Freedom251 › Code Obfuscation Software
Jscrambler
What Jscrambler is
Jscrambler is a cloud-based JavaScript protection service with code obfuscation and anti-tamper controls. Its listed techniques include control-flow obfuscation and string encryption. Supported targets include JavaScript in browsers and Node.js, along with React Native, Ionic, NativeScript, Angular, React, Vue, and Webpack. Development teams can integrate it into builds through a command-line interface. The service is accessed on the web and uses a cloud deployment model. Jscrambler was founded in 2010 and is headquartered in Porto, Portugal. It is a paid product, and pricing is available on request. The range of listed runtimes, frameworks, and tools gives teams specific environments to check when assessing whether the service fits their JavaScript workflow.
Who it suits
Jscrambler suits teams seeking JavaScript obfuscation and anti-tamper controls for the listed runtimes, frameworks, and tools. It may fit build workflows that can use a command-line integration and cloud deployment.
What it does well
- Provides anti-tamper controls.
- Includes control-flow obfuscation and string encryption.
- Supports browsers and Node.js.
- Offers command-line build integration.
What to know first
- Paid product with pricing on request.
- Cloud deployment model.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Webpage Integrity | third-party script control · real-time monitoring · PCI DSS v4 compliance · custom plans | On request |
| Code Integrity | JavaScript obfuscation · polymorphic transformations · code locks · anti-debugging · self-defending capabilities | On request |
As jscrambler.com lists them, read 15 Oct 2026. The maker's own page has the final word.
Getting started
- Visit https://jscrambler.com/.
- Check that your JavaScript target is among the supported environments.
- Review the paid offering and request pricing.
- Use the command-line interface to integrate it into a build workflow.
Verdict
Jscrambler combines JavaScript obfuscation and anti-tamper controls with command-line build integration. Teams should confirm their target environment is listed and request pricing.
Questions
What does Jscrambler do?
It provides JavaScript protection with code obfuscation and anti-tamper controls, including control-flow obfuscation and string encryption.
Which targets does it support?
Its supported targets include JavaScript, browsers, Node.js, React Native, Ionic, NativeScript, Angular, React, Vue, and Webpack.
How much does Jscrambler cost?
It is a paid product, with pricing available on request.
How is Jscrambler deployed and integrated?
It uses a cloud deployment model and offers build integration through a command-line interface.
Where is Jscrambler based?
Jscrambler was founded in 2010 and is headquartered in Porto, Portugal.
Facts from Jscrambler's own pages
- API clients
- Official clients are provided for JavaScript/Node.js, Grunt, Gulp and Webpack. · docs.jscrambler.com, 15 Oct 2026
- API scope
- The documentation says actions available in the Web Application can also be performed through the API. · docs.jscrambler.com, 15 Oct 2026
- Browser requirements
- The compatibility guide lists tested minimums of Chrome 40+, Firefox 40+, IE8+, Edge 18 and Safari 10.1+. · docs.jscrambler.com, 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. · npmjs.com, 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. · docs.jscrambler.com, 15 Oct 2026
- Code feature: anti-debugging
- Anti-debugging detects runtime debugging attempts and can trigger configured countermeasures. · js.jscrambler.com, 15 Oct 2026
- Code feature: code locks
- Code locks can restrict execution by browser, operating system, domain or date. · g2.com, 15 Oct 2026
- Code feature: obfuscation
- The Code Integrity product includes polymorphic obfuscation and control-flow flattening. · jscrambler.com, 15 Oct 2026
- Code feature: threat monitoring
- JavaScript Threat Monitoring provides a live feed of detected violations. · g2.com, 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. · jscrambler.com, 15 Oct 2026
- Company facts
- LinkedIn lists Jscrambler as a privately held 51–200-person company founded in 2014 with headquarters in San Francisco. · linkedin.com, 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. · jscrambler.com, 15 Oct 2026
- Configuration
- Integrations use JSON containing API credentials, an application ID and protection settings. · docs.jscrambler.com, 15 Oct 2026
- Deployment
- The UK Government Digital Marketplace listing offers public, private or hybrid cloud and says on-premises deployment is available. · applytosupply.digitalmarketplace.service.gov.uk, 15 Oct 2026
- Documentation depth
- The help center covers APIs, CI integrations, versions, SIEM, ECMAScript compatibility, app classification and browser compatibility. · docs.jscrambler.com, 15 Oct 2026
- Founded
- 2010 · jscrambler.com, 23 Sept 2026
- Government price
- The UK Government listing shows a price of £20,000 per unit for Webpage Integrity. · applytosupply.digitalmarketplace.service.gov.uk, 15 Oct 2026
- Headquarters
- Porto, Portugal · jscrambler.com, 23 Sept 2026
- Iframe Integrity
- Iframe Integrity protects payment iframes from hijacking, overlays, formjacking, skimming and function hijacking. · jscrambler.com, 15 Oct 2026
- Integrations
- The ecosystem lists AWS, CircleCI, GitHub, GitLab, Jenkins, Azure, Google Cloud, Splunk, IBM QRadar and Microsoft Sentinel integrations. · jscrambler.com, 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. · crunchbase.com, 15 Oct 2026
- Limit: cost model
- Capterra reviewers describe the product as expensive and usage-based, requiring monitoring of build consumption. · capterra.com, 15 Oct 2026
- Limit: documentation and reporting
- G2 feedback cites limited guidance, report-export failures and an initial learning curve. · g2.com, 15 Oct 2026
- Limit: enterprise readiness
- A Gartner reviewer criticized outdated or poorly tested technology, bugs and very slow VM obfuscation. · gartner.com, 15 Oct 2026
Where Jscrambler stands on Freedom251
- Code Obfuscation Software#21 of 34