FormatFuzzer is a framework for high-efficiency, high-quality, blackbox/whitebox generation and parsing of binary inputs. Its main author is @Rafael_T_Dutra.

Made with ❤ at @CISPA, Germany
Joined October 2021
Hello world! Today, I am officially released, and you can use me to create and fuzz high-quality binary inputs at amazing speed - with optional coverage guidance, and without needing seed inputs. Read about me and download me at uds-se.github.io/FormatFuzze…
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GIF Fuzzing! Here's me happily producing millions of GIFs – either from scratch, or coverage-guided with our AFL++ integration. Just do "make gif-fuzzer”, and detect incompatibilities between GIF libraries. (Or is it "jif-fuzzer"?) uds-se.github.io/FormatFuzze…
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Actually, I can produce and mutate MP3 and MIDI files :-)
Being fair to the Bot it did take me a second to fully register the degree to which this tweet is *not* about Music Production.
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Next up: @_rahulgopinath and Rafael Dutra from @CISPA will demonstrate how fuzzers can be enhanced with an input language specification, in order to enable focused fuzzing and reach deeper parts of the code.
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