| What it does | Micro-frontend architecture framework for composing web applications
| Convert JSON to TOON format and reduce LLM token costs
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| Stage | Not given
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| Pricing model | Open source
| Free
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| Pricing | Not given
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| Key features | - Typed host and hostee SDKs for building and embedding features
- CLI for initialization, building, and development with feature.config.*
- Dev server with debug UI for inspecting host/hostee message traffic
- Multiple display modes: embedded, dialog, popup, standalone
- Contract declaration with message validation and schema enforcement
- Optional encryption with v3 and v4 protocols
- Framework-agnostic with support for React, Vue, Angular, vanilla JS
- Lifecycle management with open/close and ready state handling
- Message broker with typed routing and validation
| - Converts JSON to TOON format with token savings of 30-60%
- Local browser processing with no server data upload
- Human-readable output maintaining clarity
- Token savings statistics and reporting
- Support for deeply nested objects and repetitive keys optimization
- Automatic JSON validation
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| What makes it different | - Zero runtime dependencies and self-contained feature packages require no transitive install burden
- Modernize without a rewrite by composing existing applications of any age
- Contract-based type safety with handshake validation and fail-closed security
- Production-ready static file server with optional encryption and message inspection
| - Token-optimized format designed specifically for LLMs unlike generic JSON
- Resilient fault tolerance compared to strict JSON syntax requirements
- Direct monthly cost reduction of up to 50% for high-volume LLM applications
- Complete client-side processing ensuring maximum data privacy
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 14 ● no change since last check |
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| Trust Flow (Majestic) | 5 | 3 |
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| Citation Flow (Majestic) | 21 | 13 |
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| Referring domains (Majestic) | 9 | 13 |
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HyperFrontend