API

POST /api/v1/obfuscate

Upload a single .NET assembly (up to 100 MB). Responds with the obfuscated binary as application/octet-stream.

Headers

• X-Api-Key: your Pro API key (fo_live_…)

Form fields

• file: the .dll or .exe (multipart/form-data)
• renamePublic: true/false — obfuscate public names. Applied only to assemblies with an entry point (applications); ignored for libraries.
• encryptStrings: true/false — encrypt string literals so URLs and messages are not readable in a decompiler.
• controlFlow: true/false — reorder method bodies into tangled goto flow. Methods with exception handlers are left unchanged.
• hideReferences: true/false — route calls to external static methods through generated proxies so the real API is hidden at the call site.
• virtualize: true/false — compile methods you mark with a [Virtualize] attribute (or [Obfuscation(Feature="virtualization")]) into a private VM; only marked methods are affected. Much slower at runtime, so reserve it for a few critical methods.
• integrityCheck: true/false — add a tamper-detection self-check over the virtualized bytecode, coupling the virtualized methods so patching the compiled output breaks them rather than running altered logic. Only has an effect together with virtualize.
• antiIldasm: true/false — add SuppressIldasmAttribute to block the legacy ildasm tool.
• includeMap: true/false — return a .zip containing the obfuscated assembly plus a .map.txt rename map, instead of the raw binary. The map lets you decode crash stack traces back to your original names; it is generated in memory and never stored on our servers. The response Content-Type is application/zip when this is set.

Example

curl -X POST https://freeobfuscator.com/api/v1/obfuscate \
  -H "X-Api-Key: fo_live_xxxxxxxxxxxxxxxx" \
  -F "[email protected]" \
  -F "renamePublic=true" \
  -o MyApp.obfuscated.exe

Responses