Loft Tools
75+ browser-based tools. Files never leave your device. Free, no signup, no upload. Works offline (PWA).
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Every tool runs 100% in your browser — files never upload to a server. That makes it private by design and fast (no upload/download round-trip), and it works offline as an installable PWA. It spans 75+ tools across PDF, image, video, developer, security, and 3D/CAD/PCB file work, including a from-scratch WASM CAD engine that opens STEP, STL, DXF, Gerber and more locally — things most "free online" tools either can't do or only do by uploading your file