Horizon OptiTools Eclipse
A Wikipedia article about kingfishers in its normal light theme The same Wikipedia article with OptiDark on: black page, blue links and the kingfisher photo unchanged

OptiExtras

The outer belt.

Free, open sourceNo licence keys, no accounts

Get the tools

Free tools for what the paid apps don’t cover: a true-colour dark mode for Chrome, a deep clean for Intel Macs, and translation for Safari on iPhone and iPad. No licence keys, no accounts.

OptiDark for Chrome, free

Dark mode, true colours.

A lightweight dark mode extension for Chrome. Light pages go dark, blue stays blue, and photos stay exactly as they were taken.

A Wikipedia article about kingfishers in its normal light theme The same article with OptiDark on: black page, blue links and the kingfisher photo unchanged
The Hacker News front page in its normal light theme Hacker News with OptiDark on: dark page with the header still orange
Wikipedia's Australia article with OptiDark on: flag, coat of arms and globe map in their real coloursOptiDark's popup: on for this site, the engine set to Filter with Pure Black, and advanced settings
  • Free
  • Chrome, Edge and Brave
  • 38 KB
  • Install guide included

OptiMac for Intel Macs

Old silicon, not retired.

A command-line optimiser for Intel Macs. The same deep clean and maintenance, with no interface to draw.

  • Built for Intel

    The same clean and maintenance, on the hardware OptiMac won’t run on.

  • Two commands

    One reports what it can reclaim. The other runs the periodic scripts.

  • Nothing left running

    No menu bar icon, no helper, no window. It does the job and hands the prompt back.

OptiMac Intel against a GUI cleaner, on an old Mac

FeatureOptiMac IntelThe usual GUI cleaner
Built asA command-line toolElectron wrapped around a web page
While it worksNo interface to drawRAM spent drawing its own window
On an old Intel MacRuns at full speedMakes the machine slower still
PriceFree, GPL-3.0Monthly, forever

Any page, translated.

A Safari userscript for iPhone and iPad. It detects foreign-language pages and translates them on the spot, with your choice of engine.

  • Translated in place

    The page stays where it is. The text just changes language.

  • Three engines

    Google, Yandex or Bing. They disagree often enough that having the choice matters.

  • It notices first

    Open a page in another language and it offers before you go looking.

Side by side

Against the paid equivalent.

FeatureOptiExtrasThe paid equivalent
PriceFree, source in the openMonthly, or paid up front
Translation engineGoogle, Yandex or Bing, your pickWhichever one they wired in
TrackingNone, and no telemetryRead the privacy policy
What you installA CLI, or a Safari userscriptAn app, or a browser extension
iPhone and iPadWorks in Safari on bothDesktop only, usually
When idleNo background processRunning anyway
LicenceGPL-3.0, fork itClosed source

Alternatives

Looking for an alternative?

Free and open source, for the machines the paid apps do not cover.

Free CleanMyMac alternative for Intel Macs

The deep clean and the maintenance run from the command line, so an aging Intel Mac spends nothing on drawing an interface. No licence key, no account, no cost.

OnyX alternative from the terminal

The macOS periodic scripts, the dyld cache and the Spotlight index, refreshed with one command rather than through a settings pane.

Alternative to paid cleanup subscriptions

GPL-3.0, source in the open, nothing collected and nothing sent anywhere. Read it, fork it, audit it.

Manual terminal maintenance alternative

The commands most people copy from forum posts, collected into two flags that report what is reclaimable before anything is removed.

Safari translation extension alternative for iPhone

OptiTranslate is a userscript rather than an App Store extension: it detects a foreign-language page and offers to translate it in place, on iPhone and iPad.

Google Translate alternative on iOS

Three engines to choose between, Google, Yandex and Bing, so you can pick whichever reads better for the language in front of you.

Questions

Straight answers.

What is in OptiExtras?

Three free tools: OptiDark, a lightweight true-colour dark mode extension for Chrome; OptiMac for Intel, a command-line optimiser for Intel Macs; and OptiTranslate, a Safari userscript for iPhone and iPad.

Is it really free?

Yes. OptiDark is a free download, and OptiMac for Intel and OptiTranslate are open source under GPL-3.0. No licence keys, no accounts, no catches.

Does OptiMac (the paid app) run on Intel Macs?

No. The paid OptiMac is written for Apple Silicon only. Intel Macs are served by the free OptiMac Intel CLI here, which gives aging hardware the same level of optimisation.

What does the deep clean do?

optimac --deep-clean scans caches, logs and leftovers and reports what is reclaimable, 4.2 GB across 1,318 files in the example run, before removing anything.

What does maintenance do?

optimac --maintenance runs the macOS periodic scripts and refreshes the dyld cache and Spotlight index, restoring factory-fresh behaviour on an aging machine in well under a minute.

Why a command-line tool rather than an app?

Zero GUI overhead. On an aging Intel Mac, a heavyweight Electron cleaner consumes RAM simply to draw its own interface and makes the machine slower still. A CLI does not.

What is OptiTranslate for iOS?

A Safari userscript for iPhone and iPad. It detects foreign-language pages and offers to translate them on the spot.

Which translation engines can it use?

Google, Yandex or Bing, your choice, so you can pick whichever gives the better result for a given language.

Does any of this track me?

No tracking and no telemetry in any of them. OptiDark makes no network requests at all. That is a large part of why they exist.

Where do I get the source?

OptiMac for Intel and OptiTranslate live in the OptiTools repositories, linked from the buttons above, under GPL-3.0 so you can read, fork and audit them. OptiDark ships as plain, readable source inside its download.

No licence keys. No accounts.

OptiDark is a free download. OptiMac for Intel and OptiTranslate for iOS are open source under GPL-3.0: read them, fork them, audit them.

  • Free
  • No accounts
  • No tracking