Gathering detailed insights and metrics for preact-render-to-string
Gathering detailed insights and metrics for preact-render-to-string
📄 Universal rendering for Preact: render JSX and Preact components to HTML.
Installations
npm install preact-render-to-stringDeveloper Guide
BETA
Typescript
Yes
Module System
CommonJS, ESM
Node Version
18.20.5
NPM Version
10.8.2
Score
99.4
Supply Chain
94.5
Quality
88.3
Maintenance
100
Vulnerability
100
License
Releases
96
Languages
1
JavaScript
JavaScript (100%)
Developer
Download Statistics
Total Downloads
201,167,554
Last Day
351,401
Last Week
1,922,325
Last Month
8,357,334
Last Year
78,484,855
GitHub Statistics
MIT License
677 Stars
608 Commits
96 Forks
9 Watchers
40 Branches
49 Contributors
Updated on May 07, 2025
Bundle Size
8.69 kB
Minified
3.71 kB
Minified + Gzipped
Maintainers
6
Package Meta Information
Latest Version
6.5.13
Package Id
preact-render-to-string@6.5.13
Unpacked Size
782.04 kB
Size
234.55 kB
File Count
56
NPM Version
10.8.2
Node Version
18.20.5
Published on
Jan 13, 2025
Total Downloads
Cumulative downloads
Total Downloads
201,167,554
Last Day
43.9%
351,401
Compared to previous day
Last Week
2.3%
1,922,325
Compared to previous week
Last Month
-5%
8,357,334
Compared to previous month
Last Year
48.8%
78,484,855
Compared to previous year
Weekly Downloads
Monthly Downloads
Yearly Downloads
Peer Dependencies
1
Dev Dependencies
23
@babel/plugin-transform-react-jsx@babel/preset-env@babel/register@changesets/changelog-github@changesets/clibaseline-rtsbenchmarkjs-prettychaicheck-export-mapcopyfileseslinteslint-config-developithuskylint-stagedmicrobundlemochapreactprettierpretty-formatsinonsinon-chaitypescriptweb-streams-polyfill
preact-render-to-string
Render JSX and Preact components to an HTML string.
Works in Node & the browser, making it useful for universal/isomorphic rendering.
>> Cute Fox-Related Demo (@ CodePen) <<
Render JSX/VDOM to HTML
1import { render } from 'preact-render-to-string'; 2import { h } from 'preact'; 3/** @jsx h */ 4 5let vdom = <div class="foo">content</div>; 6 7let html = render(vdom); 8console.log(html); 9// <div class="foo">content</div>
Render Preact Components to HTML
1import { render } from 'preact-render-to-string'; 2import { h, Component } from 'preact'; 3/** @jsx h */ 4 5// Classical components work 6class Fox extends Component { 7 render({ name }) { 8 return <span class="fox">{name}</span>; 9 } 10} 11 12// ... and so do pure functional components: 13const Box = ({ type, children }) => ( 14 <div class={`box box-${type}`}>{children}</div> 15); 16 17let html = render( 18 <Box type="open"> 19 <Fox name="Finn" /> 20 </Box> 21); 22 23console.log(html); 24// <div class="box box-open"><span class="fox">Finn</span></div>
Render JSX / Preact / Whatever via Express!
1import express from 'express'; 2import { h } from 'preact'; 3import { render } from 'preact-render-to-string'; 4/** @jsx h */ 5 6// silly example component: 7const Fox = ({ name }) => ( 8 <div class="fox"> 9 <h5>{name}</h5> 10 <p>This page is all about {name}.</p> 11 </div> 12); 13 14// basic HTTP server via express: 15const app = express(); 16app.listen(8080); 17 18// on each request, render and return a component: 19app.get('/:fox', (req, res) => { 20 let html = render(<Fox name={req.params.fox} />); 21 // send it back wrapped up as an HTML5 document: 22 res.send(`<!DOCTYPE html><html><body>${html}</body></html>`); 23});
Error Boundaries
Rendering errors can be caught by Preact via getDerivedStateFromErrors or componentDidCatch. To enable that feature in preact-render-to-string set errorBoundaries = true
1import { options } from 'preact'; 2 3// Enable error boundaries in `preact-render-to-string` 4options.errorBoundaries = true;
Suspense & lazy components with preact/compat
1npm install preact preact-render-to-string
1export default () => { 2 return <h1>Home page</h1>; 3};
1import { Suspense, lazy } from 'preact/compat'; 2 3// Creation of the lazy component 4const HomePage = lazy(() => import('./pages/home')); 5 6const Main = () => { 7 return ( 8 <Suspense fallback={<p>Loading</p>}> 9 <HomePage /> 10 </Suspense> 11 ); 12};
1import { renderToStringAsync } from 'preact-render-to-string'; 2import { Main } from './main'; 3 4const main = async () => { 5 // Rendering of lazy components 6 const html = await renderToStringAsync(<Main />); 7 8 console.log(html); 9 // <h1>Home page</h1> 10}; 11 12// Execution & error handling 13main().catch((error) => { 14 console.error(error); 15});
License
No vulnerabilities found.
Reason
all changesets reviewed
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: MIT License: LICENSE:0
Reason
dependency not pinned by hash detected -- score normalized to 5
Details
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/ci.yml:17: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact-render-to-string/ci.yml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/ci.yml:18: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact-render-to-string/ci.yml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/release.yml:19: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact-render-to-string/release.yml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/release.yml:25: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact-render-to-string/release.yml/main?enable=pin
- Warn: third-party GitHubAction not pinned by hash: .github/workflows/release.yml:34: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/preact-render-to-string/release.yml/main?enable=pin
- Info: 0 out of 4 GitHub-owned GitHubAction dependencies pinned
- Info: 0 out of 1 third-party GitHubAction dependencies pinned
- Info: 2 out of 2 npmCommand dependencies pinned
Reason
2 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 2
Reason
detected GitHub workflow tokens with excessive permissions
Details
- Warn: jobLevel 'contents' permission set to 'write': .github/workflows/release.yml:13
- Info: jobLevel 'issues' permission set to 'read': .github/workflows/release.yml:15
- Warn: no topLevel permission defined: .github/workflows/ci.yml:1
- Warn: no topLevel permission defined: .github/workflows/release.yml:1
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
project is not fuzzed
Details
- Warn: no fuzzer integrations found
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
SAST tool is not run on all commits -- score normalized to 0
Details
- Warn: 0 commits out of 30 are checked with a SAST tool
Reason
55 existing vulnerabilities detected
Details
- Warn: Project is vulnerable to: GHSA-968p-4wvh-cqc8
- Warn: Project is vulnerable to: GHSA-qwcr-r2fm-qrc7
- Warn: Project is vulnerable to: GHSA-pxg6-pf52-xh8x
- Warn: Project is vulnerable to: GHSA-67mh-4wv8-2f99
- Warn: Project is vulnerable to: GHSA-rv95-896h-c2vc
- Warn: Project is vulnerable to: GHSA-qw6h-vgh9-j6wx
- Warn: Project is vulnerable to: GHSA-9pv7-vfvm-6vr7
- Warn: Project is vulnerable to: GHSA-mwcw-c2x4-8c55
- Warn: Project is vulnerable to: GHSA-9wv6-86v2-598j
- Warn: Project is vulnerable to: GHSA-rhx6-c78j-4q9w
- Warn: Project is vulnerable to: GHSA-7fh5-64p2-3v2j
- Warn: Project is vulnerable to: GHSA-gcx4-mw62-g8wm
- Warn: Project is vulnerable to: GHSA-m6fv-jmcg-4jfg
- Warn: Project is vulnerable to: GHSA-cm22-4g7w-348p
- Warn: Project is vulnerable to: GHSA-353f-5xf4-qw67
- Warn: Project is vulnerable to: GHSA-c24v-8rfc-w8vw
- Warn: Project is vulnerable to: GHSA-8jhw-289h-jh2g
- Warn: Project is vulnerable to: GHSA-64vr-g452-qvp3
- Warn: Project is vulnerable to: GHSA-9cwx-2883-4wfx
- Warn: Project is vulnerable to: GHSA-vg6x-rcgg-rjx6
- Warn: Project is vulnerable to: GHSA-x574-m823-4x7w
- Warn: Project is vulnerable to: GHSA-4r4m-qw57-chr8
- Warn: Project is vulnerable to: GHSA-xcj6-pq6g-qj4x
- Warn: Project is vulnerable to: GHSA-356w-63v5-8wf4
- Warn: Project is vulnerable to: GHSA-859w-5945-r5v3
- Warn: Project is vulnerable to: GHSA-67hx-6x53-jw92
- Warn: Project is vulnerable to: GHSA-93q8-gq69-wqmw
- Warn: Project is vulnerable to: GHSA-grv7-fg5c-xmjg
- Warn: Project is vulnerable to: GHSA-w8qv-6jwh-64r5
- Warn: Project is vulnerable to: GHSA-257v-vj4p-3w2h
- Warn: Project is vulnerable to: GHSA-3xgq-45jj-v275
- Warn: Project is vulnerable to: GHSA-gxpj-cx7g-858c
- Warn: Project is vulnerable to: GHSA-ghr5-ch3p-vcr6
- Warn: Project is vulnerable to: GHSA-4q6p-r6v2-jvc5
- Warn: Project is vulnerable to: GHSA-7r28-3m3f-r2pr
- Warn: Project is vulnerable to: GHSA-r8j5-h5cx-65gg
- Warn: Project is vulnerable to: GHSA-9c47-m6qq-7p4h
- Warn: Project is vulnerable to: GHSA-76p3-8jx3-jpfq
- Warn: Project is vulnerable to: GHSA-3rfm-jhwj-7488
- Warn: Project is vulnerable to: GHSA-hhq3-ff78-jv3g
- Warn: Project is vulnerable to: GHSA-29mw-wpgm-hmr9
- Warn: Project is vulnerable to: GHSA-35jh-r3h4-6jhm
- Warn: Project is vulnerable to: GHSA-952p-6rrq-rcjv
- Warn: Project is vulnerable to: GHSA-f8q6-p94x-37v3
- Warn: Project is vulnerable to: GHSA-xvch-5gv4-984h
- Warn: Project is vulnerable to: GHSA-qrpm-p2h7-hrv2
- Warn: Project is vulnerable to: GHSA-r683-j2x4-v87g
- Warn: Project is vulnerable to: GHSA-rp65-9cf3-cjxr
- Warn: Project is vulnerable to: GHSA-g6ww-v8xp-vmwg
- Warn: Project is vulnerable to: GHSA-566m-qj78-rww5
- Warn: Project is vulnerable to: GHSA-hwj9-h5mp-3pm3
- Warn: Project is vulnerable to: GHSA-c2qf-rxjj-qqgw
- Warn: Project is vulnerable to: GHSA-44c6-4v22-4mhx
- Warn: Project is vulnerable to: GHSA-4x5v-gmq8-25ch
- Warn: Project is vulnerable to: GHSA-j8xg-fqg3-53r7
Score
4.3
/10
Last Scanned on 2025-04-28
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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