Your files
never leave your device

Converter.Plus is a free, browser-based file conversion suite that lets you convert, compress, and optimize documents and images without uploading a single file to any server. Whether you're dealing with HEIC photos from your iPhone, AVIF images downloaded from a modern website, WebP files that won't open in your design software, or PDFs that need to land in a different format, Converter.Plus handles the conversion instantly — right inside your browser tab.

Modern file formats have proliferated rapidly over the past decade, and the result is a confusing ecosystem where a file created on one device simply won't open on another. HEIC is Apple's default format for iPhone photos since iOS 11, but Windows doesn't support it without a paid codec. AVIF is a next-generation web format championed by Google and Netflix, delivering stunning compression ratios — but it confuses older software and non-technical users who just want to open an image. WebP, also created by Google, has been the web's preferred format since 2020, yet countless users still encounter "unsupported format" errors when they try to open a saved web image in Photoshop, an email attachment, or a print service.

The traditional fix has been to upload your files to a server-based converter — but that means your personal photos, sensitive documents, and private screenshots travel across the internet to a server you know nothing about. Many of these services have vague privacy policies, retain your files indefinitely, or sell usage data. Converter.Plus was built to solve this problem properly.

Three reasons Converter.Plus is different

Converter.Plus works on every major platform — Windows, macOS, Linux, iOS, and Android — without installing any software, browser extension, or app. It's free to use with no file size limits, no watermarks, and no account required.