Reviews of the most interesting devtools and latest beta releases.
Here's the latest newsletter sent on 2025-03-27.
Each week we review 2—3 of the most interesting developer tools. Here's what we featured this week.
Typesafe data validation library.
Describe your data schemas then validate them. Supports TypeScript types and more complex objects. Helpful transformers and utilities e.g. IPv4/6, dates, casing, trimming, etc. Modular, so it can tree-shake down to just 1-2 kb. Zero dependencies, like any good library should aim for.
Chaining support is better in Zod, but Validbot has pipelines which can achieve a similar goal.
Share your terminal on the web.
Run the CLI and your terminal becomes available through a web browser using websockets. Supports the full terminal or launch a specific command e.g. ttyd vim will show the editor in your browser. Can be manipulated programmatically via embedded xterm.js. Supports file transfers. Works cross-platform.
Runs on localhost by default, which is actually a good thing because exposing your terminal on the internet is not a great idea. However, to actually share it with someone you’ll need a way to expose it e.g. Tailscale Funnel or ngrok. Don’t forget to secure it!
ASCII diagramming.
Create WYSIWYG ASCII diagrams in your browser. Supports various primitives: text, steps, switches, tables. Easily export as text, or log in to save. Login is not required, though. You can choose ASCII or Unicode.
No way to import existing diagrams.
Discussions with the people behind the most interesting devtools.