What is Image Format Converter?
Image Format Converter is a multi-format conversion tool that handles AVIF, JPEG, PNG, WebP, HEIC, BMP, TIFF, GIF, and other image formats. Instead of hunting for separate converters for each format pair, this single tool covers all of them. Select your input file, pick the output format, adjust quality, and download. It works for photographers switching between RAW-adjacent formats, web developers optimizing images for different browser support levels, and anyone who receives images in a format their software can't handle. The converter runs locally in your browser. No server processing, no file uploads, no size limits. You can convert a single photo or process a batch of hundreds. Each conversion preserves as much image quality as the target format allows.
Image Format Converter Formula
A universal decode-render-encode pipeline handles any supported format pair.
Format Detection & Decoding
The tool identifies your input file's format from its header bytes — not the file extension. It then uses the appropriate browser-native decoder (or a bundled decoder for formats like HEIC) to extract raw pixel data.
Color Space Normalization
Different formats use different color spaces. The tool normalizes everything to sRGB on the canvas, or preserves wide gamut data when the output format supports it. Transparency is carried through when both input and output formats support alpha channels.
Target Format Encoding
The normalized image data is encoded into your chosen output format. Lossy formats (JPEG, WebP, AVIF) use your quality setting. Lossless formats (PNG, BMP, TIFF) preserve every pixel exactly.