Fernwork — Free, Private, Browser-Based Productivity Tools

Fernwork is a free suite of in-browser productivity tools. Edit and OCR PDFs, convert images, video, audio, documents and spreadsheets, view and edit DXF drawings, IFC building models, STL 3D meshes, DOCX, ODT, RTF, PPTX, XLSX, ODS, CSV, JSON, Markdown and SQLite files, generate hashes, JWTs, QR codes, passwords and UUIDs, format JSON, diff text, test regular expressions, convert units, calculate expressions, plot functions, pick colors and edit drawings. Everything runs locally in your browser — no upload, no backend, no tracking, no sign-up.