Compress Image Online Free

Shrink your image file size by up to 80% without visible quality loss. PNG, JPG, WebP — all supported. Free, instant, no account needed.

Drop your image here

JPG, PNG, WebP — Max 10MB

Compression Quality

90% — High quality 75% — Balanced 50% — Small size 30% — Smallest

Your image is deleted immediately after processing. Never stored or shared.

How to Compress Image

Upload ImageUpload your PNG, JPG, or WebP image (up to 10MB)

ConfigureChoose compression quality — lower means smaller file size

DownloadDownload your compressed image instantly

Compress Image Online is a free online tool that works entirely in your browser — no signup, no data uploaded, no limits.

Reduce Image File Size Without Ruining Quality

Large image files slow down websites, get rejected by upload portals, and eat through mobile data when sharing. A 4MB photo taken on a modern smartphone can easily be compressed to under 500KB without any visible difference on screen. Tooliby's free image compressor uses SkiaSharp's encoding pipeline to strip unnecessary data while keeping the visual quality where it matters.

The quality slider gives you full control. Drag it lower for the smallest file size — great for website thumbnails and email attachments. Keep it higher for images that need to look sharp on large screens. Most users find that 70-80% quality is the sweet spot: files are 60-75% smaller than the original while looking identical at normal viewing sizes.

When Should You Compress Images?

Before uploading to a website — large images slow page load speeds and hurt SEO
Before attaching to email — most servers have 10-25MB attachment limits
Before sharing on WhatsApp or social media — smaller files send faster
Before submitting to job portals or university applications with file size limits
Before archiving large photo collections to save storage space

Frequently Asked Questions

At 70-80% quality, the difference is invisible to the naked eye on most screens. Only at very low quality settings (below 40%) will you notice visible artifacts, particularly around sharp edges and text.

JPG, PNG, and WebP are fully supported. The output format matches your input — a PNG goes in, a compressed PNG comes out.

Depending on the original image and quality setting, reductions of 40-80% are typical. Photos compress more than graphics with flat colors.

You can compress images up to 10MB per file.

No. Compression only reduces file size — the width and height in pixels stay exactly the same.

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