Observed arrival · 2026-09-29
Time Space Reducer: compression with a time budget
TSR is a beta file archiver for macOS, Windows, and Linux that aims to shrink already-compressed files while restoring them byte for byte.
- For
- People archiving large collections of mixed file types
- Worth noticing
- The benchmark page names its test machine and file sets, and says its public-data results can be reproduced by anyone.
Field notes
The page explains a time-budget approach: TSR says it measures the user's machine and files, then estimates compression time, archive size, and extraction time before work begins. Its published test material names five file groups, ten comparison tools, and an Apple M5 Pro; the sample archive draws on public books, standards, and software test files. The page also acknowledges that some already-compressed formats, including EPUBs and standards' ZIPs, shrink little because their compression layer cannot be redone byte for byte.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
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