Free TikTok Tools
Everything on this page runs in your browser or on our AI, without an account. TikTok captions and bios are plain text. TikTok captions allow 4,000 characters since 2022, bios 80, comments 150 and usernames 24. The tools below handle the formatting, counting, previewing and writing; the scheduler handles the posting.
Write & format
Preview & mockups
AI generators
Counters & checks
Calculators
TikTok limits and sizes at a glance
TikTok captions allow 4,000 characters since 2022, bios 80, comments 150 and usernames 24. Only the first line of a caption shows in the feed; the rest sits behind "more".
Posting on TikTok in 2026
TikTok captions are searchable, so the keyword goes in the first sentence. A question or a "part 1" framing pulls comments; the rest of the caption is for hashtags and credits.
Three to five hashtags per TikTok: one broad, two or three niche, one that describes the video. #fyp and #viral do nothing measurable; keyword-style captions matter more because TikTok is now a search engine.
TikTok character limits (2026)
| Field | Limit | Note |
|---|---|---|
| Caption | 4,000 | Only the first line shows without tapping |
| Bio | 80 | |
| Display name | 30 | |
| Username | 24 | |
| Comment | 150 | |
| Video title (LIVE) | 32 | |
| Text overlay | No published limit | No hard limit; keep to a few words per line |
Formatting support on TikTok
TikTok captions and bios are plain text. Unicode fonts work in bios and captions and are common in usernames.
Line breaks work in captions; bios collapse to a few lines.
TikTok image sizes (2026)
| Placement | Size (px) | Ratio |
|---|---|---|
| Video / photo post | 1080 × 1920 | 9:16 |
| Carousel photo | 1080 × 1920 | 9:16 |
| Profile photo | 200 × 200 | 1:1 |
Need one of these sizes? Use the TikTok image resizer.
Hashtags on TikTok
Mix one broad tag, two or three niche tags and one that describes the video; #fyp does nothing measurable. Limit: none. Sweet spot: 3–5.
Frequently asked questions
Are these TikTok tools free?
Yes. The browser tools have no limits; the AI tools allow ten generations a day without an account.
Can I schedule TikTok posts here?
Every tool has a "Schedule" link that opens Social by InstantDM with your text prefilled: it publishes to TikTok 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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