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Head-to-head · Smart Contracts Software

Remix IDE vs Foundry

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Remix IDE #1 in Smart Contracts Software 9.2/10 Free plan Free plan✓ 3 of 4 features Visit Remix IDE
Foundry #2 in Smart Contracts Software 8.9/10 Free plan Free plan✓ 1 of 4 features Visit Foundry

Remix IDE leads on 1 check, Foundry on 0, and 4 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreRemix IDE · 9.2/10
  • Free planboth
  • Most featuresRemix IDE · 3 of 4

Remix IDE scores higher on our rubric for smart contracts software: 9.2 against 8.9 out of 10; our editors rank them #1 and #2.

Remix IDE offers security analysis; Foundry doesn't.

Remix IDE is the better fit for developers wanting a free, full-featured contract IDE. Foundry is the better fit for solidity teams comfortable with command-line tools.

  • Remix IDE fits best

    Developers wanting a free, full-featured contract IDE

  • Foundry fits best

    Solidity teams comfortable with command-line tools

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Remix IDE 9.2/10 Visit ↗ Foundry 8.9/10 Visit ↗
At a glance
Editor score 9.2 8.9
Ranking #1 in Smart Contracts Software #2 in Smart Contracts Software
Best for Developers wanting a free, full-featured contract IDE Solidity teams comfortable with command-line tools
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop Self-hosted
Platforms Web, Windows, macOS, Linux Windows, macOS, Linux
Support Community, Docs Community
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Remix IDE 3/4 · Foundry 1/4
Security analysis ✓ (best) —
Visual contract builder — —
API or SDK access ✓ ✓
Contract templates ✓ (best) Not checked yet
Specs
Chain coverage Multi-chain Multi-chain
Contract languages Multiple Multiple
Deployment targets Both Both
Our review
Pros
  • Combines Solidity testing, static analysis, transaction debugging, and deployment.
  • Supports Vyper compilation and reusable contract and project templates.
  • Verifies contracts through Sourcify, Etherscan, Blockscout, and Routescan.
  • Includes build, test, debug, deploy and contract verification tools.
  • Supports fuzz and invariant tests, plus local chain forking.
  • Open-source and available at no charge on Windows, macOS and Linux.
Cons
  • Slither analysis requires a connection to the local filesystem.
  • Its plugin architecture may add setup choices for developers seeking a minimal IDE.
  • Support channels listed are community and documentation.
  • Command-line workflow is less accessible than an IDE.
  • Self-hosted deployment requires developers to manage their own environment.
  • No built-in security analysis or visual builder.
Our verdict

Remix IDE brings smart contract development into a browser-based and desktop environment, primarily for Ethereum and EVM-compatible networks. It is suited to developers who want to write, compile, test, analyze, debug, deploy, and verify…

Read the review →

Foundry is an open-source toolkit from Paradigm for developers building smart contracts for Ethereum and compatible networks. Its command-line tools cover contract development from prototype through deployment: Forge builds, tests, debugs,…

Read the review →
  1. Remix IDESmart Contracts Software 9.2Free plan
  2. FoundrySmart Contracts Software 8.9Free plan

Strengths and trade-offs

  • Remix IDE — where it wins

    • Combines Solidity testing, static analysis, transaction debugging, and deployment.
    • Supports Vyper compilation and reusable contract and project templates.
    • Verifies contracts through Sourcify, Etherscan, Blockscout, and Routescan.

    Where it doesn't

    • Slither analysis requires a connection to the local filesystem.
    • Its plugin architecture may add setup choices for developers seeking a minimal IDE.
    • Support channels listed are community and documentation.

  • Foundry — where it wins

    • Includes build, test, debug, deploy and contract verification tools.
    • Supports fuzz and invariant tests, plus local chain forking.
    • Open-source and available at no charge on Windows, macOS and Linux.

    Where it doesn't

    • Command-line workflow is less accessible than an IDE.
    • Self-hosted deployment requires developers to manage their own environment.
    • No built-in security analysis or visual builder.
  • Remix IDE9.2/10 · Free plan

    A free contract IDE covering authoring, testing, analysis, debugging, deployment, and verification.

    Visit Remix IDEFull verdict →
  • Foundry8.9/10 · Free plan

    A free, open-source toolchain for building, testing, debugging and deploying contracts.

    Visit FoundryFull verdict →

More comparisons

All smart contracts software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update