Gathering detailed insights and metrics for esbuild-runner
Gathering detailed insights and metrics for esbuild-runner
⚡️ Super-fast on-the-fly transpilation of modern JS, TypeScript and JSX using esbuild
Installations
npm install esbuild-runnerDeveloper Guide
BETA
Typescript
Yes
Module System
CommonJS
Node Version
18.9.1
NPM Version
8.19.1
Score
89.7
Supply Chain
89.3
Quality
75.7
Maintenance
100
Vulnerability
99.3
License
Releases
10
Languages
3
TypeScript
JavaScript
Shell
TypeScript (67.25%)
JavaScript (32.21%)
Shell (0.53%)
Developer
Download Statistics
Total Downloads
13,324,106
Last Day
7,585
Last Week
112,423
Last Month
479,874
Last Year
5,588,786
GitHub Statistics
Apache-2.0 License
716 Stars
63 Commits
25 Forks
2 Watchers
11 Branches
5 Contributors
Updated on Jun 20, 2025
Bundle Size
45.37 kB
Minified
14.04 kB
Minified + Gzipped
Maintainers
1
Package Meta Information
Latest Version
2.2.2
Package Id
esbuild-runner@2.2.2
Unpacked Size
36.75 kB
Size
11.98 kB
File Count
27
NPM Version
8.19.1
Node Version
18.9.1
Total Downloads
Cumulative downloads
Total Downloads
13,324,106
Last Day
26.9%
7,585
Compared to previous day
Last Week
-4.4%
112,423
Compared to previous week
Last Month
2.1%
479,874
Compared to previous month
Last Year
51.7%
5,588,786
Compared to previous year
Weekly Downloads
Monthly Downloads
Yearly Downloads
Dependencies
2
Peer Dependencies
1
Dev Dependencies
28
@release-it/conventional-changelog@types/eslint@types/eslint-plugin-prettier@types/node@types/prettier@types/rimraf@types/source-map-support@typescript-eslint/eslint-plugin@typescript-eslint/parserdevmojiesbuildeslinteslint-config-prettiereslint-plugin-eslint-commentseslint-plugin-importeslint-plugin-jesteslint-plugin-nodeeslint-plugin-prettiereslint-plugin-promiseeslint-plugin-unicornhuskyjestprettierrelease-itrimraftype-festtypescripttypesync
:zap: Esbuild Runner (esr)
Super-fast on-the-fly transpilation of modern JS, TypeScript and JSX using esbuild.
esr makes it easy to run arbitrary code or tests without needing to build your whole project. It's a great way to improve your development workflow.
✨ Usage
The easiest way to use esbuild-runner is to install it globally and use the included esr binary.
1$ esr hello-world.ts
Alternatively, you can require esbuild-runner within any nodejs process to include realtime transpilation:
1$ node -r esbuild-runner/register hello-world.ts
In order to use esbuild-runner with Jest, you need to configure a Jest transform in your jest.config.js
1module.exports = { 2 transform: { 3 "\\.ts$": "esbuild-runner/jest", 4 }, 5}
VSCode Debugging
1{ 2 "version": "0.2.0", 3 "configurations": [ 4 { 5 "name": "Debug with esbuild-runner", 6 "program": "${workspaceFolder}/hello-world.ts", 7 "runtimeArgs": [ 8 "-r", 9 "esbuild-runner/register" 10 ], 11 "request": "launch", 12 "sourceMaps": true, 13 "skipFiles": [ 14 "<node_internals>/**" 15 ], 16 "type": "pwa-node" 17 } 18 ] 19}
⚙️ Configuration
esr provides two different ways to transpile your code:
- bundling (default): this transpiles the script and all its dependencies in typically one invocation of esbuild. Dependencies defined in
package.jsonornode_moduleswill never be transpiled. Runningesrwill always transpile the code. No caching is used. - transform (
--cache): this method will invoke esbuild for every source file, but will cache the result. This means that the initial run will be slower, but after that, only changed source files will be transpiled.
1$ bin/esr.js --help 2Usage: esr [options] <source-file> [file-options] 3 4 --cache Transform on a file per file basis and cache code 5 --clearCache Clear transform cache 6 --help|-h Display this help message 7
To customize the options passed to esbuild, you can create an esbuild-runner.config.js file in the current directory or one of the ancestor directories.
1// example esbuild-runner.config.js 2module.exports = { 3 type: "bundle", // bundle or transform (see description above) 4 esbuild: { 5 // Any esbuild build or transform options go here 6 target: "esnext", 7 }, 8}
📦 Installation
Simply install the esbuild-runner npm package using your favorite package manager.
- globally ...
1$ npm install -g esbuild-runner
- ... or locally in your project
1$ npm add --dev esbuild-runner
👋 Contributing
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
⚖ License
No vulnerabilities found.
Reason
no dangerous workflow patterns detected
Reason
no binaries found in the repo
Reason
license file detected
Details
- Info: project has a license file: LICENSE:0
- Info: FSF or OSI recognized license: Apache License 2.0: LICENSE:0
Reason
Found 3/26 approved changesets -- score normalized to 1
Reason
0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Reason
detected GitHub workflow tokens with excessive permissions
Details
- Warn: no topLevel permission defined: .github/workflows/node.js.yml:1
- Info: no jobLevel write permissions found
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
security policy file not detected
Details
- Warn: no security policy file detected
- Warn: no security file to analyze
- Warn: no security file to analyze
- Warn: no security file to analyze
Reason
dependency not pinned by hash detected -- score normalized to 0
Details
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/node.js.yml:21: update your workflow using https://app.stepsecurity.io/secureworkflow/folke/esbuild-runner/node.js.yml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/node.js.yml:23: update your workflow using https://app.stepsecurity.io/secureworkflow/folke/esbuild-runner/node.js.yml/main?enable=pin
- Warn: npmCommand not pinned by hash: .github/workflows/node.js.yml:27
- Info: 0 out of 2 GitHub-owned GitHubAction dependencies pinned
- Info: 0 out of 1 npmCommand dependencies pinned
Reason
project is not fuzzed
Details
- Warn: no fuzzer integrations found
Reason
branch protection not enabled on development/release branches
Details
- Warn: branch protection not enabled for branch 'main'
Reason
SAST tool is not run on all commits -- score normalized to 0
Details
- Warn: 0 commits out of 12 are checked with a SAST tool
Reason
27 existing vulnerabilities detected
Details
- Warn: Project is vulnerable to: GHSA-968p-4wvh-cqc8
- Warn: Project is vulnerable to: GHSA-67hx-6x53-jw92
- Warn: Project is vulnerable to: GHSA-h5c3-5r3r-rr8q
- Warn: Project is vulnerable to: GHSA-rmvr-2pp2-xj38
- Warn: Project is vulnerable to: GHSA-xx4v-prfh-6cgc
- Warn: Project is vulnerable to: GHSA-wf5p-g6vw-rhxx
- Warn: Project is vulnerable to: GHSA-jr5f-v2jv-69x6
- Warn: Project is vulnerable to: GHSA-v6h2-p8h4-qcjw
- Warn: Project is vulnerable to: GHSA-grv7-fg5c-xmjg
- Warn: Project is vulnerable to: GHSA-3xgq-45jj-v275
- Warn: Project is vulnerable to: GHSA-67mh-4wv8-2f99
- Warn: Project is vulnerable to: GHSA-jchw-25xp-jwwc
- Warn: Project is vulnerable to: GHSA-cxjh-pqwp-8mfp
- Warn: Project is vulnerable to: GHSA-rc47-6667-2j5j
- Warn: Project is vulnerable to: GHSA-78xj-cgh5-2h22
- Warn: Project is vulnerable to: GHSA-2p57-rm9w-gvfp
- Warn: Project is vulnerable to: GHSA-9c47-m6qq-7p4h
- Warn: Project is vulnerable to: GHSA-952p-6rrq-rcjv
- Warn: Project is vulnerable to: GHSA-c2qf-rxjj-qqgw
- Warn: Project is vulnerable to: GHSA-7jxr-cg7f-gpgv
- Warn: Project is vulnerable to: GHSA-xj72-wvfv-8985
- Warn: Project is vulnerable to: GHSA-ch3r-j5x3-6q2m
- Warn: Project is vulnerable to: GHSA-p5gc-c584-jj6v
- Warn: Project is vulnerable to: GHSA-whpj-8f3w-67p5
- Warn: Project is vulnerable to: GHSA-cchq-frgv-rjh5
- Warn: Project is vulnerable to: GHSA-g644-9gfx-q4q4
- Warn: Project is vulnerable to: GHSA-j8xg-fqg3-53r7
Score
2.6
/10
Last Scanned on 2025-06-30
The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.
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