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Head-to-head · Smart Contracts Software

Foundry vs Tenderly

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Foundry #2 in Smart Contracts Software 8.9/10 Free plan Free plan✓ 1 of 4 features Visit Foundry
Tenderly #7 in Smart Contracts Software 8.2/10 Free plan · pricing on request Free plan✓ 1 of 4 features Visit Tenderly

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

Our verdict

  • Highest scoreFoundry · 8.9/10
  • Free planboth

Foundry scores higher on our rubric for smart contracts software: 8.9 against 8.2 out of 10; our editors rank them #2 and #7.

Foundry is the better fit for solidity teams comfortable with command-line tools. Tenderly is the better fit for teams focused on simulation, debugging, and monitoring.

  • Foundry fits best

    Solidity teams comfortable with command-line tools

  • Tenderly fits best

    Teams focused on simulation, debugging, and monitoring

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Side by side

Feature Foundry 8.9/10 Visit ↗ Tenderly 8.2/10 Visit ↗
At a glance
Editor score 8.9 8.2
Ranking #2 in Smart Contracts Software #7 in Smart Contracts Software
Best for Solidity teams comfortable with command-line tools Teams focused on simulation, debugging, and monitoring
Pricing model Free Free plan + paid
Starting price Free plan —
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted Cloud, Browser extension
Platforms Windows, macOS, Linux Web
Support Community Email, Live chat, Docs
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Foundry 1/4 · Tenderly 1/4
Security analysis — Not checked yet
Visual contract builder — —
API or SDK access ✓ ✓
Contract templates Not checked yet Not checked yet
Specs
Chain coverage Multi-chain Multi-chain
Contract languages Multiple Not checked yet
Deployment targets Both Both
Our review
Pros
  • 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.
  • Simulates single transactions and multi-step bundles against live network state
  • Provides opcode-level traces, expression evaluation, and gas profiling
  • Monitors addresses, contracts, events, and state conditions with alerts
Cons
  • 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.
  • Focused on operations and debugging, not broad contract authoring
  • Paid team pricing is configured through sales rather than published as a set amount
  • Team plans are scoped by products, capacity, support, and chain count
Our verdict

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 →

Tenderly gives engineering, finance, and risk teams tools to examine and manage onchain activity. Its Simulator can model single transactions or multi-step bundles against live network state, while the Explorer and Debugger help inspect…

Read the review →
  1. FoundrySmart Contracts Software 8.9Free plan
  2. TenderlySmart Contracts Software 8.2Free plan · pricing on request

Strengths and trade-offs

  • 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.

  • Tenderly — where it wins

    • Simulates single transactions and multi-step bundles against live network state
    • Provides opcode-level traces, expression evaluation, and gas profiling
    • Monitors addresses, contracts, events, and state conditions with alerts

    Where it doesn't

    • Focused on operations and debugging, not broad contract authoring
    • Paid team pricing is configured through sales rather than published as a set amount
    • Team plans are scoped by products, capacity, support, and chain count
  • Foundry8.9/10 · Free plan

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

    Visit FoundryFull verdict →
  • Tenderly8.2/10 · Free plan · pricing on request

    A transaction operations toolkit for simulation, debugging, and onchain monitoring.

    Visit TenderlyFull 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