What is a custom Retool component, and when do you need one?
For when Retool's built-in components stop one requirement short.
For builders
All articles, newest first. Page 1
What is vibe coding, and what does it take to run the result?
The app works on your machine. Auth, data, deployment, and monitoring are still open.
A one-line change should not take three weeks
When a small change to an internal tool takes weeks, the cause is usually architecture: coupled queries, scattered logic, and no shared data model.
A pre-build checklist for internal tools that have to last
Six questions to answer before anyone opens the editor.
Custom code on the new Retool, with the controls IT asks for
What changed in Retool for teams that need custom code and still have to pass an IT review.
Editor.js for Retool: an open-source block editor component
Block-style editing in Retool, free to use and extend.
A range slider that shows users what they are filtering
A custom Retool filter control with the data distribution built in.
A custom RadioGroup component for Retool
Selection controls with the layouts and states the native RadioGroup does not offer.
A custom document viewer component for Retool
Previews for the file formats Retool's built-in components do not render.
How to run full-text search across multiple columns in PostgreSQL
One search box across several columns, with a generated tsvector column and a GIN index.
PostgreSQL INT4RANGE: enforce non-overlapping zones in SQL
Let the database refuse overlapping ranges, so the app does not have to check.
Retool HTML component events: why every handler fires at once
Why one click triggers every handler on a Retool HTML component, and how to route each event to the right one.