Best of 2026
Best open-source File Storage & Sharing apps
The 5 highest-scoring open-source File Storage & Sharing apps on AppFinder, each with the facts behind its position.
Positions come from our organic score, led by people: community upvotes, visitor ratings and feedback, then how complete the listing is and how recently it was updated. Verification, Pro plans, team ratings and advertising are not inputs, and nothing paid can add an upvote. How ranking works
At a glance
- Ranked here
- 5
- Apps in File Storage & Sharing
- 8
- With a free plan
- 5 of 5
Top 5 open-source File Storage & Sharing apps
Ranked by organic score: upvotes and ratings from people. Payment never changes this order.How ranking works
Position 1
Why it’s here
- Includes Public API, Hosting & deployments, Online payments and 5 more
- Integrates with Slack, Stripe and Zapier
- Open source
Visit site: Documenso (opens in a new tab)Sign in to upvote Documenso. It's free, and each account gets one upvote per app.
Sign in to votePosition 2
The PDF Toolkit built for privacy
Why it’s here
- Includes Certificates, Offline mode, Forms & surveys and 3 more
- Open source
Position 3
Share files without the cloud. Fast, private, offline
Why it’s here
- Includes End-to-end encryption, Offline mode, File sharing and 1 more
- Open source
- Available on macOS, Windows, Linux, iOS and Android
Position 4
Seal the Deal, Openly. Welcome to OpenSign™
Why it’s here
- Includes Public API, Certificates and End-to-end encryption
- Open source
Position 5
Turn your paper chaos into a calm, searchable archive
Why it’s here
- Includes Public API, Hosting & deployments, Online payments and 2 more
- Open source