Jscrambler
Jscrambler is a cloud-based JavaScript protection tool that uses code obfuscation and anti-tamper controls.
What Jscrambler is
Jscrambler is a cloud-based JavaScript protection tool that uses code obfuscation and anti-tamper controls. It supports JavaScript across browsers and Node.js, as well as frameworks and tools including React Native, Ionic, NativeScript, Angular, React, Vue, and Webpack. Its controls include changing code flow and encrypting strings. Teams can integrate it into builds through a command-line interface. Jscrambler is a web-based service, founded in 2010 and headquartered in Porto, Portugal. It is a paid product, with pricing available on request. Its supported targets span both JavaScript runtimes and a range of frameworks, which makes the listed target coverage a useful starting point when considering it for a development workflow.
Good
- Supports browsers and Node.js.
- Includes anti-tamper controls.
- Offers control-flow obfuscation and string encryption.
- CLI build integration is available.
Watch out
- Pricing is available on request.
- Web platform only.
Who it suits
Jscrambler suits developers or teams seeking JavaScript obfuscation and anti-tamper controls for the listed runtimes and frameworks. It may fit workflows that use a CLI build integration and cloud deployment.
Verdict
Jscrambler combines multiple JavaScript protection controls with support for a broad set of listed targets. Check that its cloud deployment and paid, request-based pricing suit your workflow.
Plans and prices
From Jscrambler's own pricing page, checked 15 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Code Integrity | Priced on request | JavaScript obfuscation · polymorphic transformations · code locks · anti-debugging · self-defending capabilities |
| Webpage Integrity | Priced on request | third-party script control · real-time monitoring · PCI DSS v4 compliance · custom plans |
The facts
Each one read from Jscrambler's own pages, with the date it was checked.
What it does
- API clients
- Official clients are provided for JavaScript/Node.js, Grunt, Gulp and Webpack.checked 15 Oct 2026
- API scope
- The documentation says actions available in the Web Application can also be performed through the API.checked 15 Oct 2026
- Client licence
- The public Jscrambler npm client and GitHub repository are released under the MIT licence; the hosted protection service requires credentials.checked 15 Oct 2026
- CLI installation
- The Node client can be installed globally with npm install -g jscrambler and run against single files, multiple files or minimatch patterns.checked 15 Oct 2026
- Code feature: anti-debugging
- Anti-debugging detects runtime debugging attempts and can trigger configured countermeasures.checked 15 Oct 2026
- Code feature: code locks
- Code locks can restrict execution by browser, operating system, domain or date.checked 15 Oct 2026
- Code feature: obfuscation
- The Code Integrity product includes polymorphic obfuscation and control-flow flattening.checked 15 Oct 2026
- Code feature: threat monitoring
- JavaScript Threat Monitoring provides a live feed of detected violations.checked 15 Oct 2026
- Code Integrity
- Code Integrity uses polymorphic transformations and runtime defenses to make client-side logic harder to reverse engineer and tamper with.checked 15 Oct 2026
- Compliance
- Webpage Integrity supports PCI DSS v4 requirements 6.4.3 and 11.6.1 and also addresses GDPR, CCPA and HIPAA controls.checked 15 Oct 2026
- Configuration
- Integrations use JSON containing API credentials, an application ID and protection settings.checked 15 Oct 2026
- Deployment
- The UK Government Digital Marketplace listing offers public, private or hybrid cloud and says on-premises deployment is available.checked 15 Oct 2026
- Documentation depth
- The help center covers APIs, CI integrations, versions, SIEM, ECMAScript compatibility, app classification and browser compatibility.checked 15 Oct 2026
- Iframe Integrity
- Iframe Integrity protects payment iframes from hijacking, overlays, formjacking, skimming and function hijacking.checked 15 Oct 2026
- Integrations
- The ecosystem lists AWS, CircleCI, GitHub, GitLab, Jenkins, Azure, Google Cloud, Splunk, IBM QRadar and Microsoft Sentinel integrations.checked 15 Oct 2026
- Legal entity and funding
- Crunchbase identifies the legal entity as Jscrambler, SA, founded by Pedro Fortuna and Rui Ribeiro, with four funding rounds and investors including Iberis Capital and Portugal Ventures.checked 15 Oct 2026
- Limit: documentation and reporting
- G2 feedback cites limited guidance, report-export failures and an initial learning curve.checked 15 Oct 2026
- Limit: enterprise readiness
- A Gartner reviewer criticized outdated or poorly tested technology, bugs and very slow VM obfuscation.checked 15 Oct 2026
Where it runs
- Browser requirements
- The compatibility guide lists tested minimums of Chrome 40+, Firefox 40+, IE8+, Edge 18 and Safari 10.1+.checked 15 Oct 2026
The company
- Company facts
- LinkedIn lists Jscrambler as a privately held 51–200-person company founded in 2014 with headquarters in San Francisco.checked 15 Oct 2026
- Founded
- 2010checked 23 Sep 2026
- Headquarters
- Porto, Portugalchecked 23 Sep 2026
Money
- Government price
- The UK Government listing shows a price of £20,000 per unit for Webpage Integrity.checked 15 Oct 2026
- Limit: cost model
- Capterra reviewers describe the product as expensive and usage-based, requiring monitoring of build consumption.checked 15 Oct 2026
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