Tools for developers, data people and small teams.
Biz59 LLC is a small company in New York. We build and run eleven products, most of them with one sign-in, and we write about what we see in software, AI and startups.
A database client, plus free data tools in the browser.
iPaid, i Owe: track what you owe and what is owed to you.
Security tools for small sites and teams, with one sign-in.
Short links, QR codes and page-view tracking.
An email router for apps, developers and bots.
Privacy policies, terms and consent records for apps and sites.
Website, policies, support pages, sign-in and cloud sync for your mobile app.
Offline-first cloud sync for your app's data, with sign-in for your users built in.
Our build agent: describe your app in a chat and watch it get built. Coming soon.
A whiteboard that also draws the diagram from your outline.
Markdown notes and documents that look good on screen and on paper.
More articles
One markdown note, three ways out: a PDF, a link and a plain file
A proposal usually gets written three times: once as notes, once in a document for the client, once pasted into an email. md.biz59.net is a markdown editor that treats the note as the only copy and lets it leave as a typeset PDF, a read-only link or the plain file. What it does, with screenshots, and what it deliberately doesn't.
Type the outline, get the diagram: a whiteboard for people who can't draw
Most diagrams in a small company start as a list somebody typed in a chat. draw.biz59.net takes that list as it is, indented with two spaces, and lays out the mind map, fishbone, swimlane or architecture drawing for you. Here is how it works, with screenshots of the real board, and where it stops.
Who reads the AI's code? What a code review looks like when most of the change was generated
Teams using AI merge twice as many changes, each more than twice the size, and review time has nearly doubled. What reviewers miss in a long, tidy, generated diff, the four areas that always get a second person, why the tests are the contract, and eight things a founder with no developer can ask a contractor to show.