Free X Tools
Everything on this page runs in your browser or on our AI, without an account. X has no formatting for free accounts; bold and italic are a Premium feature, and even then they do not show for everyone. X does not simply count characters. The tools below handle the formatting, counting, previewing and writing; the scheduler handles the posting.
Write & format
Preview & mockups
AI generators
Counters & checks
Calculators
X limits and sizes at a glance
X does not simply count characters. Every link counts as 23 regardless of length, most Latin letters and punctuation count as 1, and emoji, CJK characters and styled Unicode letters count as 2. This counter uses that weighting, which is why it can disagree with a plain character count.
Posting on X in 2026
X rewards a strong first line and a post that stands alone without context. Threads work for longer ideas; a single post with a link performs worse than one without.
Hashtags on X are searchable but posts with more than two get less reach. Use them for live events and communities, not on every post.
X character limits (2026)
| Field | Limit | Note |
|---|---|---|
| Post (free) | 280 | Weighted count: URLs count as 23, emoji and CJK count as 2 |
| Post (Premium) | 25,000 | |
| Display name | 50 | |
| Bio | 160 | |
| Username | 15 | |
| Alt text | 1,000 | |
| Direct message | 10,000 | |
| Location | 30 |
Formatting support on X (Twitter)
X has no formatting on free accounts. Bold and italic exist only for Premium subscribers, so Unicode text is how most people add emphasis.
Line breaks count as one character each.
X image sizes (2026)
| Placement | Size (px) | Ratio |
|---|---|---|
| Single image post | 1600 × 900 | 16:9 |
| Square post | 1080 × 1080 | 1:1 |
| Header | 1500 × 500 | 3:1 |
| Profile photo | 400 × 400 | 1:1 |
Need one of these sizes? Use the X image resizer.
Hashtags on X
Posts with more than two hashtags get less reach on X; use them only for events or live moments. Limit: none. Sweet spot: 0–2.
Frequently asked questions
Are these X tools free?
Yes. The browser tools have no limits; the AI tools allow ten generations a day without an account.
Can I schedule X posts here?
Every tool has a "Schedule" link that opens Social by InstantDM with your text prefilled: it publishes to X and seven other platforms from one calendar.
Related free tools
Write it here, publish it everywhere
Social by InstantDM schedules to Instagram, Facebook, X, LinkedIn, TikTok, Pinterest, Threads and YouTube from one calendar, with AI captions, previews and an API. Start free — $0 today, cancel anytime.
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