How it works
The Image Format Converter converts between JPG, PNG, WebP, AVIF, GIF, BMP, and TIFF formats in the browser — no upload required. Each format has specific use cases, compression characteristics, and browser support profiles. This tool lets you convert to the right format for each situation.
Format guide: - JPG: best for photos and complex gradients, lossy, universally supported, no transparency - PNG: lossless, supports full transparency, best for logos, UI elements, screenshots with sharp edges - WebP: 25-35% smaller than JPG at equivalent quality, supports both transparency and animation, supported by all modern browsers - AVIF: next-generation format, 50% smaller than JPG, excellent quality at low file sizes, requires Chrome 85+ / Safari 16+ - GIF: 256 color limit, supports animation, best replaced by WebP or AVIF for new projects - BMP: uncompressed, very large files, no longer recommended for web use - TIFF: lossless, used in print and archival workflows, not suitable for web delivery
How to use it: upload the source image. Select the target format from the dropdown. Adjust quality for lossy formats. The converted image downloads immediately without any server round-trip.
Transparency handling: converting a PNG with transparency to JPG fills the transparent areas with a configurable background color (white by default). Converting JPG to PNG preserves the existing pixels without generating transparency.
Color space: all conversions preserve the sRGB color space. ICC profiles embedded in the source file are retained where the target format supports them.
Privacy: all format conversion runs in your browser using the Canvas API and Wasm codecs. Images with confidential content — medical scans, legal documents, financial screenshots — are converted without any data leaving your device.
Frequently Asked Questions
- Use WebP for images displayed on modern websites where you control the HTML. WebP is 25–35% smaller than JPG at equivalent quality and is supported by all browsers released after 2020. Use JPG when you need broad compatibility with older software, email clients, and platforms that don't accept WebP.
- No. Converting from a lossy format (JPG) to a lossless format (PNG) does not recover lost quality — it just stops any further quality loss from subsequent saves. The PNG output is pixel-for-pixel identical to the JPG input.
- Yes. JPG does not support transparency. Transparent areas are filled with a configurable background color (white by default). If you need to preserve transparency, convert to WebP (which supports it) instead.
- AVIF (AV1 Image File Format) is a next-generation format that's typically 50% smaller than JPG at the same visual quality. It's supported by Chrome 85+, Firefox 93+, and Safari 16+. Use it for cutting-edge web performance optimization when you can also provide a JPG fallback for older browsers.