Language python
OSS-Fuzz project link
Project repository link
Build status: Fuzzers succeeding: Build log
Build status: Code coverage succeeding: Build log
Build status: Fuzz Introspector succeeding: Build log
Fuzzer count 1
Lines of code 1401
Lines covered 1082
Code coverage 77.23%
Code coverage report Report link
Static reachability 24.53%
Fuzz Introspector report Report link (from 2025-08-28)

Historical Progression

Functions of interest to fuzz

This section outlines functions that may be of interest to fuzz. They are based on ranking functions that have a lot of complexity but currently exhibit low code coverage. The complexity is calculated based on the function itself as well as the functions called by the given function, i.e. the tree of code that the function triggers.


This is only a minor amount of introspection information available for this project. Please consult the Fuzz Introspector report for more information, e.g. the introspection table of all functions in the target project available here.

Function name Function source file Accumulated cyclomatic complexity Code coverage
charset_normalizer.cli.__main__.cli_detect charset_normalizer.cli.__main__ 419 0.0%
charset_normalizer.api.is_binary charset_normalizer.api 335 0.0%
charset_normalizer.legacy.detect charset_normalizer.legacy 333 0.0%
charset_normalizer.api.from_path charset_normalizer.api 331 0.0%
charset_normalizer.api.from_fp charset_normalizer.api 325 0.0%
...fuzz_normalize.TestOneInput ...fuzz_normalize 322 0.0%
charset_normalizer.models.CharsetMatch.language charset_normalizer.models 65 0.0%
charset_normalizer.utils.cp_similarity charset_normalizer.utils 25 0.0%
charset_normalizer.models.CharsetMatch.alphabets charset_normalizer.models 21 0.0%
charset_normalizer.utils.set_logging_handler charset_normalizer.utils 21 0.0%