Whether you’re building a website, preparing files for print, or sharing photos online, you’ll eventually need to convert an image from one format to another. Each format has strengths — JPG for photos, PNG for graphics with transparency, WebP for fast-loading websites. Our free Image Converter handles all the common formats instantly.
Image Formats Explained
| Format | Best For | Compression | Transparency |
|---|---|---|---|
| JPG / JPEG | Photos, complex images | Lossy (adjustable) | No |
| PNG | Screenshots, logos, graphics | Lossless | Yes |
| WebP | Websites (smaller files) | Lossy or lossless | Yes |
| GIF | Simple animations | Lossless (256 colors) | Yes |
| BMP | Uncompressed images | None | No |
| TIFF | Print / professional use | Lossless with options | Yes |
When to Use Each Format
For Websites: WebP Is the Winner
WebP images are 25-35% smaller than JPG and PNG at the same quality. Switching your site’s images to WebP can dramatically improve load times. Use our Image Converter to batch convert your images to WebP.
For Printing: TIFF or High-Quality JPG
Print shops require high-resolution files. TIFF preserves all image data without compression artifacts. High-quality JPG (90-100% quality) is also acceptable for most print jobs.
For Social Media: JPG
Instagram, Facebook, and Twitter all compress uploaded images heavily. Uploading in JPG gives you the best balance of quality and file size before their compression algorithms add another layer of degradation.
Lossy vs Lossless: What’s the Difference?
- Lossy compression (JPG, WebP): Reduces file size by discarding some image data. Higher compression = smaller file but visible quality loss at extreme settings
- Lossless compression (PNG, WebP lossless): Reduces file size without losing any image data. Perfect for text, screenshots, and logos
Our Image Converter lets you choose the quality level for lossy formats, so you can balance file size against visual quality.
Quick Conversion Reference
| From → To | File Size Change | Quality Impact | Common Use |
|---|---|---|---|
| PNG → JPG | −60 to 80% | Minor (photos), Major (text) | Website optimization |
| JPG → PNG | +200 to 400% | None | Adding transparency |
| JPG → WebP | −25 to 35% | Minimal | Page speed optimization |
| PNG → WebP | −25 to 50% | None (lossless mode) | Modern web standards |
| BMP → PNG | −70 to 90% | None (lossless) | Reducing file size |
Frequently Asked Questions
Does converting JPG to PNG improve quality?
No. Converting from lossy to lossless doesn’t restore data that was already discarded. The image stays at the quality of the original JPG.
Can I convert HEIC (iPhone) to JPG?
Yes, our Image Converter supports HEIC files from iPhones and converts them to widely compatible JPG format for sharing and uploading.
Does converting images reduce resolution?
No — format conversion preserves pixel dimensions. You need a separate resize/resample operation to change resolution. Use our Image Converter for format changes and check other tools for resizing.
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