Every day, millions of people need to convert images from one format to another — whether it is converting a PNG screenshot to JPG to reduce file size, converting a HEIC photo from iPhone to JPG so it can be opened on Windows, or converting images to WEBP for a website.
But which format should you use and when? And how do you convert between them quickly and free, without installing any software? This complete guide answers both questions.
Convert Images Between JPG, PNG, WEBP, HEIC — Free & Instant
🔄 Convert Image Now →No signup · No software · Files never uploaded · Works on mobile
JPG is the most widely used image format in the world. It uses compression to keep file sizes small, making it perfect for photographs, social media images, and any situation where file size matters. The trade-off is that JPG uses "lossy" compression — each time you save a JPG, a tiny amount of quality is lost. JPG does not support transparent backgrounds.
✓ Use JPG for: Profile photos, product photos, social media posts, WhatsApp images, email attachments
PNG uses lossless compression, meaning no quality is lost when you save the file. PNG also supports transparent backgrounds (alpha channel), making it the perfect choice for logos, icons, screenshots, and any image where transparency is needed. The trade-off is that PNG files are larger than JPG.
✓ Use PNG for: Logos, icons, screenshots, watermarks, images with transparent backgrounds
WEBP is a modern image format developed by Google. It offers better compression than both JPG and PNG — WEBP files are typically 25-35% smaller than equivalent JPG files at the same quality. WEBP supports both transparency and animation. It is the recommended format for website images as it speeds up page loading significantly.
✓ Use WEBP for: Website images, blog post images, e-commerce product images, web banners
HEIC is the default photo format used by iPhones since iOS 11. It offers excellent quality with very small file sizes — roughly half the size of a comparable JPG. The problem is that HEIC is not widely supported on Windows and Android. You often need to convert HEIC to JPG to open iPhone photos on a Windows computer or share them on most platforms.
✓ Convert HEIC to JPG when: Opening iPhone photos on Windows, sharing on email, social media, or Google Drive
| Feature | JPG | PNG | WEBP | HEIC |
|---|---|---|---|---|
| File size | Small | Large | Smallest | Very small |
| Quality loss | Yes (lossy) | No (lossless) | Both options | No (lossless) |
| Transparency | No | Yes | Yes | Yes |
| Browser support | Universal | Universal | Modern browsers | Limited |
| Best use case | Photos | Logos, graphics | Web images | iPhone storage |
| WhatsApp sharing | ✓ Perfect | ✓ Works | ⚠ Limited | ✗ Convert first |
The entire process takes under 10 seconds. No signup, no email required. Your image is never uploaded to any server — conversion happens in your browser.
Convert your image to any format — free and instant
🔄 Convert Image Free →JPG · PNG · WEBP · HEIC · No signup needed