JPG Compressor
Reduce JPG file sizes by up to 80% while preserving visual quality. 100% private — processed entirely in your browser.
Drop your JPG files here
tap to browse or drag and drop
JPG / JPEG · Multiple files supported · Max 50MB each
Compression Mode
Max Dimension (optional)
Compressing...
Processed locally in your browser
Three Steps to Smaller JPGs
Upload JPGs
Drag and drop or click to select. Supports batch upload.
Choose Quality
Adjust the quality slider to match your needs.
Download Results
Get compressed files individually or as a ZIP.
Why Compress JPG Files?
JPG is the most widely used image format on the web, but unoptimized JPGs can significantly slow down websites, consume unnecessary storage, and eat into your bandwidth. A typical camera JPG can be 5–8MB — the same image compressed for web might be 300–500KB with no visible difference to the human eye.
Compressing your JPG files delivers faster page loads, better SEO rankings (Google rewards fast pages), lower storage costs, and faster email attachments. For e-commerce sites, compressed product images directly improve conversion rates.
Lossy vs Lossless JPG Compression
Lossy compression works by selectively discarding image data that is less perceptible to the human eye. At quality settings of 70–85%, most users cannot distinguish a lossy-compressed JPG from the original. This mode achieves the largest file size reductions — often 40–80%.
Lossless compression removes only redundant metadata and optimizes the encoding without changing any pixel data. The quality is mathematically identical to the original, though the file size reduction is typically smaller — around 10–30%.
Best Practices for JPG Compression
- For web use, 75–85% quality is generally indistinguishable from the original
- For social media, 80% quality produces great results at manageable file sizes
- For email attachments, target files under 1MB (use 60–70% quality)
- For print, keep quality at 90%+ to preserve fine detail
- Resize images to their display dimensions before compressing
Frequently Asked Questions
How much can I compress a JPG without losing quality?
Typically 20–60% reduction is achievable with imperceptible quality loss. Our tool lets you choose from three modes — High Quality, Balanced, and Smallest Size — so you can find the right balance for your use case.
Is the compressed JPG still a JPG file?
Yes. The output remains a JPG file with the same extension. Only the file size changes, not the format.
Does compressing a JPG reduce image dimensions?
No. By default, compression only changes the encoding quality, not the pixel dimensions. The image stays the same width and height.
Can I compress multiple JPGs at once?
Yes. You can upload and compress multiple JPG files in one session and download them all as a ZIP archive.
Are my JPG files uploaded to a server?
No. All compression happens locally in your browser using the Canvas API. Your files never leave your device.
What is the maximum file size I can compress?
There's no hard limit — it depends on your device's available memory. Most modern devices handle images up to 50MB with no issues.