Most "free online converters" I’ve found seem outdated or untrustworthy. Has anyone successfully used a specific tool or script recently that can handle the modern EX4 encryption?

The safest way to get the MQ4 file is to contact the original author of the EA or indicator. Study Open Source:

Older tools like "EX4 to MQ4 Decompiler 4.0.432" or similar versions (often found in older forums) are sometimes used for older files, though they fail on modern builds. Fixing Broken Output (Deobfuscation): Decompiled code often has confusing variable names (e.g.,

Most websites claiming to offer a "free online fix" for EX4 files are either outdated or dangerous.