Free tools
Useful tools for the work between idea and publish.
Free, browser-based utilities for founders and lean teams. No account is needed to use them, and your text and links stay in your browser.
Social media character counter
Check a post against the current limits for X, LinkedIn, Threads, Bluesky, and more.
UTM builder for social media
Create clean campaign links for social posts, newsletters, launches, and product updates.
Social media image sizes
Find practical image dimensions and file guidance for the channels you publish to.
Why free tools?
Start with one useful job.
The best marketing tools remove a small piece of repeated work immediately. Use a counter before a post goes live, tag a link before a launch, or check an image before it reaches the queue.
When the work becomes a weekly system, Cadencz connects the source, planning, platform-native writing, approval, scheduling, publishing, and analytics in one workspace.
Build a week from your product context