NomicFoundation/hardhat

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Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software.

Stars: 8.5k
Forks: 1.7k
Open beginner issues: 2
Indexed issues: 601
Avg merge: 6d 20h
Merged PRs (30d): 35

Dominant language: TypeScript
License: No license data
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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601 open issues indexed

Invalid HTTPS_PROXY values are reported as unexpected Hardhat errors Open

status:needs-priority type:improvement

Difficulty 3/5 1-2 days Newbie friendliness 68/100

NomicFoundation/hardhat#8614 · Opened Sep 17, 2026
Upgrade to EDR v0.21.0 Open

dependency:edr

NomicFoundation/hardhat#8612 · 1 assignee · Opened Sep 17, 2026
Use `micro-eth-signer` in `hardhat-verify` Open

NomicFoundation/hardhat#8605 · 1 assignee · Opened Sep 14, 2026
Provide command line utilities Open

type:epic

NomicFoundation/hardhat#8604 · 1 assignee · Opened Sep 14, 2026
Move to Mocha 12 in `hardhat-mocha` Open

NomicFoundation/hardhat#8589 · 1 assignee · Opened Aug 31, 2026
Guard against compiler download race condition Open

NomicFoundation/hardhat#8569 · 1 comment · 1 assignee · Opened Aug 24, 2026
Streaming JSON dominates the JS side of compiles - add a buffered fast path Open

NomicFoundation/hardhat#8565 · 1 assignee · Opened Aug 24, 2026
ethers' JS keccak is the hottest symbol in provider test suites - register a native implementation Open

NomicFoundation/hardhat#8564 · 1 comment · 1 assignee · Opened Aug 24, 2026
~1-1.6s of fixed JS startup on every Hardhat invocation Open

NomicFoundation/hardhat#8563 · 1 assignee · Opened Aug 24, 2026
Cold compiles use one core of 24 - raise solc job granularity Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

NomicFoundation/hardhat#8562 · Opened Aug 24, 2026
Add threat model document Open

NomicFoundation/hardhat#8559 · 1 assignee · Opened Aug 24, 2026
Bare-filename imports of local files get a misleading "invalid npm syntax" error and no suggested fix Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

NomicFoundation/hardhat#8537 · Opened Aug 18, 2026
Investigate if it possible to avoid passing `ethers` in Chai Matchers Open

status:needs-decision

Difficulty 5/5 Over a week Newbie friendliness 35/100

NomicFoundation/hardhat#8473 · Opened Jul 29, 2026
Sequential `hardhat test` intermittently dies with exit 1 on a rejection that was actually handled Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

NomicFoundation/hardhat#8432 · 3 comments · 1 reaction · Opened Jul 8, 2026
Support viem tokens in hardhat-viem Open

_priority:P1

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

NomicFoundation/hardhat#8423 · Opened Jul 6, 2026
Support the `eth_config` JSON-RPC method (EIP-7910) Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

NomicFoundation/hardhat#8409 · Opened Jun 24, 2026
address(console) internal library linking error Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

NomicFoundation/hardhat#8404 · 2 comments · Opened Jun 17, 2026
Optionally read Forge's `.gas-snapshot` format in `--snapshot-check` Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

NomicFoundation/hardhat#8357 · 3 comments · Opened May 29, 2026
Foundry to Hardhat Migration blockers Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

NomicFoundation/hardhat#8347 · Opened May 28, 2026
Update plugin documentation and tutorial to use `definePlugin` Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

NomicFoundation/hardhat#8340 · 2 comments · Opened May 26, 2026
[Known Issue] Process crashes after Hardhat finished running Open

type:bug

Difficulty 5/5 Over a week Newbie friendliness 25/100

NomicFoundation/hardhat#8322 · Opened May 21, 2026
Stable release follow up Open

type:epic

Difficulty 5/5 Over a week Newbie friendliness 20/100

NomicFoundation/hardhat#8318 · Opened May 21, 2026
Reduce gaps in compilation and Solidity Test features Open

type:epic

Difficulty 5/5 Over a week Newbie friendliness 25/100

NomicFoundation/hardhat#8309 · Opened May 18, 2026
Build system performance improvements Open

type:epic

Difficulty 5/5 Over a week Newbie friendliness 25/100

NomicFoundation/hardhat#8308 · Opened May 18, 2026
npx hardhat compile module is not defined in ES module scope Open

status:needs-more-info

NomicFoundation/hardhat#8307 · 1 comment · 1 assignee · Opened May 17, 2026
Follow-up work EIP-712 cheatcodes in Solidity Test Open

status:needs-priority

NomicFoundation/hardhat#8304 · 1 assignee · Opened May 15, 2026
docs: Hardhat 3 docs say 'Node v22 or later' but code enforces v22.13.0 (Docker/Alpine users hit confusing errors) Open

Difficulty 1/5 Under an hour Newbie friendliness 72/100

NomicFoundation/hardhat#8293 · 3 comments · Opened May 13, 2026
Optimize cold builds by adapting compilation job merging Open

_priority:P1

Difficulty 4/5 3-5 days Newbie friendliness 48/100

NomicFoundation/hardhat#8244 · Opened May 5, 2026
Add filesystem metadata caching to build system Open

NomicFoundation/hardhat#8239 · 1 comment · 1 assignee · Opened May 5, 2026
Profile and iterate on Solidity Test preparation phase Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

NomicFoundation/hardhat#8238 · Opened May 5, 2026
Better support agents Open

type:epic

Difficulty 5/5 Over a week Newbie friendliness 20/100

NomicFoundation/hardhat#8236 · Opened May 5, 2026
Add support for agent focused reporters for Solidity Test and Node test Open

_priority:P2 status:needs-decision

Difficulty 4/5 3-5 days Newbie friendliness 52/100

NomicFoundation/hardhat#8235 · Opened May 5, 2026
Support direct Node execution of scripts and tests Open

_priority:P1

Difficulty 4/5 3-5 days Newbie friendliness 45/100

NomicFoundation/hardhat#8233 · Opened May 4, 2026
Installed a previous version but it says the latest version is not supported Open

status:needs-more-info

NomicFoundation/hardhat#8152 · 1 comment · 1 assignee · Opened Apr 17, 2026
Migrate the Solidity Test runner api from a stream into an AsyncGenerator Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

NomicFoundation/hardhat#8150 · Opened Apr 16, 2026
Feature Request: Expose deployment querying API via `hre.ignition` Open

status:needs-priority

Difficulty 5/5 Over a week Newbie friendliness 45/100

NomicFoundation/hardhat#8149 · Opened Apr 16, 2026
Support profiles for Solidity test configs Open

_priority:P1

NomicFoundation/hardhat#8145 · 1 assignee · Opened Apr 14, 2026
Adapt network manager handlers to copy rather than mutate requests Open

_priority:P2

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

NomicFoundation/hardhat#8090 · 3 comments · Opened Mar 26, 2026
Allow setting calling account from parameters in Ignition modules Open

_priority:P2 status:needs-priority

Difficulty 3/5 1-2 days Newbie friendliness 55/100

NomicFoundation/hardhat#8089 · 3 comments · Opened Mar 26, 2026
hardhat-viem: support full viem Chain config via chainDescriptors Open

status:needs-priority

Difficulty 4/5 3-5 days Newbie friendliness 38/100

NomicFoundation/hardhat#8024 · Opened Mar 3, 2026
Tracking issue for (possible) future product feature deprecations Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

NomicFoundation/hardhat#8023 · Opened Mar 2, 2026
Ignition: Incorrect FQN generated for libraries when verifying Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

NomicFoundation/hardhat#8013 · 1 reaction · Opened Feb 27, 2026
ability for a fork to follow gas price from the forked network Open

_priority:P2

NomicFoundation/hardhat#7977 · 3 comments · 1 assignee · Opened Feb 18, 2026
CI and Infrastructure improvements Open

type:epic

Difficulty 5/5 Over a week Newbie friendliness 15/100

NomicFoundation/hardhat#7970 · Opened Feb 16, 2026
Add a `base` chain-type Open

type:epic type:KR

Difficulty 4/5 3-5 days Newbie friendliness 35/100

NomicFoundation/hardhat#7969 · Opened Feb 16, 2026
Dry-run migrate The Graph Open

type:epic

Difficulty 5/5 Over a week Newbie friendliness 20/100

NomicFoundation/hardhat#7968 · Opened Feb 16, 2026
Reduce adoption friction Open

type:epic

Difficulty 5/5 Over a week Newbie friendliness 20/100

NomicFoundation/hardhat#7958 · Opened Feb 16, 2026
hardhat --init automated Open

status:needs-priority

NomicFoundation/hardhat#7888 · 2 comments · 1 assignee · Opened Jan 23, 2026
Ease solc requirements in code coverage for new versions Open

status:needs-priority

Difficulty 4/5 3-5 days Newbie friendliness 45/100

NomicFoundation/hardhat#7800 · Opened Dec 15, 2025
Code coverage is reported for non test files after pulling changes from main Open

_priority:P1

NomicFoundation/hardhat#7788 · 1 comment · 1 assignee · Opened Dec 11, 2025

NomicFoundation/hardhat

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