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Media Cheat Sheet – Up-to-date social media image and video sizes

https://mediacheatsheet.com/
6•ronaldsvilcins•17h ago
Hi HN!

I’ve built MediaCheatSheet.com – a simple, no-nonsense reference tool that collects the latest social media image and video dimensions in one place.

It’s designed for designers, content creators, and marketers who are tired of constantly Googling “Instagram reel size” or “Twitter post image ratio.”

There are no ads, trackers, or logins – just the specs you need, organized by platform. It’s free to use, and I plan to keep it regularly updated.

Would love your feedback, suggestions, or ideas for what to add next!

Thanks! Ronalds

There Aren't Enough Cables to Meet Growing Electricity Demand

https://www.bloomberg.com/news/articles/2025-06-12/there-aren-t-enough-cables-to-meet-growing-electricity-demand
1•m463•24s ago•0 comments

Show HN: Dual Elliptic Curve Math Backdoor in Python

https://leetarxiv.substack.com/p/dual-ec-backdoor-coding-guide
1•muragekibicho•1m ago•0 comments

Rethinking Losses for Diffusion Bridge Samplers

https://arxiv.org/abs/2506.10982
1•badmonster•4m ago•0 comments

The twom database format

https://www.fastmail.com/blog/introducing-twom/
1•thunderbong•7m ago•0 comments

The Case for Code‑Centric System Dynamics (SD)

https://teachyourselfsystems.com/manifesto
1•andreisavu•9m ago•1 comments

C2y: Hitting the Ground Running

https://thephd.dev/c2y-hitting-the-ground-running
2•todsacerdoti•12m ago•0 comments

Building web apps from scratch – HTTP – Part 4

https://coz.is/posts/004_http.html
1•thunderbong•14m ago•0 comments

Japan struggles to fend off a world without enough matcha

https://www.japantimes.co.jp/life/2025/02/23/food-drink/matcha-shortage-global-solutions/
2•layer8•21m ago•0 comments

Meta AI searches made public – but do all its users realise

https://www.bbc.com/news/articles/c0573lj172jo
1•teleforce•21m ago•0 comments

Alexandr Wang – What I learned in 2016

https://medium.com/@alexandrwang/what-i-learned-in-2016-5526cff37035
1•cornfieldlabs•35m ago•0 comments

Window-sized device taps the air for safe drinking water

https://news.mit.edu/2025/window-sized-device-taps-air-safe-drinking-water-0611
2•bookofjoe•41m ago•0 comments

Apple's Liquid Glass Effect for React

https://github.com/rdev/liquid-glass-react
3•behnamoh•47m ago•0 comments

Hybrid Still Isn't Working

https://hbr.org/2025/07/hybrid-still-isnt-working
2•wisty•47m ago•1 comments

Show HN: A visual, knowledge map based interface for deep research/deep dives

https://www.proread.ai/deepdive
3•kanodiaashu•55m ago•0 comments

Show HN: SharkMCP, a Tshark MCP Server

https://github.com/kriztalz/SharkMCP
1•PranaFlux•56m ago•0 comments

Ecology: A World Without Mosquitoes

https://www.nature.com/articles/466432a
1•sebmellen•57m ago•0 comments

Intel Vulkan Linux Driver Lands Initial Support for VP9 Decoding

https://www.phoronix.com/news/Intel-ANV-VP9-Vulkan-Video
1•mikece•1h ago•0 comments

How to make StackExchange (and others) more fun

https://rubenerd.com/how-to-make-stackexhange-more-fun/
1•mikece•1h ago•0 comments

FIFA 'more poorly governed today than 10 years ago'

https://www.theguardian.com/football/2025/may/27/fifa-more-poorly-governed-open-letter-football-politics
2•PaulHoule•1h ago•1 comments

Random AI Greentext Generator

https://haiku.tulv.in/greentext
1•atulvi•1h ago•0 comments

Solving LinkedIn Queens with APL

https://pitr.ca/2025-06-14-queens
2•Bogdanp•1h ago•0 comments

Ask help Need endorsment to publish a working AI alignment protocol to ArXiv

1•AdriaanVan•1h ago•0 comments

How to Choose a Good Scientific Problem [pdf]

https://www.cell.com/molecular-cell/pdf/S1097-2765(09)00641-8.pdf
1•toomuchtodo•1h ago•0 comments

Ahead of Protests, Waymo Scales Back Robotaxi Service Nationwide

https://www.wired.com/story/ahead-of-protests-waymo-adjusts-robotaxi-service-nationwide/
4•tlogan•1h ago•0 comments

Subpixel Zoo: A Catalog of Subpixel Geometry

https://geometrian.com/resources/subpixelzoo/
1•mkl•1h ago•0 comments

Ask HN: Genuine alternatives to Google and Apple for releasing paid apps

7•asjdflakjsdf•1h ago•5 comments

Coming to Apple OSes: A seamless, secure way to import and export passkeys

https://arstechnica.com/security/2025/06/apple-previews-new-import-export-feature-to-make-passkeys-more-interoperable/
2•miles•1h ago•0 comments

Chess with Different Armies

https://www.chessvariants.com/unequal.dir/cwda.html
2•Mr_Minderbinder•1h ago•0 comments

Anne Wojcicki is taking back control of 23andMe

https://www.theverge.com/news/687123/23andme-anne-wojcicki-acquisition
1•gametorch•1h ago•1 comments

Historical Tech Tree

https://www.historicaltechtree.com/
1•Philpax•1h ago•0 comments