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B2R2

Free#23 of 72 in Reverse Engineering Tools

B2R2: A multi-architecture toolkit for building static binary-analysis workflows, not a source decompiler. Ranked #23 of 72 in Reverse Engineering Tools by our editors (6.4/10); pricing: Free plan; best for teams extending static analysis across architectures.

6.4/10Editor score

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B2R26.4 Visit B2R2

At a glance

Editor score
6.4 / 10
Pricing
Free plan
Best for
Teams extending static analysis across architectures
Free plan
Yes
Paid from
Free
Decompiler
No
Facts checked
23 Sep 2026

Where it wins
- Loads and parses binaries, disassembles code, and lifts instructions to an IR
- Supports CFG construction plus data-flow and semantic analysis
- Provides command-line utilities and extensible .NET/F# libraries
Where it doesn't
- Does not provide source-level decompilation
- Requires self-hosted setup and .NET/F# development
- Support is limited to community channels and documentation

Our verdict on B2R2

B2R2 is an open-source static binary-analysis framework written in F#, aimed at security researchers, reverse engineers, and developers building custom analysis tools. It combines binary loading and parsing with machine-code disassembly and instruction lifting to an intermediate representation. The published architecture list spans x86 and x86-64, ARM32 and ARM64, MIPS32 and MIPS64, PowerPC32 and PowerPC64, RISC-V, AVR, SuperH4, and EVM. It runs on Windows, macOS, and Linux. Its broad scope suits people who want a framework to build on rather than a turnkey source decompiler.

The analysis pipeline is the main draw: B2R2 can construct control-flow graphs and perform data-flow and semantic analyses, with command-line utilities for analysis tasks. Its .NET/F# libraries and public framework APIs give developers a way to extend workflows and tailor analysis to their own tools. That flexibility comes with a development-oriented profile: the project is self-hosted, and using its libraries means working within the .NET/F# ecosystem. Choose B2R2 when extensibility and architecture coverage matter more than a ready-made decompilation interface.

B2R2 is distributed as open-source software, so there is no paid plan tier to compare; prospective users can evaluate the project without a subscription. The trade-off is that it is primarily a static-analysis framework and does not provide source-level decompilation. Support is through community channels and documentation. Researchers or engineering teams comfortable assembling their own analysis workflow may find its combination of disassembly, IR lifting, and graph and data-flow analysis a fit. Those who need a source-oriented decompiler or vendor support should look elsewhere.

Your product? Our editors can test B2R2 in depth and publish a review, labelled as paid · from $149/mo →

B2R2 pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on github.com

B2R2 fact sheet

Free plan	Yes
Paid from	Free
Decompiler	No
Firmware analysis	Not verified
Analysis mode	Static
Plugin API	No
Supported platforms	Windows, macOS, Linux
Supported architectures	x86, x86-64, ARM32, ARM64 (AArch64), MIPS32, MIPS64, PowerPC32, PowerPC64, RISC-V, AVR, SuperH4, EVM
Deployment	Self-hosted
Platforms	Windows, macOS, Linux
Support	Community, Docs
Built for	Solo, Small business, Mid-market, Enterprise (editorial estimate)
Pricing	Free plan
Website	github.com
Facts checked	23 Sep 2026

Alternatives to B2R2

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Featured on iTechGuides

B2R2 is listed in our Reverse Engineering Tools directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update