AFL++ vs Timely Dataflow
AFL++
github.comTimely Dataflow
timelydataflow.github.ioSide by side
| Figure | AFL++ | Timely Dataflow |
|---|---|---|
| Price from | €1,666.67/mo | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| Android | Yes | — |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 0 |
| Spec score · Stream Processing Software | 8.9 (#3) | 6.6 (#23) |
| Purpose | AFL++ is a coverage-guided fuzzer that mutates input and checks whether it reaches a new path in the target binary. | Timely Dataflow is a system for implementing distributed streaming computation and a way to structure computation generally. |
Plans
In their own words
AFL++
AFL++ is a coverage-guided fuzzer that changes input and checks whether a target binary reaches a new execution path. Its afl-cc compiler supports LTO, LLVM and GCC_PLUGIN instrumentation. The project also lists collision-free coverage, AFLfast++ power schedules, MOpt mutators, laf-intel and redqueen. Documentation covers source-available software, binary-only targets, network services and GUI programs, with build options for source-only, binary-only or combined distributions. A Docker image supports x86_64 and arm64; its example mounts target source at /src. On Linux, the installation guide recommends LLVM 18 or newer and gives LLVM 14 as the minimum. macOS build guidance covers x86_64 and arm64, but afl-clang-lto, afl-gcc-fast and qemu_mode do not work there. Fuzzing can strain hardware, consume substantial memory or disk, and create heavy filesystem activity. AFL++ is available free under AGPL terms; modified versions offered as network services must provide users the corresponding source. A commercial license is listed at €20,000 a year.
Timely Dataflow
Timely Dataflow has no write-up on Specifiction yet; its figures are above.