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Obfuscate Python before you ship it, and still be able to debug what you shipped.
pyobfus handles multi-file projects: names are renamed consistently across
modules, imports are rewritten to match, and Community output is ordinary
.py. Keep the mapping file private, and pyobfus --unmap
turns a production traceback back into your original names.
Community Edition is free and has no file or line limits.
pip install pyobfus
Protection is useful only when the resulting software can still be shipped, checked and supported.
Community handles real multi-file projects, renaming consistently across modules and rewriting imports, with no file or line cap and no trial clock. Optional project limits are your CI safety rails, not an upgrade gate.
Obfuscation normally makes production reports useless: a customer sends
you a stack trace full of I0 and I7. pyobfus keeps
a mapping, so --unmap turns that trace back into your original
names. The mapping stays with you; the customer only ever gets the
obfuscated build.
Preview selection and artifacts, scan compatibility risks, verify generated syntax, and retain reproducible build reports and provenance instead of trusting an opaque one-way command.
Your source stays local and Community emits ordinary cross-platform
.py. Runtime-backed Pro artifacts ship the separate pure-Python
pyobfus-runtime, never the proprietary builder or a native build matrix.
No telemetry; every network request is listed.
Threat-model limits, advisory-only compatibility and non-cryptographic deterrents are labelled honestly. Tested claims link to evidence rather than being presented as guarantees.
Nothing to sign up for.
# Free, no limits on files or lines
pip install pyobfus
pyobfus src/ -o dist/ --save-mapping mapping.json
# Later, when a customer sends you an obfuscated traceback
pyobfus --unmap --trace trace.txt --mapping mapping.jsonStart with the task you need to complete; the detailed reference stays in the docs.
Obfuscate a file or a complete project with framework-aware presets.
See the canonical example →Restore original identifiers in a shipped traceback while keeping the mapping private.
Debug a traceback →The free edition is a complete tool, not a demo.
--unmap)One payment. No subscription, no renewal.
$45 USD, one time
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Secure checkout via Stripe. Your licence key arrives by email. 30-day money-back guarantee.
# 5 days, no registration, no credit card
pyobfus-trial start
# After you buy
pyobfus-license register PYOB-XXXX-XXXX-XXXX-XXXXEvery item here is verifiable without taking our word for it.