PreviewYourPost
Free, real-time social post & feed previewer for creators
What it does
Preview your LinkedIn, Instagram, X, and Threads posts before publishing. Check the mobile and desktop '...see more' cutoff, test hook strength, and format text 100% free.
Preview your LinkedIn, Instagram, X, and Threads posts before publishing. Check the mobile and desktop
The free preview studio for creators & teams. See exactly how your post looks on LinkedIn, Instagram, X, and Threads before publishing. Click any platform below to start formatting and testing your hooks in real time. Simulate the exact 3-line desktop and 5-line mobile "...see more" cutoff fold. Check algorithmic hook strength and bold/italic Unicode styling. Switch between 1:1 square and 4:5 portrait ratios. Test carousel image grids and check caption fold truncation after 125 characters. Real-time 280-character circular progress ring, authentic link previews, hashtags, handle auto-linking, and multi-tweet thread layout. Simulate 500-character Meta Threads feeds with genuine platform…from previewyourpost.com
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AstraPixels▲267A pixel-art solar system at its real current positions.
Growth · 29d ago · astrapixels.com
Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io
- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io
I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com