Tools from my engineering bench

Eight focused, browser-based tools connected to the work I actually ship: Flutter apps, Supabase backends, and AWS systems. Use them for exploration and review the output before production. Built by HLT3.studio.

Mobile & Flutter

Flutter Widget Catalog

Search and explore Flutter widgets with copy-paste code snippets and usage examples.

App Store Screenshot Generator

Frame an uploaded screenshot, add a caption, and export a PNG to review for your store listing.

Flutter Color Palette Generator

Generate a ten-shade color ramp with Dart MaterialColor and CSS output.

App Size Estimator

Explore an illustrative size budget using sample feature and asset weights, not measured SDK sizes.

Backend & Database

Supabase Schema Designer

Sketch tables and relationships, then export draft SQL to validate in a test database.

JSON to Supabase Types

Draft TypeScript row shapes from sample JSON; database-generated types remain authoritative.

Cloud & DevOps

AWS Serverless Cost Calculator

Explore serverless usage with stored example rates and explicit model limitations.

CloudFormation & Terraform Generator

Generate Infrastructure-as-Code snippets for common AWS architecture patterns.

Limits and privacy

These utilities help sketch an idea or inspect an example. Calculators use the assumptions stated on each page; generated code needs review and testing in your own project.

Inputs are processed in your browser and are not uploaded by these tools. No account or payment is required.

For work on a real product, see the services and agreed deliverables.

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