Top 9 C++ Decompiler Projects

pycdc

3 2,841 7.9 C++

C++ python bytecode disassembler and decompiler
rz-ghidra

2 788 5.3 C++

Deep ghidra decompiler and sleigh disassembler integration for rizin
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
rellic

5 511 5.5 C++

Rellic produces goto-free C output from LLVM bitcode

Project mention: Understanding Objective-C by transpiling it to C++ | news.ycombinator.com | 2023-12-02

Yagi

3 437 0.0 C++

Yet Another Ghidra Integration for IDA
wasmdec

5 389 0.0 C++

WebAssembly to C decompiler

Project mention: Capturing the WebGPU Ecosystem | news.ycombinator.com | 2023-11-11

I think you're missing a good amount of nuance here
minified JS can be turned into reasonable JS, yes, but you're probably not going to get TypeScript code back, so the same sort of challenge exists there.
Assembly -> high-level language is harder, but there are absolutely binary -> C decompilers that are very popular/used in the RE community to make changes to existing programs.
But that doesn't even matter, WASM is much higher level than assembly, it's a stack machine, there is no arbitrary control flow / labels / `goto`, there are pre-defined data types, etc. all of this means it's easier to convert WASM -> high-level language than it is with a generic x86/arm binary.
There are WASM decompilers[0][1] which can convert WASM binaries into C code and back.
In both cases (minified JS and WASM), you're not going to get out exactly what you put in, but WASM doesn't really change the situation very much given the widespread adoption of 'compile to JS' languages like TypeScript these days.
[0] https://chromium.googlesource.com/external/github.com/WebAss...
[1] https://github.com/wwwg/wasmdec

boomerang

1 364 4.5 C++

Boomerang Decompiler - Fighting the code-rot :)
jsxer

1 127 4.5 C++

Jsxer is a fast and accurate decompiler for Adobe ExtendScript Binary (JSXBIN) files, featuring JsxBlind deobfuscation.
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
luauDec

1 57 0.0 C++

Decompiler for luau (https://luau-lang.org/)
tube-game-dos

3 20 0.0 C++

My first reverse engineering game

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).