Free tools for local businessesFree tool · Social media
Social Post Toolkit
Write once, check it everywhere. See where your caption fits, how easy it is to read, and what people see before the “more” cut. Then build a tracked link so you know which posts bring in visits.
FreeNo email, no sign-upPrint or save your results
100% FreeNo email neededNo sign-upPrint or save results
- Paste your captionCounts update as you type
- Fix what’s flaggedLength, hashtags, readability
- Build a tracked linkKnow which posts send visitors
1Your caption
Only used in the preview and printout.
2Your results
Social post checkCaption check
XLimit 280 characters
OK0
ThreadsLimit 500 characters
OK0
InstagramLimit 2,200 characters
OK0
LinkedInLimit 3,000 characters
OK0
TikTokLimit 2,200 characters
OK0
FacebookNo published limit
OK0
Readability
0/100
Flesch Reading Ease. 60 or higher reads easily on a phone.
Words
0
Hashtags
0
First line
0
characters
Instagram feed preview
Y
Your business
Just now
The highlighted part is roughly what shows before Instagram’s “more” link (about 125 characters). Put your hook there.
3Tracked link builder
Adds UTM tags so Google Analytics shows which posts sent people to your site.
Enter a page address to build your link.
Where the limits come from (checked Oct 26, 2026; platforms change these, so recheck before a big campaign):
- docs.x.com: standard posts are 280 characters (weighted; links count as 23). Longer posts need X Premium. Source
- Threads: posts up to 500 characters (Instagram’s Threads help page). Source
- Instagram: 2,200-character captions (Meta developer docs). Up to 5 hashtags per post (Instagram Help Center). Source
- LinkedIn: posts up to 3,000 characters (LinkedIn Help). Source
- TikTok: 2,200 for video captions, per TikTok’s developer docs. TikTok’s help center does not publish an in-app number. Source
- Facebook: we could not find a published post limit on Meta’s help pages, so we show a count only.