edb

edb is a debugger published by the edb-debugger project under the GPL-2.0 license, described by its publisher as a debugger for reverse engineers. That audience distinguishes it from debuggers used mainly during development: the intended work is inspecting compiled programs whose source is unavailable, following execution through machine code, and reading the state of a process as it runs.

The record here does not enumerate capabilities, so the supported processor architectures, executable and object formats, disassembler backend, scripting or plugin interfaces, and the extent of the graphical interface are all unspecified. Anyone evaluating it for a specific target — a particular binary format or instruction set — should confirm those points in the project's own documentation.

Platform coverage listed in this entry is Linux only, which also bounds the debugging targets it can attach to locally. GPL-2.0 is a copyleft license: source must accompany redistribution, and derivative works distributed to others carry the same terms, which is relevant if you intend to build separate tooling on top of it.