Software

Small native apps for Windows and Mac, and a Firefox add-on. Free to download.

Tiler

Scattered windows, tiled in one click

Version 1.0.0 · Released

A tiny menu-bar app for Mac. Pick an app, say iTerm2 with a dozen windows spread over two screens, and Tiler moves them all to the display you choose and lays them out in one grid of equal tiles.

Free. macOS 14 or later, Apple Silicon and Intel, dmg 0.3 MB. Not notarized: on first open choose Privacy & Security → Open Anyway, then switch Tiler on under Accessibility so it can move windows.

Tiler’s menu-bar menu open on iTerm2 — 11 windows, offering Move to and Tile on for each display, over eleven terminal windows tiled in an equal four-by-three grid

JSON Viewer

Big JSON, opened in seconds

Version 1.0.1 · Released

A fast native JSON viewer for Windows and Mac, built for big ETL exports: it opens a 1 GB file in seconds, reads JSON Lines from Mongo, searches all of it, and copies any value or path.

Free. Windows 10 and 11, zip 0.4 MB; run install.cmd for the file types. macOS 14 or later, Apple Silicon and Intel, dmg 1.1 MB. Not code-signed: on first open choose More info → Run anyway (Windows), or Privacy & Security → Open Anyway (Mac).

JSON Viewer holding a 1 GB JSON Lines file of six million records, with a search for a name and its first match selected

Tab Names for Claude Code

Every Claude Code tab, named

Version 1.1.0 · Released

A tiny Firefox add-on that names each claude.ai/code tab after its session and marks it ● while Claude works, ✋ when it needs you. It reads only what the page shows, and does nothing while a tab sits idle.

Free. Firefox 142 or later, 10 KB, signed by Mozilla. Click Continue to Installation, then Add, then reload open claude.ai/code tabs. Sends nothing, stores nothing. Not affiliated with or endorsed by Anthropic.

Two Firefox tab bars. Before: four tabs all titled Claude Code. After: the same tabs named aizu-my (running), aireader, webcam (waiting for you) and md-viewer

Webcam Viewer

Your camera, always on top

Version 1.0.0 · Released

A tiny native window for keeping an eye on a camera. It floats above your work, zooms up to 800%, and one click on the pin lets you reach what is underneath.

Free. Windows 10 and 11, zip 0.1 MB, no install. macOS 14 or later, Apple Silicon and Intel, dmg 0.7 MB. Not code-signed: on first open choose More info → Run anyway (Windows), or Privacy & Security → Open Anyway (Mac).

Webcam Viewer on a Mac watching a 3D printer mid-print, with the camera menu, the zoom buttons and the pin in its bar

AiReader

A fast, light PDF reader

Version 1.6.2 · Updated

Opens a PDF in a tenth of a second and finds words as you type. Highlight, draw, add notes and rearrange pages.

Free and open source. Windows 10 and 11, setup 2.2 MB. Portable 4.9 MB, no install. Source code (AGPL).

AiReader with three PDFs open in tabs, the report's bookmarks on the left, a highlighted sentence, a circled figure and a note, and the mark-up tools on the right

MD Viewer

Markdown, opened instantly

A tiny native viewer for Windows and Mac: tables, code, maths and diagrams, and it updates the moment you save.

Free. Windows 11, zip 2.1 MB. macOS 13 or later, Apple Silicon and Intel, dmg 4.1 MB.

MD Viewer showing a Markdown document with a contents list, a diagram and a table