Mono to Stereo Converter

This tool performs mono-to-stereo conversion in the browser or server-side environment, allowing users to create stereo tracks from mono sources without installing software. It targets podcasters, music makers, video editors, and archivists who need fast, accessible turning of mono material into usable stereo assets. By supporting common formats and standard PCM encodings, it fits into typical post-production workflows and enables quick auditioning and sharing of stereo-ready assets. The approach emphasizes safety, quality, and predictability, providing clear metadata and consistent results across common sample rates.

Conceptually, mono-to-stereo widening duplicates the mono signal and applies lightweight width shaping or optional inter-channel offset. It uses pan-law-inspired gains to prevent clipping and preserves loudness when normalization is requested. When a stereo input is provided, the tool can widen or preserve channels, or downmix per user settings. Outputs include duration, sample rate, and bitrate to inform downstream mastering and delivery.

The tool's unique value lies in its simplicity, speed, and openness: no software installation, widely supported formats, and adjustable width for creative control. Use cases include voice podcasts with enhanced space, instrument demos, and game audio previews. It is suitable for freelancers, small studios, and teams seeking quick stereo proofs or final stereo exports for content pipelines.