Free Twitter / X Tools
Free tools for X creators
No signup, no paywall, no upload — everything runs in your browser. Built and maintained by the team behind XposterAI.
Twitter Character Counter
Count characters the way X does — URLs weighted as 23, emojis as 2. Real-time, free, no signup.
Open tool →Twitter Thread Splitter
Paste a long post, get a clean numbered thread split on sentence boundaries — under 280 chars per tweet, copy-ready.
Open tool →Tweet Preview Generator
See exactly how your tweet will look on X — light or dark theme, with or without media. Free, no signup.
Open tool →Twitter Bold Text Generator
Convert plain text to Unicode bold / italic / bold-italic so it renders styled on X, LinkedIn, and Instagram. Copy with one click.
Open tool →Engagement Rate Calculator
Paste likes, replies, retweets, and your follower count — get your engagement rate, plus the median benchmark for your follower bracket.
Open tool →Best Time to Post on X
Auto-detected timezone plus weekday-aware recommendations for when to post on X.
Open tool →Hashtag Density Analyzer
Paste a tweet, see how many characters your hashtags consume, get flagged for overuse.
Open tool →Twitter Emoji Picker
Searchable, click-to-copy grid of every emoji and useful Unicode symbol that renders cleanly on X.
Open tool →