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RetDec vs Hopper Disassembler: catalog facts
RetDec	Hopper Disassembler

Best for: Reverse engineers and malware analysts who want a free decompiler	Best for: Reverse engineering macOS and iOS binaries on a Mac
Free Free and open source under the MIT licence.	Paid Paid license, with a free trial available.
Windows, Linux, Command line	macOS
Free decompiler under a permissive licence Built on LLVM and retargetable across architectures Dockerfile provided for reproducible builds	Assembly, CFG and pseudo-code views side by side Swift name demangling and Objective-C selector extraction LLDB and GDB debugging support MCP server for connecting language models
Project is in limited maintenance mode Command-line tool with no graphical interface Intended for authorized analysis of software you are allowed to examine	Mac only, requires macOS 12.4 or newer Paid after the trial
Downloadable app	Downloadable app
Open source	Not open source
License: MIT	License: Proprietary
No account needed	Not stated if an account is needed
Offline features available	Not stated if it works offline
Official website Full listing and sources Sources for RetDec retdec.com github.com/avast/retdec Catalog checked October 2, 2026	Official website Full listing and sources Sources for Hopper Disassembler hopperapp.com Catalog checked October 1, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.