Converto: Zero-upload private file converter in your browser

Hello Product Hunt community! 👋 I'm Adrien, the creator of Converto. Most online file converters require you to upload your files to their cloud servers, which raises privacy concerns, enforces slow upload limits, and locks batch conversions behind expensive subscriptions. I wanted a tool that is fast, free, and 100% private. So I built Converto. Thanks to WebAssembly (FFmpeg.wasm) and modern browser capabilities, all conversions run locally on your device. Your files never touch a server. Key features: - 37+ supported formats (Images, Video, Audio) - Zero server uploads (100% private & secure) - Sub-second conversion for images - Free forever with a premium tier for power users I'd love to hear your feedback, feature requests, or any formats you'd like to see added next! Happy converting! ⚡