Online Photo Converter

How an online photo converter works

An online photo converter changes image files from one format to another. You pick the source and target formats, adjust quality settings, and receive the new file.

The process at Toolsly happens entirely in your browser using WebAssembly. Files stay on your device throughout.

Supported formats and their tradeoffs

Different formats suit different needs. PNG preserves transparency and works well for graphics. JPG reduces file size for photographs but drops transparency.

WebP and AVIF deliver smaller files at similar visual quality. HEIC appears on recent iPhones and needs conversion for broader compatibility.

Format	Compression	Transparency	Browser support	Typical use case	Average size for a 1080p photo
PNG	Low	Yes	All	Graphics, icons	2-4 MB
JPG	High	No	All	Photos	150-400 KB
WebP	High	Yes	Modern	Web images	80-250 KB
AVIF	Very high	Yes	Growing	Modern web	50-150 KB

Use the PNG to JPG tool when you need smaller photos for email. Switch to PNG to WebP for web pages that load faster.

Step-by-step conversion example

Open the tool page. Select a local photo file. Choose the output format and quality level. Click convert and download the result.

A 1080p photo at 2.8 MB in PNG drops to 240 KB in JPG at 85 percent quality. The same file becomes 110 KB in WebP at visually identical detail.

Privacy considerations with photo files

Photo files often contain location data or personal subjects. An online photo converter that uploads files creates copies on remote servers.

Toolsly avoids that step. Every conversion runs locally so no copy leaves your computer.

Common conversion pairs

People frequently move between these formats:

• PNG to JPG for smaller email attachments
• HEIC to JPG when sharing iPhone photos with Android users
• WebP to PNG when an older program needs the file

See the full set at the image category.

Quality and size settings

Most tools let you set output quality from 60 to 95 percent. Lower values shrink files faster but introduce visible artifacts on detailed areas.

Test one photo at 80 percent first. Increase only if edges look soft.

Batch handling limits

Current local tools process one file at a time to keep memory use low. For multiple files, repeat the steps or use a desktop program that supports scripts.

When to choose a different approach

If you need color profile conversion or watermark removal, a local photo converter may not cover every case. Check the specific tool description before starting.

For simple format swaps the browser tools handle the job without extra software.

Image Resize works well after format conversion when you also need smaller dimensions.

Real-world file size results

A 12-megapixel landscape photo measured 3.1 MB as PNG. After conversion to JPG at 85 percent it measured 312 KB. The WebP version at default settings measured 98 KB.

These numbers vary with image content. Photos with large flat areas shrink more than busy scenes.

Browser compatibility notes

All listed formats work in current Chrome, Firefox, Safari and Edge. AVIF requires Chrome 85 or later and Firefox 93 or later for full support.

Test your target audience browsers before choosing AVIF for production images.

Conclusion

Pick the format that matches your delivery needs and run the conversion locally. Start with the PNG to JPG tool for most photo sharing tasks.