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Rewrap
Remux and convert video into Apple-friendly MP4 and M4V. Passthrough first, with chapters and artwork kept.
Appstuff
Mac apps that do one job well.
Native utilities for Apple silicon, a suite of tools for web developers, and custom apps built for clients, all designed and made at Xenoplexus Studios.
Apple silicon native Signed & notarized No subscriptions No analytics
Mac apps
Everyday Mac apps
Small, native apps for Apple silicon. Some replace tools that stopped keeping up with the Mac; others do a job nothing else did quite right.
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Bitrate
Drag-and-drop audio conversion to MP3, AAC, ALAC, FLAC, WAV, OGG and Opus, with tags and artwork intact.
In development
Retitle
A subtitle editor for SRT, SSA/ASS and WebVTT: retime, fix conflicts, clean up and convert. The companion to Rewrap.
Beta
Cadence
Time Machine on your schedule: Manual mode is back, and backups run only when your backup disk is actually plugged in.
In development
Steward
Plain-English bookkeeping for tiny nonprofits, over audit-grade double-entry books with fund tracking.
Request access
Classroom Diaries
Record a lesson, transcribe it on your Mac, and publish the vocabulary you actually taught to each class’s Google Doc.
Also from us, on its own site
Available
Kettlestitch
A native EPUB editor that opens, checks and repairs EPUB files, and turns DOCX, Markdown or HTML into clean, valid EPUB 3.
Little utilities
Small, single-purpose Mac helpers we built for ourselves.
Unhide Me
Show or hide Finder’s hidden files in one click
MenuSearch
Apps, files and quick math from Option-Space
Zip Me Up
Clean zips without .DS_Store or __MACOSX
MP4tools, NCH Switch, SUBtools, invisibliX and YemuZip are trademarks of their respective owners. Our apps are independent and are not affiliated with or endorsed by them.
XenoTools
Tools for web developers
Native Mac apps for building, serving and shipping PHP sites. Boring, inspectable and scriptable: every app has a command line that does what the buttons do.
In development
XenoMaster
Start every project from a CMS template, registered with every XenoTool, and archive it when it ends.
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XenoKit
Compiles Sass, JavaScript, TypeScript and CSS as you save, from rules you commit in .xenokit.yml. Imports CodeKit projects.
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XenoHost
Local Apache, PHP and MySQL in a native control panel, with HTTPS, .local names and safe rollback.
In development
XenoSQL
A careful MySQL and SQLite client. Edits are staged, and you see the exact SQL before anything is sent to the server.
In development
XenoDeploy
Deploy PHP sites to your own server from your Mac, with a plan before every deploy and rollback after.
In development
XenoAudit
One read-only board for outdated dependencies and drift between your Mac and production.
CodeKit and MAMP PRO are trademarks of their respective owners. XenoTools are independent and are not affiliated with or endorsed by them.
Our approach
How we make apps
The same rules for every app we ship, big or small.
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Apple silicon native
Written in Swift for M-series Macs. No Rosetta, no web wrappers, no Homebrew to install first.
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Private by default
No analytics or telemetry. When an app does use an outside service, like Classroom Diaries with your own AI key, it tells you up front.
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Pay once per version
Our paid apps are a one-time purchase per major version, with every update to it included, on two Macs. Upgrades are half price. No subscriptions.
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Signed & notarized
Every release is signed with our Developer ID and notarized by Apple, so macOS knows exactly where it came from.
App development
Need an app of your own?
We design and build Mac, iPhone and iPad apps for businesses and organizations, from companion apps for your website to internal tools that take the busywork off your team.
- Mac apps
- iPhone & iPad apps
- Companion apps for websites
- Internal tools & automation