| 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
| - C2PA Manifest Viewer - inspect manifest store, claim, assertions, ingredients and raw JSON
- C2PA Metadata Inspector - read signer, source disclosure, counts, identifiers and checksum in structured table
- C2PA URL Checker - inspect remote image, video, audio or PDF provenance from public URL
- C2PA PDF Checker - check Content Credentials in PDF files and review signature validation evidence
- Local browser inspection via WebAssembly - no file uploads
- Supports JPEG, PNG, WebP, AVIF, HEIC, HEIF, SVG, MP4, MOV, MP3, WAV and PDF files up to 200 MB
- Cryptographic verification state with signer and issuer information
- Provenance timeline with recorded actions and ingredient references
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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
| - Files never leave your device - all inspection runs locally in your browser
- Independent tool not affiliated with or endorsed by the Coalition for Content Provenance and Authenticity
- Reports evidence not verdicts - no authenticity percentages or false claims
- Multiple inspection views for different user needs and expertise levels
- Privacy-focused with non-sensitive usage metrics only via Google Analytics
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HyperFrontend
C2PA Lab