StartellFree tools
Tools that work for you
No sign-up and nothing to download. Everything runs in your browser, and nothing you type leaves it.
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Engagement rate calculator
Enter your followers and the likes, comments, saves and shares on a post, and get your engagement rate with the formula shown.
Open →FreeSponsored post rate calculator
A starting price from your time, usage rights and exclusivity. Every assumption is visible and editable.
Open →FreeHook generator
Type your topic and audience and get ten opening lines to adapt, built on formulas that work for short video.
Open →FreeContent calendar generator
Give it your three content pillars and how often you post. Get a four-week plan you can copy.
Open →