Built for people who share
documents that matter
Supermark is an open-source document sharing platform that gives you analytics without surveillance, security without lock-in, and transparency without compromise.
Currently in closed beta · Invite code required
· Building deliberately with the right people
No credit card required · 2-minute setup · Free self-hosted deployment
Why Supermark Exists
Document sharing tools either treat you like a product or a transaction. We built Supermark because we believe sharing should be transparent, sovereign, and aligned with your values.
Every line of code is public. You can audit our security, verify our privacy claims, and deploy your own instance. We're not asking you to trust us—we're showing you exactly how we work. Licensed under AGPL-3.0.
Fork it. Audit it. Own it.
We run on fly.io because it gives us sovereignty, but you can run Supermark anywhere—your own servers, your preferred cloud, even localhost. Your infrastructure choices matter. We don't lock you in.
Your data, your servers, your control.
This closed beta isn't about limiting access—it's about finding aligned people who want to build together. Super Family members aren't just users; they're co-creators who help shape what this becomes.
Your feedback shapes the product.
Share a document. See who viewed it, how long they spent, which sections they read. Get signatures when you need them. No tricks, no hidden features, no dark patterns. Just clear tools for sharing important documents.
Analytics without surveillance.
Simple, Transparent Pricing
One-time fee per company, for the lifetime of your company.
Why Supermark?
Everything you need for professional document sharing and signing.
- • AGPL-3.0 licensed - truly open
- • No paygated features ever
- • All features available to everyone
- • Custom branding
- • NDA agreements
- • Advanced analytics
- • Unlimited users and documents
- • Sliding scale based on organization type
- • Free for self-hosted deployments
Better Together
Supermark integrates seamlessly with the entire Super Family ecosystem. Connect your document workflows with signatures, forms, and scheduling.
Supersign
E-Signatures Without Per-Envelope Fees
PKI-compliant digital signatures with cryptographic proof. No $0.50-$2.00 per signature.
Sign documents shared via Supermark with full audit trails
Superforms
AI-Powered Form Builder
Claude AI builds forms with validation. No per-submission pricing.
Collect information before sharing proposals or contracts
Supercal
Calendar Scheduling
Privacy-first Calendly alternative with flat pricing. No $16-$20 per user/month.
Schedule follow-up meetings after document reviews
On the Horizon
Superhelp
Knowledge Base & Documentation
Integrated help system that lives alongside your shared documents. Context-aware documentation exactly when people need it.
Reserved for future integration - documentation space for FUT-244
Security Through Ownership
Choose the deployment model that fits your security requirements.
Join the Super Family
We're looking for aligned people, not just users. This closed beta is invitation-only because we're being intentional about who we build with in these early days.
- Unlimited team members
- Unlimited documents
- Unlimited data rooms
- Custom branding (logo, colors, welcome message)
- Custom domains
- Advanced link controls (expiration, passwords, emails)
- NDA agreements and e-signatures
- Document analytics and visitor tracking
- Webhooks and API access
- Custom fields and tags
- Link presets
- Self-hosted deployment
- Full data ownership
- No vendor lock-in (AGPL-3.0 licensed)
Questions? Visit our GitHub repository or join the community discussions.
GitHub Repository →