Use case

Batch convert images

Convert multiple images between formats in one operation — without uploading them to a server.

All conversion runs in your browser — images never leave your device.

Convert images — files stay local How local processing works →

Free vs Pro for image conversion

Both plans process files locally in your browser. The difference is throughput.

Free

✓One image at a time
✓Full format support
✓Quality control
✓Local processing — no upload

Pro

✓Batch mode — multiple files at once
✓Full format support
✓Quality control per file
✓Local processing — no upload

Convert images — files stay local See Pro pricing

Common conversion scenarios

JPEG to WebP — reduce file sizes for web pages without changing visual quality. WebP typically produces 25–35% smaller files than JPEG at equivalent quality settings.

PNG to JPEG — convert screenshots, mockups, or design assets to a format suitable for general sharing or embedding. Use when transparency is not needed and smaller file size matters more than exact pixel fidelity.

PNG to WebP — convert losslessly for UI assets and diagrams that need to remain crisp. WebP supports lossless compression and typically achieves smaller files than PNG.

Common questions

What image formats are supported?

You can convert between JPEG, PNG, and WebP. Additional formats may be supported — check the tool for the current list.

What is the difference between free and Pro for batch conversion?

Free accounts convert one image at a time. Pro accounts unlock batch mode — drop multiple files and convert them all in a single operation. All processing runs locally in your browser regardless of plan.

Are the converted files uploaded anywhere?

No. Conversion runs entirely in your browser using WebAssembly. None of your images — inputs or outputs — are transmitted to any server. You can verify this by checking the Network tab in your browser developer tools while converting.

Does conversion affect image quality?

It depends on the conversion direction. Converting from a higher-quality format (like PNG) to a lossy format (like JPEG) will involve some quality reduction, which you can control with a quality setting. Converting to WebP at equivalent quality settings typically produces smaller files than JPEG at the same visual quality.

Compress images for a website →How local processing works →Pro pricing →