Reconstruct the
source code
of any VB app
VBReFormer is the only all-in-one decompilation suite for Visual Basic 5 & 6 — disassembler, decompiler and compiled-UI editor in a single tool. Supported binary formats : .exe · .dll · .ocx · .scr
The Free edition shows what the engine reconstructs from your binary — before you buy.
Designed, published and hosted in France.
743,996+
downloads
1,700+
licenses sold
27
years of expertise
A trusted European software vendor
VBReFormer has been designed, built and maintained in France since 2000 — EU jurisdiction, GDPR compliance, and a fully European supply chain.
Designed in Toulouse (Haute-Garonne) and Savoie
What VBReFormer does
VBReFormer is the only all-in-one decompilation suite for Visual Basic 5 & 6 — disassembler, decompiler and compiled-UI editor in a single tool.
- // VB6 disassembler — Identifies every procedure, form, module and class inside your compiled binary. Converts machine code into readable assembly with full syntax highlighting.
- // Decompiler — Converts Native Code binary back into Visual Basic source. Reconstructs runtime calls, variable declarations and object interactions — up to 80 % of the original logic.
- // Design Editor — Edit the compiled UI directly — no size limitation. The only tool on the market that does this without recompilation.
- // Forms, Modules, Classes, UserControls
- // Assembly language output
// Supported binary formats
Gen2: Windows 10 · 11 — Gen1: Windows XP → 11
Decompiler
Converts Native Code binary back into Visual Basic source. Reconstructs runtime calls, variable declarations and object interactions — up to 80 % of the original logic.
VB6 disassembler
Identifies every procedure, form, module and class inside your compiled binary. Converts machine code into readable assembly with full syntax highlighting.
- //Forms, Modules, Classes, UserControls
- //Assembly language output
- //Search engine across disassembly
Decompiler
Converts Native Code binary back into Visual Basic source. Reconstructs runtime calls, variable declarations and object interactions — up to 80 % of the original logic.
- //Native Code → VB6 source
- //15,000+ Win32 API declarations
- //~80 % of the logic reconstructed
Design Editor
Edit the compiled UI directly — no size limitation. The only tool on the market that does this without recompilation.
- //Edit .frm, .ctl, .ocx in-place
- //Replace embedded resources
- //No size limit (unique)
How it works
Load your binary
Open any VB5/VB6 .exe, .dll, .ocx or .scr file. VBReFormer instantly analyses the PE structure and identifies all VB objects.
Explore & decompile
Browse the disassembled code, extract UI design files, and run the decompiler on Native Code procedures.
Export & rebuild
Export the resulting .frm, .bas and .cls files into a new VB project. Edit the binary UI without recompilation.
A French decompiler, from design to hosting
VBReFormer is designed, developed and hosted in France. Generation 2 installs on your Windows machines and entrusts its decompilation to our French servers; the previous generation works entirely offline.
Hosted in France
The generation 2 engine runs on our servers, in France. Your binary is analysed there, then erased with the session: nothing is kept. Generation 1 leaves no machine.
European origin and jurisdiction
Edited and developed in France, VBReFormer falls under EU jurisdiction and is backed by EU-based support. You control where your tools come from.
GDPR-aligned by design
One processing operation, one party, under French law: no non-EU subprocessor to account for, no transfer to frame. An auditable footprint that fits regulated environments.
For defence, government and critical-infrastructure teams, the origin and jurisdiction of a tool are part of the specification. VBReFormer answers both. If your binaries must leave no machine at all, write to us: that configuration is studied case by case.
A French ecosystem of reverse engineering and cybersecurity.
Ready to decompile?
Licenses start from 79 € for personal & small business use. One license, all three tools.
1, 2 or 3-year licence · support and updates included