Risk review
Identify outdated resource handling, typing gaps, compatibility concerns, and behaviour that needs characterization tests.
Free Tools / Infrastructure & Architecture
Python Legacy Code Modernizer
Find risk hotspots and produce a reviewable Python 3.12 rewrite without sending source code to a third-party AI provider.
0 / 12,000
Your modernization report will appear here
A bounded first pass for legacy code
Modern rewrite
Generate Python 3.12 code with type hints and standard-library patterns while preserving observable behaviour.
Private processing
Code is processed on Framz-owned hardware, is never executed, and is not stored after the request.
Legacy Migration Playbook
How we derisk and sequence full-repo modernisation projects.
Sent to the work email you verified for tool access. No newsletter, no spam — ever.
Frequently asked questions
What Python can the modernizer handle?+
It is designed for one Python function or compact script up to 12,000 characters, including common Python 2 syntax and older Python 3 patterns.
Does it execute submitted code?+
No. Submitted code is treated as text for analysis and rewriting. It is never executed by the tool.
Where is my source code sent?+
The analysis runs on Framz-owned AI hardware through a protected endpoint. It is not sent to a third-party model provider, and submitted code is not stored.
Can I deploy the generated rewrite directly?+
No automated rewrite should bypass review. Add characterization tests, compare observable behaviour, review security-sensitive changes, and stage the deployment.
Why does the tool limit input size?+
Small, bounded units produce more reviewable output and keep the analysis within the web request time budget. Full repositories need dependency, test, and migration planning beyond a single rewrite.
Modernising more than one script?
Framz maps dependencies, preserves behaviour with tests, upgrades runtimes, and stages production migrations without a risky big-bang rewrite.
Plan your modernisation