Standalone live workbench

Build a real .anla, right now.

This is not a simulator. The page runs web/anla-core.js — the same reference implementation the conformance suite runs under Node — using Web Crypto for SHA-256 and the platform's compression streams for DEFLATE. Your files are read in this tab and are never sent anywhere.

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ANLA Standalone Workbench · Browser runtime No backend required

Choose a workspace

Use the folder field, or the native directory picker in Chromium-based browsers. A plain file field cannot see empty directories.

⌁ Choose a folder, or drop files here Everything is read inside this tab only.

Files0

Directories0

Logical size0 B

Root name—

Compression Chunk size Output filename DEFLATE level (the browser may ignore it) Exclusion globs, one per line

Preserve modification times Full verification after building Decoder requires AI: false

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Packed and fully verified

Download .anla

Open an ANLA archive

Verifies the bootstrap header, the footer, the manifest hash, every chunk and every file — before offering you anything.

⇩ Choose or drop a .anla file Archives from this page, from the Python CLI, or from the original v0.1 release.

Archive fully verified

Download the archive

Standalone profile v0.1

This page deliberately keeps to the smallest verifiable scope. It does not claim the whitepaper's full cross-platform metadata model.

Implemented

Single snapshot, ordinary files and directories, fixed and content-defined chunking, Store and DEFLATE, SHA-256, canonical JSON manifest, cross-file deduplication, full round trip, reproducible output.

Not implemented

Symlinks, hard links, ACLs, alternate data streams, sparse files, Zstandard, BLAKE3, encryption, signatures, append-only snapshots.

Safety boundary

Declared lengths are bounded before allocation, unsafe and duplicate paths are refused, unknown codecs and record types fail rather than being skipped.

Self-test

Append ?selftest=1 to this URL and the page packs, verifies, re-packs and compares a fixture against itself, then reports PASS or FAIL in the corner.

Run the self-test