The Social Media Kit
Free, privacy-first tools for social media creators and marketers
Free browser-based tools to preview social media posts, check vertical video safe zones, and format text across major platforms without uploading files.
About this launch
The Social Media Kit offers over 60 free utilities for content creators and social media managers to preview posts, check safe zones for vertical videos, and format text across LinkedIn, TikTok, Instagram, YouTube, X, and other platforms. All tools run locally in your browser using HTML5 Canvas and client-side JavaScript with zero file uploads or data storage. The platform provides essential formatters for writing polish, video resizing, caption preview, character counting, and platform policy guidance. Every tool is completely free with no account registration, paywalls, or friction.
What it does
- Post preview and truncation detection across multiple platforms
- Vertical video safe zone visualizers with platform UI overlays
- In-browser video resizing with background blur fill
- Writing polish and cliché detection for drafts
- Unicode line break formatting for Instagram and LinkedIn
- Over 60 specialized tools for 10 major social networks
Pricing
Pricing model: Free
Shopper questions
Are these tools really free and do they store my text or video files?
Yes, 100% free with no account registration required. All processing runs locally in your web browser and your files are never transmitted to an external server or stored anywhere.
Why doesn't Instagram or LinkedIn let me add clean blank lines?
Both Instagram and LinkedIn historically collapse consecutive empty lines or strip whitespace characters when published from standard text fields. The Social Media Kit's formatting tools replace fragile line breaks with invisible, non-collapsing Unicode separators to keep your paragraph spacing readable.
Who created The Social Media Kit?
The Social Media Kit is an independent project created and maintained by Junior (juniorxk), a web developer and creator who built it to provide free, privacy-first tools without paywalls, ad clutter, or data collection for creators worldwide.
Why do social media apps cut off my post text with '...see more'?
On mobile devices, apps like LinkedIn truncate text at around 140 characters, while desktop displays roughly 210 characters. Instagram, Threads, and X also enforce strict visual line limits. If your primary hook is pushed below the fold, readers scroll past without expanding. Our previewers simulate exact mobile cutoffs so you can hook your audience before the click.
What are vertical video safe zones and why do they matter?
When you upload vertical 9:16 videos on TikTok, Instagram Reels, or YouTube Shorts, platform interface elements (like like buttons, comments, captions, sound titles, and profile links) overlay the edges of the video. If your subtitles or titles fall inside these danger zones, viewers can't read them. Our safe-zone visualizers overlay the real interface graphics so you keep your critical content visible.
The Social Media Kit has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
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