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| Match Graph | 0 | 0 |
| Pricing | Free | Paid |
| Capabilities | 15 decomposed | 14 decomposed |
| Times Matched | 0 | 0 |
Indexes user documents (markdown, PDFs, web pages) into PostgreSQL with vector embeddings, enabling semantic search via cosine similarity matching. Uses a content processing pipeline that extracts, chunks, and embeds documents through configurable embedding models, then retrieves contextually relevant passages to augment chat responses. The search engine supports multiple content sources (local files, web URLs, Obsidian vaults) with unified indexing through database adapters.
Unique: Combines multi-source content indexing (local files, web URLs, Obsidian vaults) with PostgreSQL vector search and configurable embedding models, allowing users to maintain a unified searchable knowledge base across heterogeneous document sources without cloud dependency. Uses content processing pipeline with pluggable extractors and chunking strategies.
vs alternatives: Offers self-hosted semantic search with multi-source indexing and local embedding support, whereas Pinecone/Weaviate require cloud infrastructure and don't natively integrate with Obsidian/local file systems.
Routes chat requests through a provider-agnostic conversation pipeline that supports OpenAI (GPT), Anthropic (Claude), Google Gemini, and local LLMs (Llama, Qwen, Mistral via Ollama/LlamaCPP). The chat processor retrieves relevant context from the semantic search index, constructs a system prompt with retrieved passages, and streams responses back to clients. Implements conversation history management via Django ORM with per-user conversation threads and message persistence.
Unique: Implements provider-agnostic chat routing through a unified conversation processor that abstracts OpenAI, Anthropic, Google Gemini, and local LLM APIs, allowing seamless provider switching without application changes. Integrates semantic search context augmentation directly into the chat pipeline via system prompt injection with retrieved passages.
vs alternatives: Supports both cloud and local LLMs in a single system with automatic context augmentation from personal documents, whereas LangChain requires explicit chain composition and most chat UIs lock users into single providers.
Provides an Obsidian plugin that indexes the user's vault into Khoj's knowledge base and enables semantic search within Obsidian. The plugin watches for file changes and incrementally updates the index, supporting live synchronization of new notes. Implements bidirectional integration: users can search their vault from Khoj chat, and Khoj can suggest related notes from the vault. The plugin uses Obsidian's API for file access and the Khoj backend API for indexing and search.
Unique: Integrates Obsidian vaults directly into Khoj's knowledge base with live file watching and incremental indexing, enabling semantic search of vault notes from both Obsidian and Khoj interfaces. Uses Obsidian's native API for file access and change detection.
vs alternatives: Provides native Obsidian integration with live sync and bidirectional search, whereas most AI tools require manual vault exports or don't support Obsidian at all.
Provides an Emacs plugin that enables inline chat and search within Emacs buffers. Users can select text, ask Khoj questions about it, and receive responses inline. The plugin supports semantic search of indexed documents and integrates with Emacs' completion and buffer management systems. Implements streaming response rendering in Emacs buffers with syntax highlighting for code blocks.
Unique: Integrates Khoj chat and search directly into Emacs buffers with streaming response rendering and syntax highlighting, enabling AI interaction without leaving the editor. Uses Emacs' native buffer and completion APIs for seamless integration.
vs alternatives: Provides native Emacs integration with inline chat and streaming responses, whereas most AI tools are web-only or require external windows.
Provides Docker and Docker Compose configurations for self-hosted deployment of the full Khoj stack (backend, PostgreSQL, frontend). Includes environment-based configuration management through .env files and Django settings, supporting customization of LLM providers, embedding models, search engines, and other services. The deployment supports both development (docker-compose.yml) and production (prod.Dockerfile) configurations with Gunicorn WSGI server for production.
Unique: Provides complete Docker-based self-hosted deployment with environment-based configuration management supporting customization of LLM providers, embedding models, and external services. Includes both development and production configurations with Gunicorn WSGI server.
vs alternatives: Offers full self-hosted deployment with Docker support and environment-based configuration, whereas many AI tools are cloud-only or require complex manual setup.
Implements a content processing pipeline with pluggable extractors for different file types (PDF, markdown, HTML, plain text, Obsidian). Each extractor converts the source format to normalized text, which is then chunked and embedded. The pipeline supports custom extractors through a plugin interface, allowing users to add support for new file types. Chunking strategies are configurable (fixed size, semantic, sliding window) with metadata preservation (source, timestamp, section).
Unique: Implements content processing through pluggable extractors with configurable chunking strategies and metadata preservation, supporting multiple file types (PDF, markdown, HTML, Obsidian) through a unified pipeline. Allows custom extractors via plugin interface without modifying core.
vs alternatives: Provides pluggable content extraction with metadata preservation and configurable chunking, whereas most RAG systems use fixed extraction logic and don't support custom extractors.
Implements streaming response delivery through both HTTP Server-Sent Events (SSE) and WebSocket protocols, enabling real-time response rendering on clients. The streaming processor chunks LLM responses and sends them incrementally, reducing perceived latency and enabling progressive rendering. Supports streaming for chat responses, search results, and agent execution logs. Clients can subscribe to response streams and render content as it arrives.
Unique: Implements dual streaming protocols (SSE and WebSocket) with chunked response delivery and progressive rendering support, enabling real-time response visualization and agent execution log streaming. Integrates streaming directly into the chat and agent pipelines.
vs alternatives: Provides both SSE and WebSocket streaming with agent execution log support, whereas most chat APIs only support SSE and don't stream agent intermediate steps.
Implements an agent system that decomposes user requests into subtasks, selects appropriate tools (web search, code execution, image generation, MCP servers), and executes them in sequence with result aggregation. The agent uses the LLM to reason about tool selection via function-calling APIs (OpenAI, Anthropic native support) or prompt-based tool selection for other providers. Tool execution is sandboxed through subprocess isolation for code execution and API-based execution for external tools, with results fed back into the agent loop for iterative refinement.
Unique: Combines LLM-based agent reasoning with pluggable tool execution (web search, code execution, image generation, MCP servers) through a unified tool registry that abstracts provider-specific function-calling APIs. Uses subprocess isolation for code execution and supports both native function-calling (OpenAI, Anthropic) and prompt-based tool selection for other LLMs.
vs alternatives: Offers integrated agent execution with sandboxed code running and MCP server support in a single system, whereas LangChain agents require explicit chain composition and most frameworks don't natively support MCP or code sandboxing.
+7 more capabilities
Automatically loads and parses documents from diverse sources (PDFs, Word docs, HTML, Markdown, code files, databases) into a unified in-memory representation using format-specific loaders and node-based document abstractions. Each document is decomposed into Document objects containing metadata, content, and relationships, enabling downstream processing without format-specific handling in application code.
Unique: Provides a unified loader abstraction (BaseReader interface) that normalizes 100+ data source connectors into a single Document/Node API, eliminating format-specific branching logic in application code. Loaders are composable and chainable, allowing sequential transformations (e.g., load → split → extract metadata → embed).
vs alternatives: Broader out-of-the-box loader coverage than LangChain's document loaders and more structured node-based decomposition than raw text splitting, reducing boilerplate for multi-source RAG pipelines.
Splits documents into semantically coherent chunks using multiple strategies (character-based, token-aware, recursive, semantic) with configurable overlap and chunk size. Preserves document hierarchy and metadata through a node tree structure, enabling retrieval systems to maintain context relationships and enable hierarchical re-ranking or parent-document retrieval patterns.
Unique: Implements a node-tree abstraction that preserves document hierarchy and enables parent-document retrieval patterns. Supports multiple splitting strategies (recursive, semantic, code-aware) with pluggable custom splitters, and automatically propagates metadata through the node tree.
vs alternatives: More sophisticated than LangChain's text splitters because it preserves hierarchical relationships and supports semantic splitting; better for complex document structures than simple character-based splitting.
khoj scores higher at 41/100 vs LlamaIndex at 40/100. khoj also has a free tier, making it more accessible.
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Processes documents containing mixed content (text, images, tables, code) by extracting and understanding each modality separately, then synthesizing information across modalities. Uses vision models for image understanding, specialized parsers for tables and code, and integrates results into a unified document representation for retrieval and generation.
Unique: Integrates vision models, table parsers, and code extractors into a unified multi-modal document processing pipeline that synthesizes information across modalities. Preserves modality-specific structure (table schemas, code formatting) while enabling cross-modal retrieval and generation.
vs alternatives: More comprehensive multi-modal support than text-only RAG; built-in vision integration reduces boilerplate for document understanding compared to manual vision API calls.
Enables streaming of LLM responses token-by-token and real-time retrieval updates, allowing applications to display partial results as they become available. Supports streaming from retrieval (progressive document discovery) and generation (token-by-token output) with backpressure handling and cancellation support for responsive user experiences.
Unique: Provides first-class streaming support for both retrieval and generation with automatic backpressure handling and cancellation. Enables progressive result display without custom async/streaming code in application layer.
vs alternatives: More integrated streaming support than manual LLM API streaming; built-in retrieval streaming and backpressure handling reduce complexity compared to custom streaming implementations.
Tracks API costs for LLM calls, embeddings, and other operations with per-query and per-session cost attribution. Provides cost optimization recommendations (e.g., batch processing, model selection, caching) and enables cost-aware query planning to balance quality and expense. Integrates with multiple LLM providers to normalize cost tracking across models.
Unique: Provides automatic cost tracking across multiple LLM providers with per-query attribution and cost optimization recommendations. Integrates with query execution to enable cost-aware planning without manual cost calculation.
vs alternatives: More integrated cost tracking than manual API billing review; built-in optimization recommendations reduce guesswork for cost reduction.
Enables building custom RAG pipelines by composing modular components (retrievers, synthesizers, agents, tools) through a declarative or programmatic API. Supports complex workflows with branching, loops, and conditional logic, with automatic dependency resolution and execution optimization. Pipelines are reusable, testable, and can be deployed as APIs or batch jobs.
Unique: Provides a flexible pipeline composition API supporting both declarative and programmatic definitions, with automatic dependency resolution and execution optimization. Enables complex workflows with branching and conditional logic without custom orchestration code.
vs alternatives: More flexible pipeline composition than fixed RAG architectures; better workflow support than manual component chaining.
Generates embeddings for documents/nodes using pluggable embedding providers (OpenAI, Hugging Face, local models) and stores them in a unified vector store interface that abstracts over multiple backends (Pinecone, Weaviate, Milvus, FAISS, Chroma, etc.). The abstraction layer enables switching vector stores without changing application code, and handles batching, retry logic, and metadata indexing.
Unique: Provides a unified VectorStore interface that abstracts 10+ vector database backends, enabling zero-code switching between providers. Handles embedding batching, retry logic, and metadata propagation automatically. Supports both cloud and local embedding models through a pluggable EmbedModel interface.
vs alternatives: Broader vector store coverage and more seamless provider switching than LangChain's vectorstore integrations; better abstraction consistency across backends than using raw vector store SDKs directly.
Retrieves semantically similar documents from vector stores using embedding-based similarity search, with optional re-ranking, filtering, and fusion strategies (hybrid search combining dense and sparse retrieval). Supports multiple retrieval modes (similarity, MMR, fusion) and enables custom retrieval logic through a pluggable Retriever interface that can combine multiple strategies.
Unique: Implements a pluggable Retriever abstraction supporting multiple retrieval strategies (similarity, MMR, fusion, custom) that can be composed and chained. Built-in support for re-ranking via LLM or cross-encoder, and hybrid search combining dense and sparse retrieval without custom integration code.
vs alternatives: More flexible retrieval composition than LangChain's retrievers; built-in re-ranking and fusion strategies reduce boilerplate for advanced retrieval pipelines.
+6 more capabilities