Free social media tools that run in your browser with no sign-up: check posts against the limits of 9 networks, tag links, prepare images.
These free tools cover the small jobs around a social media post: check it against the character limits of 9 networks, tag its link for Google Analytics, prepare images and video for each format, and work out its engagement rate. They run in your browser with no sign-up, and files you add stay on your device.
Work in your browser, no sign-up
Twitter character limit: 280 per post, 25,000 with X Premium. Free counter checks a post against 9 networks at once, links and emoji included.
Engagement rate = (likes + comments + shares + saves) ÷ followers × 100. Free calculator finds it by followers, reach or views for Instagram and TikTok.
Free Instagram grid maker: split one image into 3 to 15 posts of 1080×1350 for the 3:4 profile grid, or into a carousel of up to 20 slides.
TikTok safe zone: keep text 240 px from the top, 660 px from the bottom and 120 px from the sides of a 1080×1920 clip. Also Reels, Shorts and Stories.
Free UTM builder for Google Analytics 4: tag a link with source, medium and campaign for 9 networks, including LinkedIn and Facebook. No sign-up.
Write them once and they go out on time
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