ConvertMaster is an online file-conversion platform designed to make changing files between formats fast, convenient, and accessible across devices. It supports a broad range of video, image, document, and audio formats, with popular video options including MP4, AVI, MOV, MKV, WMV, and WEBM. The service emphasizes conversion quality, speed, and privacy, stating that files are encrypted during transfer and automatically deleted after conversion. Its cloud-based processing lets users convert files without relying on their device’s processing resources, while cloud storage and sharing options support access from different locations.

ConvertMaster offers batch processing, mobile-friendly tools, and plans for different needs. The free plan includes five conversions per day for files up to 100 MB. Pro adds unlimited conversions, files up to 2 GB, advanced options, and batches of up to 10 files. Business supports files up to 10 GB and unlimited batch processing, while enterprise solutions can include tailored plans, dedicated support, and API access. The platform also provides a supported-formats directory, help resources, and customer support.