Compress JPEG Online Free
Reduce JPEG and JPG file sizes up to 80% while keeping visual quality. Everything runs locally in your browser — your photos never leave your device.
Drop images here
or click to browse — JPEG, PNG, WebP
How to Compress JPEG Files
1
Upload JPEG
Drag and drop your JPEG or JPG images — or click to browse your files.
2
Adjust Quality
Pick a quality preset or fine-tune the slider. Lower values give smaller files.
3
Download
Your compressed JPEG files are ready instantly. Download individually or all at once.
Frequently Asked Questions
How do I compress a JPEG file without losing quality?
SlimPix uses smart compression algorithms that reduce JPEG file sizes while preserving visual quality. Set the quality slider to 'Large' (80%) or 'Best' (95%) for near-lossless results. The compression happens entirely in your browser — no uploads needed.
What is the best JPEG compression ratio?
For most photos, 50–70% quality gives the best balance between size and visual quality, often reducing files by 60–80%. For print or professional use, keep quality at 80–95%. SlimPix lets you preview and compare before downloading.
Can I compress multiple JPEG files at once?
Yes. SlimPix supports batch JPEG compression. Drag and drop multiple JPEG files at once, adjust your quality settings, and compress them all with a single click. Download individually or all at once.
Is it safe to compress JPEG files online?
With SlimPix, absolutely. Unlike other online compressors, SlimPix processes everything locally in your browser using JavaScript. Your JPEG files are never uploaded to any server. Your photos remain 100% private.