About PostTruncate
PostTruncate exists for one reason: the first line of your post is the only line most people read, and every platform cuts it off in a different place. We make those invisible limits visible.
What it does
Write or paste a draft once, and PostTruncate renders it the way LinkedIn, X, Threads, Instagram, and Facebook actually will — the “…see more” fold, the 280-character thread split, the 23-character link weighting, the 5-hashtag ceiling. You see exactly what survives above the fold before you commit to publishing.
It also catches the quiet problems that shrink your reach: invisible zero-width characters that break counts and screen readers, and pseudo-Unicode “fancy fonts” that look styled but are unreadable to assistive tech.
Why we built it
Most character counters tell you a single number. Creators need more than that — they need to know where the text gets cut on each network, because that’s where the hook lives or dies. We wanted one workspace that simulates every platform at once, runs instantly, and respects your privacy completely.
Built privacy-first
Everything runs in your browser. Your text is never uploaded, there are no accounts, and the tool is free to use. It’s supported by unobtrusive ads in reserved spaces that never shift the layout. Read the full details in our Privacy Policy.