Protect your Go source code from reverse engineering. Symbol renaming, string encryption, and dead code injection make your Go programs resistant to analysis.
A Go binary looks opaque but leaks more than most developers expect. The runtime keeps type metadata, function names survive unless stripped, and string literals sit in plain view of the strings command. Linker flags help a little and hide a lot less than their reputation suggests.
Joker obfuscates your Go at the source level before it ever compiles: symbols renamed, string literals encrypted and decoded at runtime, and dead code injected to raise the cost of analysis. The output builds with the normal go toolchain, no special linker or fork required, and pairs well with build-time tools like Garble.
Functions, variables, and type names renamed to unreadable identifiers throughout the codebase.
String literals encrypted and decoded at runtime. Static analysis tools can't extract strings.
Realistic but non-functional code blocks injected to confuse analysis and increase reverse engineering cost.
Output compiles normally with go build. No special toolchain required.
Where source obfuscation and build stripping each help.
| Typical tools | Joker | |
|---|---|---|
| Stage | Build time / link time | Source level, pre-compile |
| -s -w flags | Strip some symbols | Also encrypts strings, adds dead code |
| String literals | Remain unless handled | Encrypted |
| Toolchain | Standard or forked | Standard go build |
| Combine with Garble | n/a | Yes, complementary |
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Go binaries contain significant metadata, function names, type info, and string literals are easily extracted. Source-level obfuscation before compilation removes this.
Garble works at build time. We provide online source-level obfuscation with string encryption and dead code injection that Garble doesn't offer.
Yes. Obfuscate individual .go files. Import paths and module structure are preserved.