Vision infrastructure to turn complex documents into LLM-ready data
See the code
Production-ready service for document layout analysis, OCR, and semantic chunking.
Convert PDFs, PPTs, Word docs & images into RAG/LLM-ready chunks.
Layout Analysis | OCR + Bounding Boxes | Structured HTML & Markdown | Vision-Language Model Processing
👉 Note: The open-source AGPL version is **different** from our fully managed Cloud API.
The open-source release uses community/open-source models, while the Cloud API runs **proprietary in-house models** for higher accuracy, speed, and enterprise reliability.
| Feature | Open Source Repo (good) | Cloud API - chunkr.ai (best) | Enterprise |
|---|---|---|---|
| Perfect for | Development & testing | Production workloads | Large-scale / High-security |
| Layout Analysis | Uses open-source models | Proprietary in-house models | In-house + custom-tuned |
| OCR Accuracy | Community OCR engines | Optimized OCR stack | Optimized + domain-tuned |
| VLM Processing | Basic open VLMs | Enhanced proprietary VLMs | Custom fine-tunes |
| Excel Support | ❌ | ✅ Native parser | ✅ Native parser |
| Document Types | PDF, PPT, Word, Images | PDF, PPT, Word, Images, Excel | PDF, PPT, Word, Images, Excel |
| Infrastructure | Self-hosted | Fully managed cloud | Managed / On-prem |
| Support | Discord community | Dedicated support | Dedicated founding team |
| Migration Support | Community-driven | Docs + email | Dedicated migration team |
The open-source release is ideal if you want transparency, local hosting, or to experiment with Chunkr’s pipeline.
For best performance, production reliability, and access to in-house models, we recommend the Chunkr Cloud API.
For high-security or regulated industries, our Enterprise edition offers on-prem or VPC deployments.
Prerequisites:
Clone the repo:
git clone https://github.com/lumina-ai-inc/chunkr
cd chunkr
# Copy the example environment file
cp .env.example .env
# Configure your llm models
cp models.example.yaml models.yaml
For more information on how to set up LLMs, see here.
# For GPU deployment:
docker compose up -d
# For CPU-only deployment:
docker compose -f compose.yaml -f compose.cpu.yaml up -d
# For Mac ARM architecture (M1, M2, M3, etc.):
docker compose -f compose.yaml -f compose.cpu.yaml -f compose.mac.yaml up -d
Access the services:
http://localhost:5173http://localhost:8000Stop the services when done:
# For GPU deployment:
docker compose down
# For CPU-only deployment:
docker compose -f compose.yaml -f compose.cpu.yaml down
# For Mac ARM architecture (M1, M2, M3, etc.):
docker compose -f compose.yaml -f compose.cpu.yaml -f compose.mac.yaml down
Chunkr supports two ways to configure LLMs:
For more flexible configuration with multiple models, default/fallback options, and rate limits:
cp models.example.yaml models.yaml
models:
- id: gpt-4o
model: gpt-4o
provider_url: https://api.openai.com/v1/chat/completions
api_key: "your_openai_api_key_here"
default: true
rate-limit: 200 # requests per minute - optional
Benefits of using models.yaml:
Read the
models.example.yamlfile for more information on the available options.
You can use any OpenAI API compatible endpoint by setting the following variables in your .env file:
LLM__KEY:
LLM__MODEL:
LLM__URL:
Below is a table of common LLM providers and their configuration details to get you started:
| Provider | API URL | Documentation |
|---|---|---|
| OpenAI | https://api.openai.com/v1/chat/completions | OpenAI Docs |
| Google AI Studio | https://generativelanguage.googleapis.com/v1beta/openai/chat/completions | Google AI Docs |
| OpenRouter | https://openrouter.ai/api/v1/chat/completions | OpenRouter Models |
| Self-Hosted | http://localhost:8000/v1 | VLLM or Ollama |
The core of this project is dual-licensed:
To use Chunkr without complying with the AGPL-3.0 license terms you can contact us or visit our website.
(top 24 of 42)
5,109 followers · starred Feb 2025
72 followers · starred Jul 2025
2,020 followers · starred Jun 2026
768 followers · starred Oct 2024
Vision infrastructure to turn complex documents into LLM-ready data
See the code
Production-ready service for document layout analysis, OCR, and semantic chunking.
Convert PDFs, PPTs, Word docs & images into RAG/LLM-ready chunks.
Layout Analysis | OCR + Bounding Boxes | Structured HTML & Markdown | Vision-Language Model Processing
👉 Note: The open-source AGPL version is **different** from our fully managed Cloud API.
The open-source release uses community/open-source models, while the Cloud API runs **proprietary in-house models** for higher accuracy, speed, and enterprise reliability.
| Feature | Open Source Repo (good) | Cloud API - chunkr.ai (best) | Enterprise |
|---|---|---|---|
| Perfect for | Development & testing | Production workloads | Large-scale / High-security |
| Layout Analysis | Uses open-source models | Proprietary in-house models | In-house + custom-tuned |
| OCR Accuracy | Community OCR engines | Optimized OCR stack | Optimized + domain-tuned |
| VLM Processing | Basic open VLMs | Enhanced proprietary VLMs | Custom fine-tunes |
| Excel Support | ❌ | ✅ Native parser | ✅ Native parser |
| Document Types | PDF, PPT, Word, Images | PDF, PPT, Word, Images, Excel | PDF, PPT, Word, Images, Excel |
| Infrastructure | Self-hosted | Fully managed cloud | Managed / On-prem |
| Support | Discord community | Dedicated support | Dedicated founding team |
| Migration Support | Community-driven | Docs + email | Dedicated migration team |
The open-source release is ideal if you want transparency, local hosting, or to experiment with Chunkr’s pipeline.
For best performance, production reliability, and access to in-house models, we recommend the Chunkr Cloud API.
For high-security or regulated industries, our Enterprise edition offers on-prem or VPC deployments.
Prerequisites:
Clone the repo:
git clone https://github.com/lumina-ai-inc/chunkr
cd chunkr
# Copy the example environment file
cp .env.example .env
# Configure your llm models
cp models.example.yaml models.yaml
For more information on how to set up LLMs, see here.
# For GPU deployment:
docker compose up -d
# For CPU-only deployment:
docker compose -f compose.yaml -f compose.cpu.yaml up -d
# For Mac ARM architecture (M1, M2, M3, etc.):
docker compose -f compose.yaml -f compose.cpu.yaml -f compose.mac.yaml up -d
Access the services:
http://localhost:5173http://localhost:8000Stop the services when done:
# For GPU deployment:
docker compose down
# For CPU-only deployment:
docker compose -f compose.yaml -f compose.cpu.yaml down
# For Mac ARM architecture (M1, M2, M3, etc.):
docker compose -f compose.yaml -f compose.cpu.yaml -f compose.mac.yaml down
Chunkr supports two ways to configure LLMs:
For more flexible configuration with multiple models, default/fallback options, and rate limits:
cp models.example.yaml models.yaml
models:
- id: gpt-4o
model: gpt-4o
provider_url: https://api.openai.com/v1/chat/completions
api_key: "your_openai_api_key_here"
default: true
rate-limit: 200 # requests per minute - optional
Benefits of using models.yaml:
Read the
models.example.yamlfile for more information on the available options.
You can use any OpenAI API compatible endpoint by setting the following variables in your .env file:
LLM__KEY:
LLM__MODEL:
LLM__URL:
Below is a table of common LLM providers and their configuration details to get you started:
| Provider | API URL | Documentation |
|---|---|---|
| OpenAI | https://api.openai.com/v1/chat/completions | OpenAI Docs |
| Google AI Studio | https://generativelanguage.googleapis.com/v1beta/openai/chat/completions | Google AI Docs |
| OpenRouter | https://openrouter.ai/api/v1/chat/completions | OpenRouter Models |
| Self-Hosted | http://localhost:8000/v1 | VLLM or Ollama |
The core of this project is dual-licensed:
To use Chunkr without complying with the AGPL-3.0 license terms you can contact us or visit our website.
(top 24 of 42)
5,109 followers · starred Feb 2025
72 followers · starred Jul 2025
2,020 followers · starred Jun 2026
768 followers · starred Oct 2024