klovis 0.6.1

Data preprocessing library for Retrieval-Augmented Generation (RAG) systems.

The framework for unified document processing pipelines.

Klovis is a modular framework for loading, cleaning, chunking and transforming heterogeneous documents for Retrieval-Augmented Generation pipelines. It provides consistent abstractions and production-ready components so that developers can build robust data ingestion workflows without dealing with low-level parsing or text normalization details.

pip install klovis

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Documentation:

• Official documentation: incoming
• API reference: incoming

Discussions: Community channels will be published soon.

Why use Klovis?

Klovis provides a structured approach to transforming unstructured data into RAG-ready chunks. It helps developers build reliable preprocessing pipelines using standardized modules for each stage of document handling.

Use Klovis for:

• Consistent document ingestion. Load text, HTML, JSON, PDF, or an entire directory tree using a unified API. Integrations preserve metadata and ensure predictable output formats across sources.
• Robust text cleaning. Apply standardized cleaning pipelines including HTML stripping, Unicode normalization, emoji removal, and whitespace correction. Each cleaner is modular and composable.
• Flexible chunking strategies. Split documents using Markdown headings, character windows, paragraphs or other strategies. Merge chunks intelligently while respecting size constraints.
• Structured transformations. Convert processed chunks into Markdown or custom output structures for storage, indexing or model ingestion.
• Extensibility. Every module in Klovis inherits from a base abstraction, allowing developers to extend or replace behaviors with minimal friction.
• Reproducible pipelines. Implement deterministic preprocessing flows that remain stable across formats and document structures.

Klovis ecosystem

Although Klovis can be used as a standalone preprocessing framework, it integrates naturally with downstream components in a RAG workflow.

Pair Klovis with:

• Vector databases such as FAISS, Weaviate or Chroma for chunk storage.
• Embedding models for encoding processed text.
• LLM frameworks for querying indexed content.
• Orchestration tools for pipeline automation.

Klovis focuses exclusively on document ingestion, empowering other layers of the stack with clean, structured and consistent input.

Installation

pip install klovis

Or with Poetry:

poetry add klovis

Quick Start

from klovis.loaders import DirectoryLoader
from klovis.cleaning import HTMLCleaner, TextCleaner
from klovis.chunking import MarkdownChunker
from klovis.transforming import MarkdownTransformer

loader = DirectoryLoader(path="data/", recursive=True)
documents = loader.load()

cleaner = HTMLCleaner()
documents = cleaner.clean(documents)

chunker = MarkdownChunker(max_chunk_size=1200)
chunks = chunker.chunk(documents)

transformer = MarkdownTransformer()
output = transformer.transform(chunks)

Project structure

klovis/
    base/                 Base interfaces for loaders, cleaners, chunkers, transformers
    loaders/              Format-specific document loaders
    cleaning/             Cleaning and normalization utilities
    chunking/             Document chunking strategies
    transforming/         Output formatting and transformation modules
    models/               Core data structures for documents and chunks
    utils/                Logging and shared helpers
    tests/                Test suite

Running tests

pytest

Contributing

Contributions are welcome. To contribute:

1. Fork the repository.
2. Create a feature branch.
3. Implement your changes and update or add tests.
4. Submit a pull request with a clear explanation of the modification.

License

This project is released under the MIT License.