This is worth setting out fairly, because ShellExView is a good tool and the honest comparison is about coverage and workflow rather than quality.
Coverage. ShellExView enumerates classic COM shell extensions from registry registrations, and does it well — including the kinds of registration that are easy to miss. What it does not reach is the Windows 11 modern menu. Those commands are declared in application package manifests and registered into a packaged-COM catalogue, so they are not present as ordinary class registrations. The New submenu is likewise a separate surface with its own registration mechanism. ContextCleaner enumerates all four: classic verbs, COM handlers, packaged commands, and New-menu registrations, presented as one list.
Provenance. Both resolve a handler to a backing file. ContextCleaner additionally records where each entry was discovered, which file types and click contexts it applies to, whether it is built-in or third-party, and — for handlers that register no usable friendly name — the label the handler itself reports, obtained out of process so a faulty handler cannot bring the app down.
Write model. ShellExView applies changes as you make them. ContextCleaner stages changes as pending and writes nothing until you press Apply, which means a review step and a single elevation prompt for a batch rather than repeated prompts.
Reversal. This is the largest practical difference. ShellExView is an enumeration and toggle tool; it does not take snapshots or maintain a change history, which is entirely reasonable for what it is. ContextCleaner writes a `.reg` snapshot before each apply and aborts the apply if the snapshot fails, keeps undo and redo on disk for up to 25 records each so they survive restarts, and records every action in a hash-chained local log.
Guardrails. ContextCleaner refuses removal of the entries File Explorer needs to open folders, drives, and network locations, enforced in the write layer rather than the interface, so a bulk action cannot route around it. Re-enabling is always allowed.
Where ShellExView remains the sensible choice. It is free, it is a single small executable with nothing to install, and if your task is inspecting or toggling classic COM handlers on a machine you are not managing long-term, it does that directly. If you need the modern menu or the New submenu, want a review step before writes, or want changes to be reversible days later, that is where the difference matters.
One claim neither tool makes honestly: neither measures how long handlers take to load. ContextCleaner reports no timings and makes no performance claim.