Convert Images

Converting between image formats is a common need, whether you are preparing graphics for the web, ensuring compatibility with a specific application, or reducing file sizes by switching to a more efficient codec. Traditional online converters upload your files to a server, process them remotely, and send back the result. This round-trip exposes your images to interception, logging, and potential misuse. LocalForge eliminates that risk entirely by performing format conversion directly in your browser.

Our converter handles conversions between JPEG, PNG, WebP, BMP, and HEIC formats. HEIC decoding uses a WebAssembly-compiled build of libheif, running at near-native speed inside your browser without any server involvement. The conversion pipeline preserves color profiles and handles transparency correctly when moving between formats that support alpha channels and those that do not.

The privacy advantage is especially relevant for HEIC conversion. Apple devices capture photos in HEIC format by default, and these images often contain sensitive personal content. Rather than sending your iPhone photos to a remote conversion service, LocalForge decodes them locally using WASM and outputs the format you need without any network activity.

Whether you are converting a single screenshot or batch-processing hundreds of product photos, the operation stays between you and your device. No uploads, no accounts, no file size limits imposed by server constraints. Just fast, private format conversion powered by modern browser capabilities.