How to Convert PNG to JPG: The Complete Guide

PNG and JPG are the two most common image formats on the web, but they serve different purposes. PNG is lossless and supports transparency — perfect for logos, screenshots, and graphics. JPG uses compression that makes files much smaller, which is ideal for photos, websites, and sharing. When you need compatibility, smaller file sizes, or want to upload to a platform that requires JPG, converting from PNG is the right move.

PNG vs JPG: Key Differences

• File size: JPG files are typically 60–80% smaller than equivalent PNGs
• Quality: PNG is lossless (no quality loss); JPG uses compression (slight quality reduction)
• Transparency: PNG supports transparent backgrounds; JPG does not
• Best use: PNG for graphics, logos, screenshots; JPG for photos
• Compatibility: JPG is universally accepted; PNG has rare edge cases

When Should You Convert PNG to JPG?

Convert PNG to JPG when you need to reduce file size for web upload, when a platform requires JPG format (some social media, print services), when sharing photos over messaging apps, or when your PNG doesn't use transparency and you want a smaller file. Don't convert if your image has a transparent background — JPG will fill it with white.

Method 1: Use FileTools.eu (Fastest)

The easiest way to convert PNG to JPG online is FileTools.eu. Drop your PNG file, choose JPG quality (default 90% is usually perfect), and download instantly. Everything runs in your browser — your files are never uploaded to any server. Works on iPhone, Android, Mac, and Windows.

Method 2: Windows Paint

1. Right-click your PNG file and choose 'Open with > Paint'
2. Click File > Save as
3. Select 'JPEG picture' from the dropdown
4. Choose your save location and click Save

Method 3: Mac Preview

1. Open the PNG file in Preview
2. Click File > Export
3. Change Format to JPEG
4. Adjust quality slider if needed
5. Click Save

Method 4: iPhone & Android

On mobile, the easiest option is using FileTools.eu in your browser — it works perfectly on Safari and Chrome. Open the site, tap the PNG to JPG converter, select your file from the Photos app or Files app, and download the JPG instantly.

How Much Smaller Will the File Be?

Typical results: a 2MB PNG photo becomes a 300–600KB JPG at 90% quality — that's a 70–85% size reduction. For screenshots and graphics with flat colors, the reduction is even more dramatic. The visual quality difference at 85–90% compression is nearly imperceptible to the human eye.

Choosing the Right Quality Setting

• 95–100%: Minimal compression, nearly identical to PNG quality, larger file
• 85–90%: Best balance — excellent quality, significantly smaller file (recommended)
• 70–80%: Good for web thumbnails, social media, smaller images
• Below 70%: Noticeable quality loss, use only when file size is critical