Free tools
Free tools for creators, brands, and agencies — caption and hashtag generators, engagement-rate and influencer-rate calculators, posting-time guides, and more.
Content & scheduling
A free social media caption generator helps you write scroll-stopping captions for Instagram, TikTok, X, and LinkedIn in seconds. Describe your post and get caption ideas tuned to each platform's tone and length.
A free hashtag generator suggests relevant, high-reach hashtags for your topic so your posts get discovered. Enter a keyword or topic and get a ready-to-copy set of hashtags grouped by reach.
The best time to post calculator shows recommended posting windows by platform and audience time zone, so your content lands when followers are most active. Pick a platform to see general high-engagement windows.
A free social media content calendar template helps you plan posts across platforms, themes, and dates in one view. Use it to map a month of content, then schedule it automatically with Repping.AI.
Creator marketing
An engagement rate calculator measures how actively an audience interacts with content. Engagement rate is calculated as total engagements (likes, comments, shares, saves) divided by followers (or reach), multiplied by 100.
An influencer rate calculator estimates fair sponsored-post pricing from follower count, engagement rate, and platform. It gives brands and creators a defensible starting point for negotiation.
A fake follower checker estimates how much of an account's audience is authentic versus bots or inactive accounts, helping brands vet creators before a partnership. It looks at engagement quality and follower-growth patterns.
Utilities
A free character counter checks your caption length against each platform's limit in real time — X (280), Instagram (2,200), LinkedIn (3,000), and more — so posts never get cut off.
A free UTM builder creates trackable campaign links by appending utm_source, utm_medium, and utm_campaign parameters to your URL, so you can measure which social posts drive traffic and conversions.
A free social media image size guide lists the current recommended dimensions and aspect ratios for posts, stories, reels, and profile images across Instagram, TikTok, X, LinkedIn, and YouTube — so nothing gets cropped.