🌱 TDF - Tree Document Format - a universal file format for web collections
↓ 下载
全部发行版 →🌳 TDF — Tree Document Format, by DOSAYGO
[!IMPORTANT] DownloadNet (dn) has grown into something new. The CDP-based archiver that lived in this repo was the seed of TDF: a new client, a new archive format (
.tdf), and a new capture architecture. The web is captured by Tree Grower and replayed by Tree Player — two native apps that grow dn's in-browser interception into a multi-browser architecture. dn v4.5 remains available, unchanged, in the Legacy section below. This repo is no longer an open-source codebase; it is the public home of the TDF product line and the permanent archive of dn.
Website & downloads: https://trees.dosaygo.com · Contact: trees@dosaygo.com
What is TDF?
TDF captures live browsing sessions into portable Tree Document (.tdf)
archives and replays them locally, offline, byte-for-byte — no proxy, no
cloud, no re-fetching.
| App | What it does | License |
|---|---|---|
| Tree Grower 🌱 | Captures web resources into .tdf archives while you browse. |
Paid — one-time purchase, offline device-bound activation. |
| Tree Player 🌳 | Opens and replays .tdf archives from disk. |
Free to download and use. |
Install
macOS / Linux:
curl -fsSL https://trees.dosaygo.com/install.sh | bash
Windows (PowerShell):
irm https://trees.dosaygo.com/install.ps1 | iex
Downloads and checksums: https://trees.dosaygo.com/downloads.html
From dn to TDF
dn intercepted responses inside Chrome's own fetch cycle over the Chrome DevTools Protocol (CDP) — Chrome-only. That interception model is the seed TDF grew from:
- Multi-browser. Grower drives your installed browser (Chrome, Firefox, and the Chromium family) over WebDriver BiDi / CDP. The browser stays the source of truth; nothing is re-fetched out-of-band.
- Active, blocking capture. Each response is paused in the browser, its body read through the automation protocol, stored, then released — deterministic capture instead of best-effort caching.
- One file per collection. A
.tdfarchive is a compressed (and optionally AES-256-GCM encrypted) SQLite database with indexed, deduplicated bodies — built for instant replay and easy sharing. - Native apps. Grower and Player are Rust binaries with a GUI. No Node,
no npm, no server on
localhost:22120. - Free reading. Anyone can open a
.tdfwith the free Player. Only creating archives (Grower) is paid.
Safari support is on the roadmap, pending Apple shipping the WebDriver BiDi
network module in safaridriver.
Licensing
The TDF apps are closed-source, proprietary software — see LICENSE. Grower is a paid product ($39 one-time at launch, 3-year license term, up to 3 devices) with offline, device-bound activation; Player is free. Full details: https://trees.dosaygo.com/license.html and https://trees.dosaygo.com/terms.html.
📼 Legacy: DownloadNet (dn)
The original dn — the offline full-text-search web archive that lived here
since the 22120 days — is preserved, unmodified, in the
legacy/ directory (old README). The final
release is v4.5, and
npm i -g downloadnet still works. dn is no longer developed or supported;
it remains under its existing PolyForm Strict license
(see NOTICE).
© 2026 DOSAYGO Corporation. Questions? trees@dosaygo.com