Synthetic Data Generation LLM Tools

Tools for generating synthetic datasets and training data for LLMs through various methods (QA pairs, tabular data, code, structured extraction). Does NOT include general data processing, data augmentation for images, or dataset annotation/curation platforms.

There are 29 synthetic data generation tools tracked. 2 score above 50 (established tier). The highest-rated is InternScience/GraphGen at 56/100 with 978 stars. 1 of the top 10 are actively maintained.

Get all 29 projects as JSON

curl "https://pt-edge.onrender.com/api/v1/datasets/quality?domain=llm-tools&subcategory=synthetic-data-generation&limit=20"

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#	Tool	Score	Tier	Stars	Language
1	InternScience/GraphGen GraphGen: Enhancing Supervised Fine-Tuning for LLMs with Knowledge-Driven...	56	Established	978	Python
2	timothepearce/synda A CLI for generating synthetic data	52	Established	43	Python
3	rasinmuhammed/misata High-performance open-source synthetic data engine. Uses LLMs for schema...	48	Emerging	52	Python
4	ziegler-ingo/CRAFT [TACL, EMNLP 2025 Oral] Code, datasets, and checkpoints for the paper "CRAFT...	46	Emerging	34	Python
5	ZhuLinsen/FastDatasets A powerful tool for creating high-quality training datasets for Large...	45	Emerging	183	Python
6	BatsResearch/bonito A lightweight library for generating synthetic instruction tuning datasets...	43	Emerging	823	Python
7	asaparov/prontoqa Synthetic question-answering dataset to formally analyze the...	41	Emerging	156	Python
8	Oqura-ai/deepresearch-datagen-cli Using deep research workflow to generate datasets for finetuning LLMs.	38	Emerging	39	Python
9	nalinrajendran/synthetic-LLM-QA-dataset-generator Create synthetic datasets for training and testing Language Learning Models...	37	Emerging	54	Python
10	Itachi-Uchiha581/Auto-Data Auto Data is a library designed for quick and effortless creation of...	36	Emerging	106	Python
11	Alannikos/edg4llm A unified tool to generate fine-tuning datasets for LLMs, including...	36	Emerging	62	Python
12	GURPREETKAURJETHRA/Synthetic-Data-Generation-using-LLM Synthetic Data Generation using LLM via Argilla, Distilabel, ChatGPT, etc.	34	Emerging	5	Jupyter Notebook
13	kevinscaria/TarGEN Targeted Data Generation with Large Language Models	34	Emerging	19	Jupyter Notebook
14	Glavin001/Data2AITextbook 🚀 Automatically convert unstructured data into a high-quality 'textbook'...	33	Emerging	25	Jupyter Notebook
15	copyleftdev/faux-foundry FauxFoundry - Synthetic data generation powered by local LLMs	31	Emerging	2	Go
16	jehumtine/synthetic_data_generator This script is designed to convert bodies of text into a question and answer...	27	Experimental	24	Python
17	jqwangai/SynPT An Improved Data Synthesis Method Driven by Large Language Models for...	24	Experimental	3	Python
18	dmeldrum6/synthetic-dataset Web based tool for generating Q&A datasets from an LLM	22	Experimental	—	HTML
19	Pro-GenAI/DataClassifier An AI-driven approach to Label LLM Training Data	22	Experimental	4	Python
20	yzhan238/TELEClass The source code used for paper "TELEClass: Taxonomy Enrichment and...	22	Experimental	25	Python
21	MelNajkar/llm-data-augmentation-sentiment LLM-based synthetic data generation for improving sentiment classification...	21	Experimental	—	Jupyter Notebook
22	danmurf/datakeg Brew synthetic training data from your documentation using LLMs	21	Experimental	—	Go
23	Red1998/faux-foundry 🤖 Generate unique synthetic datasets effortlessly with FauxFoundry, using...	21	Experimental	—	Go
24	tiddly-gittly/TiddlyWiki-LLM-dataset WikiText syntax dataset generation pipeline and open dataset for auto UI...	19	Experimental	3	TypeScript
25	CartographerLabs/Lights-Camera-Extremism A Social Network Synthetic Dataset Generation Framework	19	Experimental	3	Python
26	ScottishCoder/AuldLangSynth AuldLangSynth is an open-source data-centric language synthesis platform...	17	Experimental	—	JavaScript
27	Ki-Seki/autotab Automatically fill in missing values in tabular data using in-context...	17	Experimental	1	Python
28	pezzos/jsonl_dataset_generator Generate rich JSONL datasets from topics to fine-tune Large Language Models....	15	Experimental	—	JavaScript
29	Chessperson/multiomics-synth R synthpop for proteomics/metabolomics cohorts (your 30 cohorts, 6k+ cols)....	14	Experimental	—	R

Comparisons in this category

synthetic-LLM-QA-dataset-generator and synthetic-dataset (37 vs 22)