Paperless-ngx

Best for: anyone drowning in paper records who wants a searchable digital archive running on hardware they own.

Paperless-ngx is a community-supported document management system that scans, indexes and archives documents into a searchable online library. It is the official successor to the original Paperless and Paperless-ng projects, deliberately maintained by a team rather than a single person so the project survives individual maintainers moving on. Built with Django and Angular.

What makes it useful: OCR makes scanned documents fully searchable, so tax records, invoices and contracts become findable by their contents rather than by whatever you remembered to name the file. For a solopreneur handling their own bookkeeping, that turns a filing cabinet into a search box — and because it self-hosts, financial paperwork never goes to a third party.

Where it falls short: it needs a server that stays on, plus real setup effort — Docker, storage planning and a document scanner that fits your workflow. OCR accuracy varies with scan quality. The GPL v3 license matters if you intend to redistribute a modified version commercially.

Details: Python and Django, GPL 3.0. A live demo is available.