07 tools
Text
Word counts, case, line cleanup and other text chores.
What belongs in this group
These are the jobs that sit between a document and a deadline: counting what you have written against a limit, normalising a column of labels that arrived in four different shapes, killing duplicate rows before an import, or reversing a string to find out whether a pipeline is corrupting it. None of them need a server, which is why all six run entirely in the page.
Which one to open
If the question is "how long is this", start with the word counter — it reports words, characters and CJK characters separately, because those three numbers disagree by a factor of three. If the question is "why does this look wrong", the case converter and the line tools are usually the answer: most text that looks broken is a spacing or casing problem rather than a content problem. For structural edits across many lines, the find-and-replace tool previews every match before touching anything, which is the difference between a rename and an incident.
Why the results are trustworthy
Every operation here is deterministic and local: the same input gives the same output, nothing is sent anywhere, and no result is cached between visits. If you need to check that a transformation is reversible, run it twice — the reverse tools are designed to make that test trivial.