Guides
Short, practical guides to writing, counting and posting. Each one ends with a way to check your own text in Gren.
- How to remove hidden characters from ChatGPT and other AI textWhat the invisible characters in copied AI text are, why they matter, and how to remove them in one paste.
- Character limits for LinkedIn, Instagram, Threads, Bluesky and X in 2026Every post limit in one table, where each platform cuts your post off behind "more", and how each one counts.
- How long does it take to read or say 1,000 words?Reading and speaking times from 100 to 10,000 words, words for a speech, and pages per 1,000 words.
- How to make AI writing sound like youThe habits that give AI drafts away, from em dashes to stock phrases, and how to fix each one.
- How to remove line breaks from text copied from a PDF or emailWhy text from PDFs and emails breaks mid-sentence, and how to join the lines back up in one go.
- How to remove the asterisks and hash signs from ChatGPT textWhy ** and ## turn up in text copied from ChatGPT, and how to paste it clean with your lists kept.
- How to change text to uppercase, lowercase, title case or sentence caseThe four cases, when to use each, and how to switch between them in one go.