Overview

rev.ng turns binaries into syntactically valid, standard-compliant C and can infer structures—including linked lists, structs, arrays, and arrays of structs—from information across functions. That pairing gives analysts more to work with than decompiled code alone, while leaving them to judge whether an inferred structure fits the program.

The decompilation pipeline is Free Software, but the UI is a commercial product offered in cloud and standalone forms. The interface can run in a browser or as a standalone app, with the same experience in either mode. Since the UI is in closed beta, rev.ng is a better fit for users able to work within beta availability than for teams that need a broadly available interface.

Key features

Data-structure recovery: Interprocedural detection of linked lists, structs, and arrays can help explain how a binary organizes data; the output still needs interpretation in context.
Decompiler output: Standard-compliant C gives analysts a practical representation for further inspection. Native-code decompilation and debugger integration are also supported.
Architecture and import coverage: The features page includes x86, x86-64, ARM, AArch64, MIPS, and S390X by default. Imports include ELF, PE/COFF, Mach-O, DWARF, PDB, and IDB, making the stated coverage broad across architectures and file formats.
Automation and workflows: A client-server architecture exposes an HTTP API, and YAML files let users define functions, edit prototypes, and rename items. These controls suit repeatable or scripted analysis; a scripting API is also supported.
Project collaboration: Collaborators can share a project URL. Public projects allow two collaborators per project, while private plans include unlimited collaborators.

Pricing

rev.ng has a free plan, but the available plan choices differ in privacy, deployment, and collaboration. The private-project and standalone prices are TBD, so teams cannot yet weigh their total cost against their requirements.

Open source: Price not listed. Includes the open-source core, runs anywhere, supports private projects, and includes all architectures. This is the clearest fit for users who can work with the pipeline without relying on the commercial UI.
Public project: Price not listed; two collaborators per project. The collaborator cap and public-project model make it less suitable for confidential work or larger teams.
Private project: Cloud, all architectures, unlimited collaborators, and private visibility; billed TBD. It fits teams needing private shared projects, but the unknown price makes budgeting uncertain.
Standalone: Fully standalone and offline, all architectures, unlimited collaborators, and private visibility; billed TBD. This is the option for users requiring offline deployment, with the same pricing uncertainty.

The open-source plan trades the commercial UI for a pipeline that runs anywhere; public projects trade privacy and team size for a limited collaboration model. Private cloud and offline standalone plans add privacy and unlimited collaborators, but have no settled price. The UI itself remains in closed beta.

Platforms

rev.ng supports API, Linux, macOS, web, and Windows. Browser access and a standalone app provide different deployment routes, while the standalone plan is explicitly offline.

Who it's for

rev.ng suits reverse-engineering practitioners who value data-structure inference, multi-architecture coverage, and automation through an HTTP API or YAML workflows. It is also worth considering for teams that want project collaboration, provided public visibility and the two-person cap are acceptable or the private plan’s TBD price is workable. It is less suitable for users who need a generally available UI or a confirmed budget for private or offline use.

Pros and cons

Pros

Interprocedural structure recovery complements C decompilation with clues about how data is organized.
Six architectures are included by default, with a broad set of binary and debug-format imports.
HTTP API and YAML workflow controls support scripted and repeatable analysis.
Private and standalone plan descriptions include all architectures and unlimited collaborators.

Cons

The UI is in closed beta, limiting its suitability for teams that need dependable broad access now.
Private-project and standalone billing is TBD, making those choices difficult to budget.
Public projects allow only two collaborators per project, and the plan is not positioned for private project work.
The UI is commercial even though the decompilation pipeline is Free Software, so the product is not wholly open source.

Alternatives

Choose JEB if its free Community Edition, which includes x86 and x86-64 decompilation, fits research, student, hobbyist, or nonprofit reverse-engineering work; it also has a free trial.

Binary Ninja is a fit for evaluation or education users who can work within its free plan’s five architectures and lack of API or plugin access, or for buyers considering its perpetual Personal plan at 199.00 USD.

Pick Boomerang if a free, BSD-licensed decompiler is the priority.

Relyze is a Windows-only alternative with a Professional trial license and a 12-month-updates professional option.

IDA Pro offers a free plan for x86-32 and x86-64 disassembly with two cloud-based decompilers, or a paid Pro Essential plan at 1099.00 USD.

Choose RetDec for free, MIT-licensed open-source software.

Redgate SQL Provision is a different category alternative for provisioning or masking production data by capacity tier.

Bytecode Viewer is a free, GPL v3 Copyleft open-source option for Linux, macOS, and Windows.

Browse more options in Decompiler Software or Reverse Engineering Tools.

Verdict

rev.ng is a strong choice for reverse-engineering users who want C decompilation backed by structure recovery and configurable automation across several architectures. Its open pipeline and broad workflow capabilities are the main reasons to choose it; the closed-beta UI and TBD prices for private and offline plans are strong reasons to look elsewhere if availability or budget certainty matters.

	Krakatau	rev.ng
Free plan	Yes	Yes
Free trial	No
Paid from	Free	Free
Platforms	Linux	api, Linux, macOS, Web, Windows
Free plan	Yes	Yes
Native-code decompilation	No	Yes
Bytecode decompilation	Yes
License type	free	mixed
Debugger integration		Yes
Scripting API		Yes

Krakatau vs rev.ng

Krakatau

rev.ng