Deduplication
Near-duplicate detection, not just exact matches.
Website Direct edition
Pay once. Fully unlocked. Verified by Apple.
This website download is a separate direct-distribution build from the Mac App Store edition. It contains no StoreKit purchase flow or subscription screen: every feature is available after the one-time website purchase.
Apple notarized this exact disk image after an automated malware check. It is signed with the publisher's Developer ID and its notarization ticket is stapled to the download, so Gatekeeper can verify it even when your Mac is offline.
How signing, notarization and installation work- Version
- 1.1 (build 12)
- Released
- 2026-08-22
- Requires
- macOS 14 or later
- Architecture
- Apple silicon and Intel
- Download
- 5.0 MB DMG
- Apple check
- Notarized · Developer ID signed
- SHA-256
df2a656adebf399a0fe7d0ba6d20c5ea2cc307948e5dfdde2c4d7390a6bff5f5
What it is
What Alembic does
Turns messy source material into a training-grade dataset: cleaning, deduplication, formatting and export to the shapes fine-tuning tools actually expect, with every step reversible.
Fine-tuning fails on data quality far more often than on hyperparameters. Alembic handles the unglamorous part: cleaning, deduplicating, normalising and formatting source material into the structures training tools expect.
Every transformation is a reviewable step, so you can explain what happened to the data and undo it.
How it does its job
Reversible steps
Each transform is recorded and can be undone.
Training-ready export
The formats fine-tuning pipelines actually consume.
What it doesn't do
It cannot make a small or biased corpus representative. It makes what you have clean and legible.
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Native, local-first, and yours
Alembic is a native Mac app distributed as a complete, fully activated download. No subscription, no account, no locked features, no tracking.
Buy & downloadGet Alembic
Choose $10 for one app, $20 for two different apps, or $49 for every published app through Stripe's hosted checkout. Download on the confirmation page or open the delivery email on your Mac. Each link is single-use; your email shows its exact expiry. Keep the installer for future use. If your link expires or the download fails, ask for a replacement link with your receipt; do not buy again.
Common questions
What is Alembic?
A native Mac data-preparation workspace for AI work: deterministic pipelines for cleaning, exact and near-duplicate removal, PII scrubbing, semantic chunking and real tokenization, with eight training and retrieval export schemas. Recipes replay identically.
Who is Alembic for?
Alembic is for Mac users looking for data tools. Turns messy source material into training-grade datasets - cleaning, dedup and export, every step reversible.
Which Macs can run Alembic?
Alembic requires macOS 14 or later. Supported architecture: Apple silicon and Intel. Check About This Mac before purchasing.
Is this the same Alembic edition as the Mac App Store version?
No. The Mac App Store edition can include Apple's in-app subscription system. The website Direct edition is a separately signed build with no StoreKit purchase flow: one website purchase unlocks the complete app with no recurring charge.
Is Alembic the full version, or are features locked?
The download is the complete app. There is no subscription, no locked tier, no account, and no trial timer — every feature is included.
How do I get Alembic?
Choose $10 for one app, $20 for two different apps, or $49 for every published app through Stripe's hosted checkout on this page. Download links are delivered on the confirmation page and by email. Each link is single-use; its exact expiry is shown in your delivery email. Keep the installer. If the link expires or a download fails, contact support@macossoftware.com with your receipt instead of buying again.
Is the Alembic Direct edition notarized by Apple?
Yes. Version 1.1 is signed with a Developer ID certificate, notarized by Apple, and distributed with a stapled notarization ticket. Its published SHA-256 checksum is df2a656adebf399a0fe7d0ba6d20c5ea2cc307948e5dfdde2c4d7390a6bff5f5.