Image Format Converter
Convert images between PNG, JPG, and WebP formats online for free. Adjust quality for lossy formats, preview results, and download instantly. 100% client-side — your images never leave your device.
About Image Format Converter
Convert images between popular formats quickly and privately. This tool uses the HTML5 Canvas API to transform images entirely in your browser — no server upload required. Switch between PNG (lossless, supports transparency), JPG (small size, ideal for photos), and WebP (modern, efficient compression).
Features
- 100% client-side conversion — images never leave your device
- Convert between PNG, JPG, and WebP formats
- Adjustable quality for JPG and WebP output
- Real-time preview with before/after file size comparison
- Transparency warning when converting to JPG
- Drag & drop or click to upload — no installation needed
Common Use Cases
- Convert PNG screenshots to JPG for smaller email attachments
- Convert JPG photos to WebP for modern web optimization
- Convert WebP to PNG for editing in legacy software
- Create transparent PNGs from other formats for design work
FAQ
Is my image data safe?
Yes. All conversion happens directly in your browser using the Canvas API. Your images are never transmitted to any server.
What formats are supported?
Input and output: PNG, JPEG, WebP. You can convert in any direction between these three formats.
Will converting to JPG preserve transparency?
No. JPG does not support transparency (alpha channel). The tool will warn you and replace transparent areas with a white background.
What is the maximum file size?
Maximum upload size is 10MB, which covers most common use cases.