Free AI Data Tools
Prepare and manage data for AI training and fine-tuning
Annotation Converter
Convert between different data annotation formats (COCO, YOLO, Pascal VOC)
Data Augmentation Preview
Visualize image augmentation techniques for training data
Chat Data Formatter
Convert chat logs between ShareGPT, OpenAI, and Alpaca formats
Dataset Splitter
Split datasets into train, validation, and test sets with stratification
JSONL Converter
Convert between JSON and JSONL formats for fine-tuning comparisons
PII Detector
Identify and redact Personally Identifiable Information in datasets client-side
Synthetic Data Generator
Generate synthetic examples based on schema instructions
Training Data Formatter
Format text for various training objectives (Fill-in-middle, Next Token)
Why Use Our Free Tools?
Free & Online
Use these tools directly in your browser without installation.
Private
All processing happens locally on your device where possible.
Efficient
Optimized for speed and productivity.