Compress and convert images

How it works

1. 1

   Upload

   JPG, PNG or WebP up to 10 MB.

2. 2

   Choose format and quality

   Pick your output format and drag the quality slider until size and looks agree.

3. 3

   Download

   No credits are spent — conversion and compression are free tools.

Which format to choose

The short version: use WebP for your own web pages, PNG when you need a transparent master or maximum compatibility, and JPG when something older insists on it.

• JPG — photographs with no transparency. Small files, lossy, and the safest bet for compatibility.
• PNG — anything needing transparency, plus screenshots, logos and flat graphics with sharp edges. Lossless and therefore large.
• WebP — usually the best of both: supports transparency, and typically 25–35% smaller than an equivalent JPG or PNG. Supported by every current browser.

Why file size is worth caring about

Page weight is one of the few SEO factors entirely under your control. Images are almost always the largest thing on a page, and Largest Contentful Paint — a Core Web Vital that Google measures — is usually an image loading. Halving your image weight often does more for a page's performance score than any amount of code tuning.

It is not only search. On a phone connection, a 4 MB hero image is several seconds of blank screen, and a meaningful share of visitors do not wait.

Lossy and lossless, briefly

Lossless compression (PNG, and WebP in lossless mode) reduces file size by encoding the same pixels more efficiently. Nothing is discarded, and you can compress and decompress endlessly with no degradation.

Lossy compression (JPG, and WebP in lossy mode) throws away detail your eye is unlikely to notice. It achieves far smaller files, and the damage accumulates: every save of a JPG discards a little more. Always keep the original and export copies from it, rather than repeatedly re-saving the same file.

For most photographs, quality around 80% is the sweet spot — visually indistinguishable from the original at a fraction of the size.

Sensible defaults

• Resize before you compress. A 6000px image displayed at 1200px is wasting 80% of its bytes no matter how well it is compressed.
• Quality 80 for photographs, higher for anything with fine text or sharp graphics.
• Convert transparent PNG cutouts to WebP for web use — same transparency, far smaller.
• Keep an uncompressed master. Compression is a one-way door.

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