Ditto
P2P Platform
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Details
License Proprietary/Closed source (SDKs open source under Apache 2.0)
Dev Status 🟢 Active
Dev Status Detail Released (production, v4.9+ current)
Owner Adam Fish (CEO) & Max Alexander (CPO) / Ditto (company)
Country USA (San Francisco, California)
Start Year 2018
Stack Rust (core engine), C/C++, Swift, Kotlin, JavaScript/TypeScript, React Native, Flutter
Funding VC (multiple rounds)
Last Investigated Mar 9, 2026
P2P Platform Attributes
Origins Database / Edge sync platform (SDK for developers)
Database Embedded CRDT database (custom CRDTs for JSON documents; each device maintains local Ditto store)
Query Language DQL (Ditto Query Language) — SQL-like syntax for queries, filters, sorting, transactions
Data Formats JSON (document-based storage)
Collaborative Live Editing Supported (real-time sync with CRDT conflict resolution; multi-writer collaboration with deterministic conflict resolution)
Rich Text Editing N/A (application-level feature; Ditto is an infrastructure SDK)
Mobile Support Yes (iOS and Android native SDKs)
Web Support Yes (JavaScript SDK; web browsers connect via Big Peer WebSocket due to limited browser P2P capabilities)
Native Apps Yes (embedded in developer apps via SDK; supports Swift, Kotlin, C++, React Native, Flutter, .NET)
Terms Commercial licensing (Big Peer SaaS + self-hosted BYOC options) + Free SDK trial (Online Playground for testing)
Funds $136M total ($9M seed 2021, $45M Series A 2023, $82M Series B 2025)
Based On Original platform (concepts from Realm mobile database experience; custom CRDT engine)
P2P Architecture P2P mesh network (Bluetooth LE, P2P WiFi, LAN) with automatic peer discovery + optional Big Peer (cloud server); multiplexer intelligently switches between transport types without data duplication
Development Tools SDKs (Swift, Kotlin, React Native, Flutter, JS/TS, C++, .NET), DQL query language, HTTP API (RPC-based for Big Peer operations), real-time reactive subscriptions, TransportConfig API for mesh customization, Peer Metadata API for mesh visibility
Deployment Options Small Peer (embedded SDK in apps running on end-user devices) + Big Peer (cloud SaaS or BYOC Kubernetes on-premises deployment); Online Playground for development/testing; AWS Marketplace deployment available
Authentication & Identity OAuth 2.0, JWT, SAML (bring your own identity provider); peer-to-peer authentication via digital identities; Online Playground identity for testing; capability-based access control permissions
Storage Model Embedded local CRDT database on each device (offline-first; reads/writes always available locally) + optional Big Peer cloud sync; delta-based sync (only changes transferred); causal consistency model
Interoperability MongoDB Connector (bidirectional sync between MongoDB Atlas and Big Peer), Apache Kafka integration (Change Data Capture for streaming to external analytics), HTTP API for external system integration, object storage connectors
Social Graph No (infrastructure/database SDK, not a social networking platform; no built-in social graph)