What is an Image Converter?
An online image converter is a free browser-based tool that changes an image from one file format to another — for example, converting a JPG photo to WEBP for faster website loading, or converting a PNG to JPG to reduce file size for email attachments.
Calcon's Image Converter supports 8 popular formats including JPG, PNG, WEBP, GIF, BMP, ICO, SVG, and TIFF — all processed directly in your browser with no file uploads to any server.
Supported Image Formats
| Format | Full Name | Transparency |
|---|---|---|
| JPG/JPEG | Joint Photographic Experts Group | ❌ No |
| PNG | Portable Network Graphics | ✅ Yes |
| WEBP | Web Picture Format | ✅ Yes |
| GIF | Graphics Interchange Format | ✅ Yes |
| BMP | Bitmap Image File | ❌ No |
| ICO | Icon File Format | ✅ Yes |
| SVG | Scalable Vector Graphics | ✅ Yes |
| TIFF | Tagged Image File Format | ✅ Yes |
How to Convert an Image Online
- Upload your image by clicking the upload area or dragging and dropping your file. Supports JPG, PNG, WEBP, GIF, BMP, SVG, TIFF, and ICO files up to 10 MB each.
- Select your output format by clicking one of the format buttons: JPEG, PNG, WEBP, GIF, BMP, or ICO.
- Adjust quality using the slider if you selected JPEG or WEBP output. Higher quality means better image but larger file size.
- For batch conversion, upload multiple files at once and click “Convert All” to process them together.
- Downloadyour converted image instantly. For multiple files, use “Download All as ZIP”.
When to Use Each Image Format
Use JPG/JPEG for:
Photographs, social media images, email attachments, and any image where file size matters more than transparency. JPG uses lossy compression which reduces file size significantly — ideal for photos with millions of colors.
Use PNG for:
Logos, screenshots, graphics with text, and any image that needs a transparent background. PNG uses lossless compression — no quality is lost but files are larger than JPG.
Use WEBP for:
Website images where page loading speed matters. WEBP is Google's modern image format that is 25–35% smaller than JPG and PNG at the same visual quality. Supported by all modern browsers.
Use GIF for:
Simple animated images, small icons, and graphics with limited colors (max 256 colors). GIF supports animation and transparency but is not suitable for photographs.
Use BMP for:
Windows applications, printing, and image editing workflows that require uncompressed raw image data. BMP files are large but contain full quality pixel data.
Use ICO for:
Website favicons (the small icon shown in browser tabs), Windows desktop icons, and application icons. ICO files are typically 32×32 or 64×64 pixels.
Use SVG for:
Logos, icons, and illustrations that need to scale to any size without losing quality. SVG is a vector format that looks sharp on any screen resolution.
JPG vs PNG vs WEBP — Which is Better?
| Feature | JPG | PNG | WEBP |
|---|---|---|---|
| File Size | Small | Large | Smallest |
| Quality | Lossy | Lossless | Both |
| Transparency | ❌ No | ✅ Yes | ✅ Yes |
| Animation | ❌ No | ❌ No | ✅ Yes |
| Browser Support | ✅ All | ✅ All | ✅ Modern |
| Best For | Photos | Graphics | Web |
