Alternatives to Rust when writing Solana programs

People ask for “Solana without Rust” for good reasons: hiring, team skill, Solidity muscle memory, or not wanting to fight the borrow checker on day one. The accurate framing is slightly different.

Solana programs are bytecode (historically BPF, today the Solana BPF / SBF toolchain — you deploy a .so). The validator does not execute Rust source. Anything that can emit a valid program binary is, in theory, a language path. In practice almost all production programs are authored in Rust (often with Anchor). Alternatives exist; few are the default for new mainnet money paths.

Click to zoom

Two different questions

Map of authoring paths (2026)

1. Solidity → Solang

Solang is a Solidity compiler (Rust + LLVM backend) with a Solana target, plus Polkadot and Soroban. Docs: solang.readthedocs.io. It aims at Solidity 0.8 source compatibility with caveats where the chain model differs (accounts, compute, no EVM gas metering, etc.).

When it is interesting: team already thinks in Solidity; you are porting mental models or shared business logic; you accept Solana-specific account patterns instead of pretending you are on Ethereum.

When it is a bad fit: you need the path of least resistance for audits, examples, and hiring on Solana — that path is still Rust. Solang is maintained, but the surrounding Solana learning material, security reviews, and IDL/tooling gravity pull toward Anchor.

# Conceptual — see Solang docs for current flags
solang compile --target solana your_contract.sol
# Deploy the produced program artifact with Solana CLI like any other .so

2. Python → Seahorse (via Anchor)

solana-developers/seahorse is a community fork of Seahorse: write Anchor-shaped programs in Python, compile to intermediate Rust, then ride Anchor’s build. Pitch: Python ergonomics with Rust safety on chain.

Read the repo warnings carefully. Seahorse calls out beta status, incomplete features, and the original project’s deprecation. The public seahorse.dev domain has drifted (for-sale pages have appeared — use GitHub as source of truth). Last meaningful activity is far thinner than Anchor’s.

Treat Seahorse as a learning or prototype path unless you have already validated compiler version, Anchor pairing, and audit appetite. It is not “Python on the SVM” in the sense of a CPython runtime — it is a transpiler into the Rust/Anchor world.

# Illustrative Seahorse style (see repo examples for current prelude)
from seahorse.prelude import *

declare_id('YourProgram1111111111111111111111111111111')

class Counter(Account):
    count: u64

@instruction
def bump(counter: Counter):
    counter.count += 1

3. C

Solana’s program model has long allowed C (and C-style) programs built with the SBF toolchain. You will find historical examples and low-level material; you will not find a vibrant “modern C Solana app framework” competing with Anchor for product teams.

Reasonable niche: systems engineers extending runtime-adjacent components, teaching BPF/SBF mechanics, or porting existing C crypto. For a token launchpad or marketplace program, C is almost always the wrong default in 2026.

4. Still Rust — but not “raw Rust”

If the real pain is boilerplate, macros, and account checks — not the Rust language — stay in Rust and change framework:

• Anchor — IDL, account constraints, TS clients; ecosystem default
• Pinocchio — minimal, CU- and size-oriented
• Steel — lighter middle ground

Details: Anchor vs Pinocchio vs Steel. Deploy path for Rust programs is still cargo build-sbf / Anchor wrappers, then solana program deploy (deploy docs).

5. What is not an alternative

• @solana/web3.js / Kit / wallet-adapter / Anchor TS — talk to programs; they are not program languages
• “AI writes the program” — still usually emits Rust/Anchor; you own the audit surface
• Move / Cairo / ink! — other chains’ models; not Solana program toolchains

How to choose

Honest constraints

• Security reviews and public post-mortems are overwhelmingly Rust/Anchor-shaped. Novel compilers add compiler-risk on top of program-risk.
• Composability with SPL, token-2022, and popular protocols is documented in Rust first.
• IDL and client gen (Anchor IDL, Codama, etc.) assume the dominant Rust workflows.

Avoiding Rust is possible. Avoiding the ecosystem gravity of Rust is not — budget time to read Rust interfaces even if you author elsewhere.

Resources

• Deploying programs (Solana docs)
• Anchor · Anchor / Pinocchio / Steel
• Solang · Solang docs
• Seahorse (community fork)

Summary

Alternatives to writing Rust on Solana: Solang/Solidity (real compiler path), Seahorse/Python (transpiles through Anchor, beta), and niche C. Alternatives to painful Rust: Anchor, Pinocchio, Steel — still Rust. For most product teams in 2026 the default remains Rust; use other languages when the team constraint is real and you accept toolchain and audit tradeoffs.