While using a CFR decompiler online is convenient, there are a few caveats to keep in mind:
The user uploads a .class or .jar ; the backend invokes: java -jar cfr.jar --outputdir /tmp/out uploaded.class cfr decompiler online
Since you are uploading compiled code, choose a reputable site that clears uploaded files after processing. While using a CFR decompiler online is convenient,
Reading raw text is hard; a tool that colors keywords, strings, and comments makes the code much easier to digest. CFR vs. Other Decompilers (Procyon, Fernflower, Jadx) a tool that colors keywords
It supports: