Social Media Tools
Captions, post helpers.
28 free social media tools — no sign-up, runs in your browser.
Reviewed by The Markvibe Team · Last updated 2026-06-28
The complete guide to social media
This page is the hub for everything social media on Markvibe. Captions, post helpers. Every tool below runs in your browser — your files and text never leave your device. Use the cluster as a workflow: pick the tool that matches the job, then jump to a related one when the next step calls for it.
All Social Media Tools
Grab YT thumbnails.
Build Twitter Card tags.
Generate IG captions.
Generate clean hashtags from any keyword list.
Generate an HTML email signature.
Find a Facebook ID via Lookup-ID.com.
Suggest Instagram crop sizes.
Generate Open Graph meta tags.
Generate a vCard (VCF) string.
Channel age — requires YouTube API.
Channel ID lookup — uses YouTube URL.
Random commenter picker — needs API.
Description extract — needs API.
Generate a YouTube description template.
Downloading violates YouTube ToS; skipped.
Generate YouTube embed iframe.
Extract #hashtags from description.
Generate hashtags for a topic.
Estimate YouTube earnings.
Build sub_confirmation YouTube link.
Tag extraction — needs API.
Generate YouTube tags from a topic.
Generate YouTube timestamp links.
Title fetch — needs API/scrape.
Generate YouTube title ideas.
Check YouTube title length.
Open Social Blade for a video ID.
Compute view-to-subscriber ratio.
Explore related categories
Keep going — these categories pair well with social media workflows.