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AI · alternatives · 2026

NL

24 alternatives to Natural Language to SQL "Text-to-SQL" API

Hi HN- Today, we are releasing the hosted API for our natural language to SQL engine, which allows you to: (1) Explain Your Data: Feed in dictionaries, dbt, schemas, Confluence docs - we'll understand the business context to your data. (2) Train Your AI: Fine-tune an LLM (including GPT-4) specifically for your data, increasing accuracy and lowering latency (3) Trust the Answer: See confidence scores with each AI-generated query, stay in control. (4) Conduct complex SQL queries Problem background - Developers struggle to build NL-to-SQL into products because LLMs do not work out-of-the-box;…

A hosted API that converts natural language questions into SQL queries. Users can provide data schemas, documentation, and business context, which the service uses to fine-tune language models for improved accuracy and… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Natural Language to SQL "Text-to-SQL" API launched in 2024; newer entries below may have overtaken it.

  1. 1

    Embed NL-to-SQL into your product

    2024 · its alternatives →

  2. 2

    Hi HN community. We are excited to open source Dataherald’s natural-language-to-SQL engine today (https://github.com/Dataherald/dataherald). This engine allows you to set up an API from your structured database that can answer questions in plain English. GPT-4 class LLMs have gotten remarkably good at writing SQL. However, out-of-the-box LLMs and existing frameworks would not work with our own structured data at a necessary quality level. For example, given the question “what was the average rent in Los Angeles in May 2023?” a reasonable human would either assume the…

    2023 · github.com · its alternatives →

  3. 3

    Long story short: We (Dataherald) just open-sourced our entire codebase, including the core engine, the clients that interact with it and the backend application layer for authentication and RBAC. You can now use the full solution to build text-to-SQL into your product. The Problem: modern LLMs write syntactically correct SQL, but they struggle with real-world relational data. This is because real world data and schema is messy, natural language can often be ambiguous and LLMs are not trained on your specific dataset. Solution: The core NL-to-SQL engine in Dataherald is an LLM based agent…

    2024 · github.com · its alternatives →

  4. 4

    Would love thoughts! Here is the HF page: https://huggingface.co/chatdb/natural-sql-7b

    2024 · github.com · its alternatives →

  5. 5

    Converse with your data in natural language

    2023 · ai2sql.io · its alternatives →

  6. 6

    Convert natural language to sql queries

    2023 · its alternatives →

  7. 7

    Turn plain language into powerful database queries

    2025 · text2query.com · its alternatives →

  8. 8

    inferring sql queries from plain-text questions about tables - paulfitz/mlsql

    2019 · github.com · its alternatives →

  9. 9DS

    I played around with GPT-3 to build this demo. Select a public BigQuery dataset and describe your query in natural English, then edit the generated SQL as needed and execute it. https://app.tabbydata.com/sql-assistant-demo

    2021 · its alternatives →

  10. 10

    Turn everyday language into SQL queries

    2025 · its alternatives →

  11. 11AA
  12. 12

    Natural language API using Google machine learning

    2016 · cloud.google.com · its alternatives →

  13. 13

    A repository that contains models, datasets, and fine-tuning techniques for DB-GPT, with the purpose of enhancing model performance in Text-to-SQL - eosphoros-ai/DB-GPT-Hub

    2023 · github.com · its alternatives →

  14. 14

    Turn English into secure, complex SQL queries instantly.

    Dec 2025 · rapidapi.com · its alternatives →

  15. 15

    sql, data, analytics, database, query, syntax, translation

    2023 · askai.free · its alternatives →

  16. 16

    Generate SQL directly in your browser with help of AI

    2022 · chromewebstore.google.com · its alternatives →

  17. 17AN
  18. 18

    Generate SQL with AI for business and data teams

    2023 · its alternatives →

  19. 19

    AI SQL builder that speaks your language.

    Oct 2025 · npmjs.com · its alternatives →

  20. 20

    Hey there HN! We've just open-sourced Vanna – a Python package that allows you to transform questions into SQL. We've leveraged LLMs to enable you to "ask" databases what you need, bypassing the need to "write" complex SQL. Quick Overview: - "Train" using DDL statements, documentation, or known correct SQL statements. - "Ask" questions in natural language and receive SQL, tables, and charts in return. - Open Source Flexibility: Swap storage mechanisms, customize LLMs, and choose your databases. - Local or Hosted: Operate everything locally or use our hosted version for free (including…

    2023 · vanna.ai · its alternatives →

  21. 21

    Write SQL queries in natural language

    2023 · its alternatives →

  22. 22

    open-source agentic AI data assistant for the next generation of AI + Data products. - eosphoros-ai/DB-GPT

    2023 · github.com · its alternatives →

  23. 23

    Text to SQL query converter (no code API setup 4 your data)

    2021 · nlsql.com · its alternatives →

  24. 24
    ChatDB▲25

    Chat database in Natural Language

    2025 · chatdb.live · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →