest.
What quality should I choose for the web?: For web use, 75–85% quality for JPEG or WebP is usually ideal: small file size with minimal visible difference. Use PNG for logos or graphics that need sharp edges.