Bitcoin Database Generator is a free, open-source Windows tool that copies data from Bitcoin Core blockchain files into a SQL Server database. It is aimed at developers, data analysts and hobbyists who would rather explore Bitcoin records with SQL queries than write their own parser.
Before you start, note that the project has had no code updates since April 2017, so it should be treated as unmaintained. The latest release is v1.9. Its scope is narrow: it moves Bitcoin data and nothing else. That makes it a useful reference for learning how blockchain data can be organized in a relational database, as long as you test it carefully before relying on it for important work.
What Is Bitcoin Database Generator and Why Use SQL?
Bitcoin Core stores blockchain data in binary files designed for the node software, not for reporting. Bitcoin Database Generator bridges that gap by copying the data into SQL Server, where it can be queried with ordinary SQL statements.
This approach is useful when you want answers such as how many transactions a block contained, which addresses received funds over a date range, or how block sizes changed over time. Writing these queries against raw files requires custom code. Writing them against tables is familiar territory for anyone who has worked with databases.
The trade-off is setup. You need a working SQL Server instance and enough disk space for the copied data, and you need to understand the table layout before you can write accurate queries.
Who Benefits Most From Storing Blockchain Data in SQL
Database developers who want to test queries on real Bitcoin records will find the program practical. They can load blocks into a local database and experiment without affecting a live system.
Data analysts working on blockchain research may also benefit. A relational database makes it easier to join block data with outside datasets, such as exchange prices or market statistics, if those are imported separately.
Students and hobbyists learning how Bitcoin works can use the output to see the structure of blocks and transactions in a format they already understand. The program suits anyone who prefers thinking in tables over reading hexadecimal dumps.
How Blockchain Files Differ From Relational Tables
A blockchain is a chain of blocks, and each block contains a header and a list of transactions. Each transaction has inputs that reference earlier outputs and new outputs that can be spent later. Bitcoin Core stores this structure in its own format, optimized for validation and storage on disk.
A relational database organizes the same information into tables linked by keys. A blocks table can hold block hashes, heights and timestamps. A transactions table can reference the block it belongs to. Inputs and outputs can sit in their own tables, linked to the transactions that created or spent them.
This mapping is the core idea behind the program. Once the data is in tables, a join can follow a payment from one transaction to the next. That kind of tracing is difficult with raw files and much easier with SQL.
Key features
Bitcoin Core Blockchain Import
High-Performance Transfer
SQL Server Output
Free and Open Source
Supported coins
The documentation mentions Bitcoin (BTC) as the supported network. The tool is built around the Bitcoin Core blockchain, so other coins and networks are outside its scope. If you need data from a different chain, look for a tool built for that specific blockchain.
How to install Bitcoin Database Generator on Windows
- 1
Get the Program
Download the Windows build or installer only from the official website or the project's GitHub Releases page. Avoid mirrors and third-party download sites, since they can bundle modified files.
- 2
Verify the File
Compare the SHA-256 checksum of the downloaded file with the value published alongside the release, if one is provided. If the checksums do not match, delete the file and download it again from the official source.
- 3
Install on Windows
Run the installer or extract the Windows build to a folder of your choice, then follow the on-screen prompts. The listed operating system is Windows 10 Pro, so check your edition before installing.
-
Prepare Your Data Sources
Before starting a transfer, make sure you have a Bitcoin Core blockchain data directory to copy from and a reachable SQL Server instance to copy into. Create a dedicated database so the imported tables do not mix with other data.
System requirements
- Windows 10 Pro, the operating system listed for the program
- Bitcoin Core blockchain files to copy from
- A SQL Server instance with a database for the output
How to use Bitcoin Database Generator
Bitcoin Database Generator works as a transfer step between two systems. You point it at your Bitcoin Core data and at a SQL Server database, then let it copy the records. Preparing both sides first saves time and avoids partial imports.
- Make sure Bitcoin Core has finished syncing and that its blockchain data directory is complete.
- Create an empty database in SQL Server for the output, and confirm that your Windows account can connect to it.
- Start Bitcoin Database Generator and enter the path to the blockchain data directory.
- Enter the connection details for your SQL Server instance and select the target database.
- Run a small test transfer covering a limited range of blocks, then check the tables in SQL Server Management Studio or another client.
- If the test results look correct, start the full transfer and leave the program running until it finishes.
After the transfer, run a few simple queries to count blocks and transactions, and compare the numbers with what Bitcoin Core reports. Keep a backup of the database so you can repeat the analysis without copying the data again.
Pros & cons
- Free and open source, with source code available on GitHub
- Purpose-built for copying Bitcoin Core blockchain data
- Output goes to SQL Server, so standard SQL tools work with it
- Described as a high-performance data transfer tool
- Narrow scope makes it easy to understand what the program does
- No code updates since April 2017
- Windows 10 Pro is the only listed operating system
- Covers Bitcoin (BTC) only
- Requires a working SQL Server setup and some database knowledge
- Designed for bulk copying rather than tracking new blocks as they arrive
Is Bitcoin Database Generator safe?
Bitcoin Database Generator has had no code updates since April 2017, so review the risks before installing. Download the program only from the official website or the project's GitHub page, and verify the SHA-256 checksum or signature before running the file. Check the latest version on the official website, because the project has not been maintained for years.
The program does not need a wallet, private keys or a seed phrase. Never enter a seed phrase on any third-party website or in a program that asks for one during a blockchain data transfer. Run the tool against a copy of your blockchain data and a test database first, so that any unexpected behavior does not affect your main systems.
- Official source only. Download from github.com/ladimolnar/BitcoinDatabaseGenerator. Ignore ads and lookalike domains.
- Check the SHA-256. Compare the installer hash with the value the developer publishes before running it.
- Never share your seed phrase. No developer, support agent or website — including CryptApps — will ever ask for it.
Alternatives
Bitcoin Database Generator sits in a different niche from the other programs in this catalog. Its main job is to copy Bitcoin Core blockchain data into SQL Server, so the result is a set of tables you query with SQL.
Chainhook is an indexing engine for the Stacks and Bitcoin blockchains. It is aimed at developers building applications that react to on-chain events, and it handles chain reorganizations. BX is a command-line tool for Bitcoin and suits users who prefer quick terminal queries. Cshtop is a terminal visualizer for blocks, useful for watching the chain rather than storing it.
Choose Bitcoin Database Generator if you want a relational copy of the data for analysis. Choose the others if you need live indexing, quick command-line lookups or a visual view of blocks.
Specifications
- Price
- Free
- Type
- Open source
- License
- —
- Latest version
- v1.9
- Last update
- 29 Apr 2017
- Windows support
- Yes (Windows build or installer)
- Source code
- github.com/ladimolnar/BitcoinDatabaseGenerator
Frequently asked questions
Yes. The program is listed as free and open source, and its source code is published on GitHub. Because it is free, there is no license fee, but you still need Windows 10 Pro and a SQL Server instance to run the transfer.
No. The documentation describes the program as a tool for Bitcoin (BTC) and Bitcoin Core blockchain files. If you need data from other blockchains, look for a tool designed for that specific network.
It can be used safely if you take basic precautions. The project has not had code updates since 2017, so verify every download and run the tool on a test copy of your data first. The program does not need private keys or a seed phrase.
The listed requirement is Windows 10 Pro. Check your Windows edition before installing, since the program is documented for that operating system only. Other editions may work, but they are not part of the listed requirements.
No. The latest listed release is v1.9, and the project has had no code updates since April 2017. You can still use the program, but expect no bug fixes or compatibility updates, and plan for that in any long-term workflow.
It writes the copied data to a SQL Server database that you specify. You create the database beforehand and provide the connection details, so the output stays under your control in your own SQL Server environment.
Verdict
Bitcoin Database Generator for Windows suits developers, analysts and students who want Bitcoin blockchain data in SQL Server tables. It is free, open source and narrowly focused on one job. The main drawbacks are the lack of updates since 2017 and the requirement for a SQL Server setup. Use it as a learning tool or a reference, test it on a copy of your data, and check the official website for the latest version before relying on it.