Free & Browser-Based

Free developer & data tools

Free, browser-based calculators and converters for developers and data teams. No signup, and nothing leaves your browser. Use them, then come back when you need the real thing built.

Migration Scope

DMS Pre-Flight Check

Paste your schema DDL and get back the two lists that scope a migration: what AWS DMS carries, and what it leaves you to build. Nothing leaves your browser.

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AI Cost

LLM API Cost Calculator

Estimate your monthly OpenAI / Claude / Gemini bill from real usage, compare models side by side, and model the savings from routing and caching.

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Data Modeling

JSON to SQL Schema

Paste JSON, get a typed CREATE TABLE statement. Infers column types and nullability for PostgreSQL, MySQL or SQLite. Nothing leaves your browser.

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AWS Cost

AWS Glue Cost Calculator

Estimate your monthly AWS Glue bill from workers, job duration and runs, with crawler and Data Catalog costs. Compare Standard vs Flex and see what right-sizing saves.

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Taking on new engagements · Remote worldwide

Have a data, automation or AI decision worth getting right?

Whether that is ongoing technical ownership, one independent read on a problem, or someone to run the project. Let's scope it — I reply within one business day.

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