SolScript vs Anchor: Solidity vs Rust for Solana

SolScript and Anchor are both tools for building Solana programs. SolScript uses Solidity syntax and compiles to Anchor/Rust code. Anchor is the native Rust framework. Here's how they compare.

Key Takeaways

  • SolScript is best for Ethereum developers who want to build on Solana using familiar Solidity syntax.
  • Anchor is best for Rust developers who want full control over their Solana programs.
  • SolScript generates Anchor code, so the output is fully compatible and equally performant.
  • SolScript handles PDA derivation, account validation, and boilerplate automatically.

Feature Comparison

Feature SolScript Anchor
LanguageSolidityRust
Learning curve (ETH devs)MinimalSteep
Learning curve (Rust devs)MediumMinimal
PDA handlingAutomaticManual (macros)
Account validationAutomaticDerive macros
BoilerplateLowMedium
OutputRust/Anchor or BPFBPF
Browser compilerYes (WASM)No
Ecosystem maturityBetaProduction
Auditable codeYes (generated Rust)Yes (native Rust)

Code Comparison: Counter Contract

The same counter contract written in SolScript vs Anchor. Notice the difference in verbosity and boilerplate.

SolScript (Solidity syntax)

counter.sol
contract Counter {
    uint256 public count;
    address public owner;

    event Incremented(address by, uint256 newValue);
    error Unauthorized();

    modifier onlyOwner() {
        if (msg.sender != owner) revert Unauthorized();
        _;
    }

    constructor() {
        owner = msg.sender;
    }

    function increment() public {
        count += 1;
        emit Incremented(msg.sender, count);
    }

    function reset() public onlyOwner {
        count = 0;
    }
}

Anchor (Rust)

counter.rs
use anchor_lang::prelude::*;

declare_id!("...");

#[program]
pub mod counter {
    use super::*;

    pub fn initialize(ctx: Context<Initialize>) -> Result<()> {
        let counter = &mut ctx.accounts.counter;
        counter.count = 0;
        counter.owner = ctx.accounts.signer.key();
        Ok(())
    }

    pub fn increment(ctx: Context<Increment>) -> Result<()> {
        let counter = &mut ctx.accounts.counter;
        counter.count += 1;
        emit!(Incremented {
            by: ctx.accounts.signer.key(),
            new_value: counter.count,
        });
        Ok(())
    }

    pub fn reset(ctx: Context<Reset>) -> Result<()> {
        let counter = &mut ctx.accounts.counter;
        require!(counter.owner == ctx.accounts.signer.key(),
            CounterError::Unauthorized);
        counter.count = 0;
        Ok(())
    }
}

#[derive(Accounts)]
pub struct Initialize<'info> {
    #[account(init, payer = signer, space = 8 + 8 + 32)]
    pub counter: Account<'info, Counter>,
    #[account(mut)]
    pub signer: Signer<'info>,
    pub system_program: Program<'info, System>,
}
// ... more account structs, events, errors

When to Choose Each

Choose SolScript When

  • Your team has Solidity/Ethereum experience
  • You want rapid prototyping with less boilerplate
  • You're migrating contracts from Ethereum to Solana
  • You want automatic PDA and account handling
  • You need a browser-based development environment

Choose Anchor When

  • Your team is proficient in Rust
  • You need the most mature Solana tooling
  • You want direct control over every aspect of the program
  • You're building complex DeFi protocols at scale
  • You need access to the full Anchor ecosystem

Frequently Asked Questions

What is the difference between SolScript and Anchor?
SolScript lets you write Solana contracts in Solidity syntax, then compiles them to Anchor/Rust code. Anchor requires writing Rust directly. SolScript is ideal for developers coming from Ethereum who want to build on Solana without learning Rust.
Is SolScript as performant as Anchor?
Yes. SolScript generates standard Anchor/Rust code, so the compiled output has identical performance. The generated code is auditable and can be modified before deployment.
Can I use SolScript with existing Anchor projects?
SolScript generates standalone Anchor programs. You can use the generated Rust code alongside existing Anchor projects, or integrate SolScript-compiled programs with Anchor frontends using standard Solana SDKs.
Do I need to know Rust to use SolScript?
No. SolScript handles the Solidity-to-Rust compilation automatically. However, understanding the generated Anchor code is helpful for advanced debugging and optimization.
Which should I choose for a new Solana project?
Choose SolScript if your team has Solidity experience and wants rapid development. Choose Anchor directly if your team knows Rust and wants full control over the program code.