OpenFilz is a free, open-source document management API that does what legacy DMS platforms charge thousands for — and it ships with SDKs in 5 languages.
If you've ever tried to add document management to an application, you know the pain. You either bolt on a bloated enterprise platform that costs more than your entire infrastructure, or you roll your own file-upload-and-pray system that falls apart the moment someone asks for versioning, audit trails, or full-text search.
There's a third option now. It's called OpenFilz.