Image Format Converter — Free Online

Convert Image Online is a free online tool that works entirely in your browser — no signup, no data uploaded, no limits.

Convert Between Image Formats — PNG, JPG, WebP, GIF

Different platforms and use cases demand different image formats. PNG gives you lossless quality and transparency support — perfect for logos, screenshots, and graphics with sharp edges. JPG trades a small amount of quality for dramatically smaller file sizes — ideal for photographs. WebP is Google's modern format that beats both: smaller than JPG with better quality than PNG. GIF handles simple animations but produces large files for complex content.

Tooliby's image format converter handles all these conversions cleanly. Upload any supported image and select the output format. The conversion preserves all visual information appropriate to the target format. Converting PNG to JPG, for example, fills any transparent areas with white since JPG does not support transparency. Converting JPG to PNG produces a lossless copy at a larger file size.

Which Format Should You Use?

• PNG — logos, icons, screenshots, graphics with text, anything needing transparency
• JPG — photographs, hero images, anything where file size matters more than pixel-perfect quality
• WebP — web use where you want the best of both worlds: small files and sharp quality
• GIF — simple animations only; for static images, PNG or JPG will always be better