Image Converter

Image conversion is rarely just changing a file extension. Each format encodes color, transparency, compression and metadata differently, so converting HEIC to JPG, PNG to WEBP or AVIF to PNG involves real tradeoffs in quality, file size and compatibility.

This collection documents every pairwise conversion between twelve formats — AVIF, BMP, GIF, HEIC, ICO, JPEG, JPG, PDF, PNG, SVG, TIFF and WEBP. Every guide explains why the conversion is needed, what survives the trip, what gets lost, and how to verify the result before relying on it.

ConvertFast processes all conversions locally: your images never pass through an upload server, batches run with consistent settings, and originals stay untouched for future re-processing.

Read the pair-specific guide before converting anything irreplaceable: every format pairing has its own rules about transparency, color profiles, animation and metadata survival. Ten minutes of preparation routinely saves an hour of re-converting a batch that came out wrong.