Solc BIN is a free, open-source repository from the Ethereum project that stores current and historical builds of the Solidity compiler, known as solc. It is aimed at smart contract developers and teams who need a specific compiler version on Windows, whether to match an existing contract or to rebuild an older one. The repository was last updated on October 30, 2026.
Because contracts are compiled with a particular solc release, access to past versions matters as much as having the latest one. Solc BIN gives you a single place to find those builds, and Windows builds are published there as well; check the releases to confirm the file you need. This page covers what the repository offers, how to get a build, and how to verify it before you run it.
What Solc BIN Is and Who Uses It
Solidity is the most widely used language for writing Ethereum smart contracts. The solc compiler turns Solidity source code into EVM bytecode and an ABI, which is the interface other software uses to call a contract. Solc BIN is simply where many of those compiler builds are stored, so you can fetch the one you need instead of guessing.
The typical users are developers who maintain contracts over time. A team may have a contract written years ago that must be recompiled for an audit or a small fix. Someone testing old code may need the exact compiler that produced a known result. Build scripts in continuous integration also benefit from pinning a version so that every run produces the same output.
Solc BIN is not an editor or a testing framework. It supplies the compiler file, and the rest of your workflow decides how that file is used.
Why Compiler Versions Matter for Smart Contracts
Solidity changes between releases, and a small change in the compiler can alter the bytecode it produces. For a deployed contract, that can matter when you want to confirm that a local build matches what is already on the network. Pinning a version gives you a stable baseline.
Each Solidity file declares a pragma line that states which compiler versions are allowed. Reading that line tells you the acceptable range, and picking a build inside it is the first practical step. When a project grows, developers often record the exact version used for each release so future builds can match it.
This is why historical builds are valuable. They let you reproduce past results without rewriting code to satisfy a newer compiler, which can be a larger job than the original change.
Key features
Current and Historical Builds
Windows Builds in the Releases
Documented Repository Structure
Supported coins
Solc BIN does not cover blockchain networks or tokens. Its scope is compiler versions, so the practical question is which solc release matches the pragma line in your Solidity source files.
How to install Solc BIN on Windows
- 1
Open the Official Repository
Go to the ethereum/solc-bin repository on GitHub. Download only from the official website or the repository on GitHub, and avoid mirrors or files shared in forums or chat groups.
- 2
Find the Windows Build
Read the repository documentation to understand its folder layout, then locate the Windows build for the version your project uses. If a version is missing from the listing, check the releases page instead of guessing a file name.
-
Verify and Place the File
Compare the file's SHA-256 checksum with the value published alongside it when one is available. Then place the executable in a folder you control and add that folder to your PATH, or point your build tool to the file directly.
How to use Solc BIN
Most developers use Solc BIN for one task: getting the exact compiler version a project needs. The steps below show a typical workflow on Windows.
- Read the pragma line at the top of your Solidity files to see which compiler versions are allowed.
- Choose a build from the repository that falls within that range, preferably the one your project was last built with.
- Verify the checksum of the downloaded file before running it.
- Open Command Prompt or PowerShell and run the binary with --version to confirm it starts and reports the expected release.
- Point your build tool or script at this binary, or keep it next to older builds in a folder organized by version.
- Compile a small test contract and compare the output with a known result before relying on the build for real work.
Pros & cons
- Free and open source, with the source code hosted on GitHub
- Keeps current and historical solc builds in one place
- Useful for reproducing older contract builds with the same compiler
- Windows builds are published as part of the repository
- It is a repository of compiler files, not a graphical application
- There is no installer, so you manage files and PATH yourself
- Windows availability should be confirmed for each version in the releases
- Best suited to users already comfortable with Solidity and the command line
Is Solc BIN safe?
Solc BIN is not a wallet or a service that handles funds, but compiler binaries run on your machine and affect the bytecode you deploy. Get them only from the official GitHub repository, not from third-party download sites. Where a SHA-256 checksum or signature is published, verify it before running the file. When reproducing a contract, compare the compiled output against a build you already trust. The project is not marked deprecated and its last code update is recent, but that does not replace your own checks. Keep antivirus and Windows updates enabled, and never enter a seed phrase or private key into any site or tool that asks for one.
- Official source only. Download from github.com/ethereum/solc-bin. 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
Solc BIN is a source of compiler binaries, not a development environment. Solidity itself is the compiler you actually build with, and Solc BIN is where many of its builds are stored. Remix Desktop is an IDE that bundles compilation with editing and deployment, which suits people who want everything in one window. Foundry is a toolchain with its own command-line workflow, so it is a better comparison when you want a complete setup in the terminal. Visual Studio Code with Solidity extensions works well if you prefer an editor you already know. Choose Solc BIN when you need a precise compiler version on disk.
Specifications
- Price
- Free
- Type
- Open source
- License
- —
- Latest version
- —
- Last update
- 30 Oct 2026
- Windows support
- Likely (builds for Windows; check releases)
- Source code
- github.com/ethereum/solc-bin
Frequently asked questions
Yes. Solc BIN is listed as free and open source, and its source code is hosted on GitHub. You do not pay to download builds from the repository. Review the repository itself for any license details before you redistribute files to others.
It is safe when you get the files from the official GitHub repository and verify them. Confirm the SHA-256 checksum where it is published, and avoid third-party mirrors. A matching checksum shows the file is unchanged, not that the code is free of bugs, so keep your system updated.
Solc BIN is used to obtain specific builds of the Solidity compiler, solc. Developers rely on it when a project needs an exact version, such as rebuilding an older contract or keeping a team on one release. It stores current and historical builds for exactly that purpose.
No. It is a repository of compiler files, so you use them through the command line or through your build tools. If you want an editor with built-in compilation, Remix Desktop or an editor with Solidity extensions may suit you better.
Look at the pragma line at the top of your Solidity files, which states the allowed version range. Pick a build inside that range, ideally the one used to build the contract before. Matching the version helps keep bytecode output consistent between builds.
Builds for Windows are published in the repository, but availability can differ by version. Open the releases list and confirm the file for the version you need before downloading. If a file is missing for that version, choose a nearby release only after testing it on your project.
Verdict
Solc BIN is a practical choice for developers on Windows who need an exact Solidity compiler version, and it is free and open source. It is not an IDE, so it works best alongside an editor or a toolchain such as Foundry. Beginners who need a complete environment may prefer Remix Desktop, while teams maintaining older contracts will find the historical builds most useful. Check the latest version on the official website before any production release.