Social Media Text Formatter — Bold, Line Breaks & Threads for Every Platform
LinkedIn, X and Instagram give you no bold button — this formatter styles your words with Unicode characters that survive the paste, counts them honestly (graphemes, not UTF-16 units, plus X's weighted rules), previews the 'see more' fold, splits long posts into threads, and never breaks your links, @mentions or #hashtags while it styles.
When you copy, blank lines get an invisible filler character (U+3164) so Instagram and LinkedIn can’t collapse your paragraph gaps. Your draft here stays clean.
Character limits — counted honestly
Post limit
62 over the limit
Caption limit
Post limit
Caption limit
Post limit
Description limit
text.length count UTF-16 units and get all of those wrong.Feed preview
Hook check — 6/6
Your first lines decide who taps “…see more”.
- Opening line under 60 characters57 / 60 characters
- Opening stands on its own lineFollowed by a blank line
- Starts with words, not a hashtag or linkOpens with words
- Hook fits before the “…see more” fold (~210 chars)57 characters in the opening block
- No announcement cliché in the openingNo cliché found
- Hashtags sit after the opening blockOpening block is hashtag-free
21 Unicode styles
Shown on your first line. Click a card to apply it to the whole post; the copy icon copies the whole post in that style. Styling never touches your links, @mentions or #hashtags, so they can’t break.
Clean up
Fix the mess pasted drafts arrive with. Every step is undoable.
Lists
Convert lines of the post into a list — existing bullets and numbers are replaced, not doubled.
Hashtags — 3 found
PascalCase tags (#BuildInPublic, not #buildinpublic) are read word-by-word by screen readers.
Thread splitter
Exciting news — we just shipped our biggest update yet! 🚀 Three things changed: - Dashboards that load before your coffee cools - Payroll that practically finishes itself - Reports your manager will actually read আমাদের টিমের সবার জন্য ধন্যবাদ — this one is for you. Full 1/2
story: https://silixen.shop #ProductLaunch #BuildInPublic #SaaS 2/2
Convert
Paste a ChatGPT or Markdown draft (**bold**, *italic*, # headings, - bullets) and turn it into styled Unicode in one click — the formatting LinkedIn and X can actually display.
WhatsApp already has real formatting (*bold*, _italic_, ~strike~), so the WhatsApp copy converts your styled text into that native syntax instead of Unicode look-alikes — it renders identically on every phone and stays readable to screen readers.
How to Use
- 1Write or paste your post — or paste a ChatGPT/Markdown draft and convert it in the Convert panel.
- 2Select a phrase and style it (bold, italic, 21 styles), or style the whole post from the gallery.
- 3Check the seven platform limits, the feed preview's fold marker and the hook check; split into a thread if needed.
- 4Copy with Instagram-safe blank lines and paste into the platform — links, mentions and hashtags stay intact.
Key Features
- ✓
Styling that can't break your post
Every formatter on the web will happily turn your #hashtag, your @mention and your link into fancy Unicode characters — and silently break all three. This one protects them: apply any of the 21 styles to a selection or the whole post and links, mentions and hashtags are skipped automatically, so what you paste still clicks, still notifies and still tags.
- ✓
Character counts that are actually true
Most counters use text.length, which counts UTF-16 units: a family emoji counts as 8+, a Bengali conjunct counts as 3, and X's real rules are ignored entirely. This tool counts grapheme clusters (what a reader sees as one character) for six platforms and X's published weighted rules — link = 23, emoji and styled letters = 2 — for X, and shows all the counts side by side.
- ✓
The fold, visible before you post
LinkedIn buries everything after roughly 210 characters behind “…see more”. The live preview shows exactly where your post folds, and the hook check grades your opening the way the paid extensions do — line length, clichés, hashtags and links before the cut — except here it is free and works for every platform, not just one feed.
- ✓
Threads without the scissors
Write past 280 characters and the splitter cuts your draft into numbered X posts automatically — on word boundaries, with the counter budgeted in, and links and hashtags never sliced in half. The same post can be re-split for Threads' 500-character limit. Copy parts one by one or the whole thread at once.
- ✓
ChatGPT drafts in, platform posts out
AI assistants hand you Markdown — **bold**, # headings, dash bullets — that LinkedIn and X display as literal asterisks. One click converts it to styled Unicode, the cleanup tools fix the spacing mess AI drafts arrive with, and the WhatsApp copy converts your styling into WhatsApp's own native markdown, which renders better than Unicode ever will there.
- ✓
Private by architecture, not by policy
The formatter runs entirely in your browser; there is no upload endpoint to trust and nothing to delete afterwards. Your draft autosaves to this device only, and the tool installs as its own app so it keeps working offline. Server-side formatters ask you to believe a promise; this one removes the need.
Frequently Asked Questions
How do I bold text in a LinkedIn post?
Why do my line breaks disappear on Instagram or LinkedIn?
Why does this tool count characters differently from other counters?
Does styled Unicode text hurt accessibility or search?
What are the character limits for each platform?
Can I split a long post into an X thread automatically?
I pasted a ChatGPT draft full of asterisks — can you convert it?
Is this tool free, and is my text uploaded anywhere?
Why social posts need a formatter at all
LinkedIn, X, Instagram and Facebook all hand you the same plain text box. There is no bold button, no italic, no heading — yet the posts that stop thumbs are visibly structured: a bold hook, short paragraphs, clean lists. The workaround the whole industry uses is Unicode. The character standard already contains styled twins of the Latin alphabet — mathematical bold, italic, script, monospace and more — and because they are real characters rather than formatting instructions, they survive copy and paste into any platform. Select a phrase, swap its letters for styled twins, and the emphasis is baked into the text itself. That trick is simple; doing it well is where most tools cut corners, and the corners they cut are exactly the ones that hurt you: they style your hashtags and links into oblivion, count your characters wrong, and let you discover the “…see more” fold only after you have published.
Format a post in four steps
1. Write or paste. Draft directly in the editor, paste a post from anywhere, or paste a Markdown draft from ChatGPT and convert it in the Convert panel. 2. Style what matters. Select a phrase and press Bold or Italic — or style the whole post from the gallery of 21 Unicode styles. Your links, @mentions and #hashtags are protected automatically. 3. Check it like a reader. Watch the seven platform limits, the feed preview with its fold marker, and the hook check's six grades. If the post runs long, the thread splitter cuts it into numbered parts. 4. Copy and paste. Copy with Instagram-safe blank lines switched on and the paragraph gaps you wrote are the gaps your readers get; copy for WhatsApp and the styling becomes WhatsApp's native markdown instead.
Counting characters honestly: graphemes, weight, and why text.length lies
Ask three tools how long your post is and you will get three answers, because “character” means different things. JavaScript's text.length counts UTF-16 code units: the family emoji 👨👩👧👦 counts as 11, a flag counts as 4, and the Bengali conjunct ক্ষ — one visible letter, three code points — counts as 3 code units plus a sign. This tool counts grapheme clusters with Intl.Segmenter: the units a reader actually sees, so the family emoji is 1, the flag is 1, ক্ষ is 1. X is its own case: it weighs text, counting every URL as 23 characters and emoji, CJK and styled Unicode letters as 2 each, so a fully bolded 200-letter post can silently blow the 280 limit — the X counter here follows those published rules exactly. Styled letters weigh double on X, which is one more reason the meter on this page tracks what share of your post is styled: past about a quarter, you are paying double for characters that screen readers may skip entirely. For neighbouring counting tasks — essays, articles, scripts — the word counter covers the long-form ground.
The hook, the fold and the thread
On LinkedIn, roughly the first 210 characters — about three lines on a phone — are all a scrolling reader sees before “…see more”. Everything the hook check grades follows from that one fact: an opening line under 60 characters, standing on its own line, starting with words rather than a hashtag or a link, free of “excited to share” clichés, with hashtags parked after the fold where they do discovery work instead of hook work. The preview renders that fold on your actual draft, not on sample text. And when the idea genuinely needs more room than one post, the answer is a thread, not a wall: the splitter respects word boundaries, keeps URLs and hashtags whole, budgets the “3/7” numbering into every part, and re-splits the same draft for Threads' longer 500-character limit. If the post is really the start of a campaign, the hashtag generator and share link generator cover the distribution side of the same workflow.
Use styled text wisely — and the honest limits
Styled Unicode is a substitute, not a font, and it has real costs this page will not hide from you. Screen readers may read styled letters one by one or skip them, so never style information a reader needs — names, prices, links, the point itself. Platform search reads 𝗺𝗮𝗿𝗸𝗲𝘁𝗶𝗻𝗴 as symbols, not as the word “marketing”, so keywords and hashtags stay plain (this tool enforces that for hashtags whether you remember or not). Rare styles — Fraktur, script, double-struck — can render as empty boxes on older phones; bold and italic are the safe pair. Two deliberate limits: there is no AI rewriting here, because sending your drafts to a model would break the nothing-leaves-your-browser design; and there is no browser extension, because the per-tool app install gives you the same one-tap access without permission to read every page you visit. Format the hook, keep the body honest, and the post does the rest.
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