Tips, Guides & Updates
Practical guides and news from the ZeroTools team
UUID v7 vs v4: Which Should You Use in 2026?
v7 is the new default for database primary keys, but v4 isn't dead. A practical comparison with benchmarks, gotchas, and a clear decision guide.
Read moreEvery UUID Version Explained: v1 through v8, Nil, and Max
A developer's tour of every UUID version — what they're for, how they're generated, and when to use each one. Covers the full RFC 9562 spec.
Read moreStop Using UUID v4 as Your Primary Key
Random v4 UUIDs fragment your database indexes and hurt write performance at scale. Here's the problem, the benchmarks, and the UUID v7 fix.
Read moreWhy We Built ZeroTools
The internet is full of simple tools hidden behind signup walls and ad spam. We decided to fix that.
Read moreLorem Ipsum: The Complete Guide
Everything you need to know about the world's most famous placeholder text — its origins, meaning, and when to use it.
Read moreWord & Character Limits for Every Platform in 2026
Twitter, Instagram, LinkedIn, Google Ads, YouTube — the definitive list of character limits for every major platform.
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