Free Social Media Marketing Tools
I build these with the same rules PostQuest uses to check posts before they publish. They are free, need no account, and run in your browser.
Character counters
Check a post against each network’s limit, counted the way that network counts.
- Social media character counterPaste a post once and see how it fits all ten networks.Open tool
- Instagram character counterCheck a caption against the Instagram limit before you post.Open tool
- Facebook character counterCheck a caption against the Facebook limit before you post.Open tool
- X (Twitter) character counterCounts links as 23 and emoji as 2, like X does. Covers the Premium limit too.Open tool
- YouTube character counterCheck a caption against the YouTube limit before you post.Open tool
- TikTok character counterCheck a caption against the TikTok limit before you post.Open tool
- Pinterest character counterCheck a caption against the Pinterest limit before you post.Open tool
- LinkedIn character counterCheck a caption against the LinkedIn limit before you post.Open tool
- Threads character counterCheck a caption against the Threads limit before you post.Open tool
- Bluesky character counterCheck a caption against the Bluesky limit before you post.Open tool
- Mastodon character counterCheck a caption against the Mastodon limit before you post.Open tool
Image tools
Prepare images in your browser before you post.
Reference
Sizes and limits for every network, with sources.
Schedule posts that pass these checks
PostQuest validates every caption and file against these limits before a post is scheduled, so nothing fails at publish time.