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Stringer Java Obfuscator

jfxstore.com

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Spec score 7.8 #18 of 34 in Code Obfuscation Software

What it is

Stringer Java Obfuscator protects Java application binaries against reverse engineering and modification. It can encrypt strings and application resources, including native libraries, and conceal method calls, field types, and field access. Integrity features include certificate and JAR content checks, JAR sealing, runtime checks, and tamper notifications. The manual also lists anti-emulator and Java code anti-debugging protections, resource-name obfuscation, SSL pinning, watermarking, and a secure code execution environment. Stringer runs offline in an environment controlled by the customer and is available for Linux, macOS, and Windows. Teams can use the command line and integrate it with Ant, Maven, Gradle, or Eclipse. Listed targets include Java SE, Jakarta EE, Java ME, JavaFX, Java Embedded, Eclipse RCP, and NetBeans RCP. The GUI does not expose every feature, and some features and project-input support are Enterprise-only or priced separately. Stringer runs under JRE 1.7 or later and can process applications compiled for J2SE 5.0 and later. Pricing is on request; a 15-day trial is offered.

Spec sheet

Purpose
Stringer safeguards Java application binaries against reverse engineering and modification.Read 9 Oct 2026 · jfxstore.com
Intended users
Licel describes Stringer as Java code protection for standalone, desktop, and enterprise apps.Read 9 Oct 2026 · licelus.com
Integrations
The manual documents command-line use and integrations with Ant, Maven, Gradle, and Eclipse.Read 9 Oct 2026 · jfxstore.com
Support
The maker describes the trial as fully supported and says a team member will respond within one business day.Read 9 Oct 2026 · licelus.com
Additional protections
The manual lists anti-emulator, Java code anti-debugging, resource name obfuscation, SSL pinning, watermarking, and a secure code execution environment.Read 9 Oct 2026 · jfxstore.com
Application servers
Listed application servers include Tomcat, TomEE, Glassfish, Jetty, WildFly, IBM WebSphere, Oracle WebLogic, and JBoss EAP.Read 9 Oct 2026 · licelus.com
Build integrations
Stringer can run from the command line and integrate with Ant, Maven, and Gradle; an Eclipse plugin is also listed.Read 9 Oct 2026 · jfxstore.com
Code protection
Features include hiding method calls, field types, and field access.Read 9 Oct 2026 · jfxstore.com
Desktop distribution
The distribution includes executable JAR command-line and GUI applications, a macOS app, and Maven and Gradle plugins.Read 9 Oct 2026 · jfxstore.com
Encryption
It can encrypt strings and application resources, including native libraries.Read 9 Oct 2026 · jfxstore.com
Enterprise limits
Some features and support for OSGI, WAR, EAR, and Eclipse RCP project inputs are Enterprise-only.Read 9 Oct 2026 · jfxstore.com
Feature limits
Some features are Enterprise-only; the feature matrix says starred features are additional and priced separately.Read 9 Oct 2026 · jfxstore.com
GUI limits
The GUI does not support all features, and the manual directs users to CLI, configuration files, or build plugins for full functionality.Read 9 Oct 2026 · jfxstore.com
Integrity
Integrity controls include certificate checks, JAR content checks, JAR sealing, runtime integrity checks, and tamper notifications.Read 9 Oct 2026 · jfxstore.com
Java runtime
Stringer runs under JRE 1.7 or later and can process applications compiled for J2SE 5.0 and later.Read 9 Oct 2026 · jfxstore.com
Offline operation
Licel says Stringer operates offline in an environment the customer controls.Read 9 Oct 2026 · licelus.com
Performance guidance
The manual recommends filtering protected classes, strings, and resources to manage possible performance impact.Read 9 Oct 2026 · jfxstore.com
Supported Java environments
The product page lists Java SE, Jakarta EE, Java ME, JavaFX, Eclipse RCP, and NetBeans RCP.Read 9 Oct 2026 · licelus.com
Supported targets
The manual lists Java SE, Java EE, Java Mobile, Java Embedded, OSGi frameworks, and Eclipse RCP applications as compatible targets.Read 9 Oct 2026 · jfxstore.com
Threat detection
The manual lists tamper notifications, anti-emulator, Java code anti-debugging, watermarking, and a secure code execution environment.Read 9 Oct 2026 · jfxstore.com
Trial and delivery
The maker advertises Stringer 9 for a 15-day free trial and says download details are emailed after requesting a trial license or purchasing licenses.Read 9 Oct 2026 · jfxstore.com
Trial and quote
The product page offers a 15-day trial and a quote request.Read 9 Oct 2026 · jfxstore.com

Plans and prices

Stringer Java Obfuscator Priced on request Quote required; trial is 15 days Read 9 Oct 2026 · jfxstore.com

Every Stringer Java Obfuscator plan and price →

Strong points and limits

Strong points

  • Encrypts strings and application resources.
  • Integrity checks and tamper notifications are listed.
  • Command-line use and Ant, Maven, Gradle integrations.
  • Runs offline in a customer-controlled environment.
  • Available for Linux, macOS, and Windows.

Limits

  • No free plan; pricing is on request.
  • Trial lasts 15 days.
  • The GUI does not support every feature.
  • Some features and project inputs are Enterprise-only.

Who it suits

Stringer suits teams protecting standalone, desktop, or enterprise Java applications that want offline operation and build-tool integration. It is also relevant where specific integrity or anti-tamper controls are needed.

Verdict

Stringer offers a broad set of Java protections and build integrations, with offline operation for customer-controlled environments. Buyers should check feature and project-input limits, since some capabilities require Enterprise and the GUI does not cover everything.

Where Specifiction places it

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