FileLever - Safer folder sync, duplicate review, and storage cleanup

FileLever is a preview-first desktop app for local file workflows. It helps people compare and sync folders, use mirror mode deliberately, exclude unwanted files and folders, review exact duplicate files, and inspect large files before taking action. The core idea is simple: see every file change before you sync, clean up, or reclaim storage. Unlike tools that jump straight to execution, FileLever emphasizes review-before-action. You can compare source and target folders, understand what is new, changed, unchanged, or target-only, and then decide whether to copy/update or mirror. For cleanup workflows, FileLever keeps duplicate review and large-file review explicit so you can decide what stays, moves, archives, or gets deleted. FileLever is available now on macOS. Current macOS DMGs are code signed and notarized, and release notes plus checksums are published on GitHub Releases. Windows and Linux support is planned.