Useful Tools

Which one do you need?

You have SQL that runs on one database and needs to run on another

Query Studio translates between 18 dialects — MySQL, PostgreSQL, SQL Server, Snowflake, BigQuery and the rest — and converts SQL to MongoDB. It also explains a query’s real execution order, scores it for anti-patterns, suggests index candidates and draws an ER diagram from CREATE TABLE statements. Every result is computed by real parsers rather than a language model, which is why it is instant, unlimited and identical every run.

Git has eaten something and you need it back

Git Rescue is 56 step-by-step recovery guides, 82 documented commands and a glossary of the vocabulary Git’s error messages assume you already have. Every guide states up front whether the work is actually recoverable — including the cases where the honest answer is no, which is the part most references leave out.

There is a table on a web page and you need it in a spreadsheet

Table Grabber copies any table to CSV, Excel, Markdown, JSON, SQL, YAML or LaTeX, with no row limit. It handles the cases that break the alternatives: merged cells, grids built out of divs rather than a real table, rows that only load as you scroll, and content inside a shadow DOM. Works here in the browser or as a Chrome extension.

You need to see what a site is actually storing about you

Storage Inspector shows all six storage areas on one screen — cookies including HttpOnly, localStorage, sessionStorage, IndexedDB, Cache Storage and service workers — with sizes, decoded JWTs, quota meters, a scored cookie-security check and around 45 named tracker vendors. It is the tool for “why is this origin holding 400 MB” and “why is my site still serving last week’s build”.

What “free” means here

No account, no trial, no row cap, no feature held back for a tier that does not exist. That is not generosity — it follows from how these are built. The work happens in your browser or in a parser on the server, with no per-request cost to recover, so a usage limit would exist only to sell you its removal.

The two Chrome extensions install with no site access at all and read a page only when you invoke them. Nothing is uploaded, and there is no analytics on what you paste into anything here. If a tool needs a permission, it asks for that permission, for that site, at the moment it needs it.

All of it is built and maintained by one person — more about that here — and the reasoning behind most of it gets written up on the blog.