Compress JPEG images online

Compress JPEG Images Online — Free JPG Compressor

Compress JPEG images to reduce file size for faster website loading, email attachments, and fitting within upload size limits. This free online JPEG compressor strips unnecessary metadata (EXIF, GPS location, camera info, thumbnails) and recompresses the image data with your choice of three optimization methods:

Lossless — strips all metadata and markers without any visible effect on image quality; the pixels remain untouched.
By file size — specify a target file size in KB and the tool compresses the image as close to that limit as possible.
By quality factor — set a JPEG quality level from 1 to 100 (higher means better quality, larger file).

How to compress JPEG images

Upload your JPG or JPEG file (drag and drop, browse, or paste a URL).
Choose an optimization method: lossless, fit to target file size, or set a quality factor.
Click "Compress JPEG!" and download the optimized image.

Choosing the right JPEG quality level

The quality factor (1–100) controls the tradeoff between file size and visual fidelity. Here is a general guide:

Quality	Best for	Typical reduction
90–100	Print, archival, professional photography	10–30%
75–89	Web images, social media, blog posts	40–60%
50–74	Thumbnails, previews, email attachments	60–80%
Below 50	Extreme compression when quality is not critical	80%+

For most web use, a quality factor between 75 and 85 provides an excellent balance — the file shrinks significantly while the visual difference from the original remains nearly imperceptible.

When to compress JPEG files

Website optimization — smaller images load faster, improving page speed scores, Core Web Vitals, and SEO rankings.
Email attachments — compress photos to stay within email size limits (typically 25MB).
Social media uploads — platforms recompress uploaded images anyway; starting with a well-optimized JPEG gives better results.
Storage savings — reduce the size of photo libraries on your phone or cloud storage.
Form and application submissions — many online forms and government portals have strict file size limits.

Frequently asked questions

Does compressing a JPEG reduce image quality?

The lossless option preserves quality exactly. The quality factor and file size options use lossy compression, which discards some data. At settings above 80, the quality loss is typically invisible to the human eye.

What metadata is stripped?

The compressor removes EXIF data (camera model, settings, date), GPS location, embedded thumbnails, color profiles, and other non-essential markers. This alone can save 10–100 KB per image.

Can I compress multiple JPEG images at once?

This tool processes one image at a time. Upload a JPG, download the compressed version, then upload the next. For bulk compression, consider running images through the tool sequentially.

Is this JPEG compressor free?

Yes, 100% free with no watermarks, no signup, and no limits. All uploaded files are automatically deleted one hour after upload.