Tools
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Text tools
Most people counting text are counting against a specific ceiling, and the ceilings are not interchangeable. A meta description gets truncated by search engines somewhere around 155 to 160 characters. An SMS splits at 160. Academic abstracts are commonly capped at 250 or 300 words. Social platforms and ad formats each have their own limit. Knowing which one applies tells you whether to watch the word count or the character count.
Where it goes wrong is the assumption that a word count is an exact, universal number. It is not. Tools disagree over hyphenated compounds, standalone numerals, and text split across line breaks, so two honest counters can differ by a percent or two on the same passage. For a soft target that is irrelevant; for a hard cutoff that rejects your submission, leave yourself a margin and verify against the destination.
Worth knowing before you start, rather than after.
Word and character counts are a guide, not a substitute for the limit enforced by your destination system.
Text to Binary uses UTF-8 bytes, not UTF-16 code units or classic “ASCII binary” tutorials.
ASCII tools offer strict 0–127 mode or full Unicode code points — pick the mode your spec names.
Markdown preview is sanitized; HTML to Markdown may not preserve complex tables.
The diff checker uses stacked inputs and a unified highlight — not a Git-style side-by-side merge.
Line shuffle uses Fisher–Yates with crypto randomness, not a biased sort-by-random comparator.
Text is processed in memory, so extremely large documents may make the tab slow.
No offline mode: there is no service worker, so the page must load over the network.
No. Counting, comparing, and converting all happen in your browser's memory, and the text is gone when you close the tab. That matters here because text tools are so often used on drafts, applications, and client work that has not been published.
Counters disagree on edge cases: hyphenated compounds, standalone numbers, text separated by line breaks rather than spaces, and whether headings and captions count. If you are writing to a hard limit, check against the system you will actually submit to.
Yes, which matches how most platform and form limits work. If a form specifies a limit without saying whether spaces count, assume they do and leave yourself a margin.
Yes, in both directions. Round-tripping is not lossless though: Markdown has no single canonical form, so converting HTML to Markdown and back can produce different but equivalent markup.