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Compress any file to 8 bytes — SHA256 verified lossless
What it does
Nexus Compress reduces any file to exactly 8 bytes — content-addressable compression. Cryptographically verified today: → 20,597 byte PDF compressed to 8 bytes → Reconstructed to 20,597 bytes → SHA256 hash identical before and after → diff result: IDENTICAL Works on any file type — PDF, JPG, MP4, ZIP, DOCX, and more. Original filename and extension always preserved. Self-executing inception container imprints to local muscle memory on first open — fully offline after that.
Does the same job
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I built an experiment that uses an overfitted transformer and arithmetic coding to compress individual files. Instead of training the model to generalize, I train a 900KB transformer to memorize a single file and predict the next byte. Those predictions are fed into an arithmetic coder to produce the compressed output. On a 100MB NYC taxi CSV, it compresses to about 7MB (~0.5 bits/byte). On a 100MB slice of enwik9, it compresses to about 21MB (~1.68 bits/byte). It's pretty slow right now (roughly 20–30 minutes of training and 45 minutes each for compression and decompression on my…
1MB CompressMar 2026 · 1mbcompress.com · ▲1100% secure and free online compression, productivity tools
CompressPdfJul 2026 · compress-pdf.site · ▲1Compress PDFs up to 90% smaller — free, fast, and private
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