Dekrypt Security

Projects

Open-source tools built and published by Dekrypt Security on its GitHub profile. Everything below comes from each project's README and its GitHub page. Install commands are copied from the READMEs.

Featured

Self-hosted spaced repetition calendar: SM-2 scheduling on a month-view calendar, forgetting curves, flashcard decks, a knowledge graph and dark mode.

What it does

  • SM-2 scheduling with default intervals of +1, +3, +7, +14 and +30 days, customisable
  • Month-view calendar with drag-and-drop rescheduling
  • Per-session forgetting curve chart
  • Flashcard decks with Anki .apkg and .txt import and export
  • Typed links between sessions and a force-directed knowledge graph
  • JWT registration and login, data isolated per user
  • Installable PWA with offline app shell
  • Node.js + Express, SQLite via better-sqlite3

Install

Docker

git clone https://github.com/Garuda8887/recall.git
cd recall
docker compose up -d

Update

git pull
docker compose up -d --build

Manual

git clone https://github.com/Garuda8887/recall.git
cd recall
npm install
node server.js

Open http://localhost:3000. The README says to change JWT_SECRET from its default in production.

Language
JavaScript
Licence
MIT

Source on GitHub

Other public repositories

whisperdrop

Burn-after-reading pastebin. Text is encrypted in the browser with AES-256-GCM; the key stays in the URL fragment, and the server deletes the paste after one read.

JavaScript

DropZone

Peer-to-peer file transfer between two devices in the browser using WebRTC. Files go directly between devices and are not uploaded to a server.

JavaScript

fitcheck

Command-line tool that counts how many tokens a codebase uses, checks which LLM context windows it fits in, and flags large files.

TypeScript

PortScout

Terminal UI for scanning local ports, seeing which are in use and by which process, and reserving free ones. Built with Textual.

Python

linux-forensics-collector

Zero-dependency Python script that collects system information, logs, persistence locations and execution history from a Linux host into a text and a JSON report.

Python

lingolift

Desktop app with a GUI that translates the text of a PDF into another language and saves the result as a PDF.

Python · MIT

Renamer

Desktop GUI tool that bulk-renames photos and videos by file name, file size, or EXIF date taken.

Python · MIT

SlowCraft

Desktop app (Python and Tkinter) that makes slow-motion video using the RIFE frame interpolation model.

Python · MIT

whisperdrop

Burn-after-reading pastebin. Text is encrypted in the browser with AES-256-GCM; the key stays in the URL fragment, and the server deletes the paste after one read.

What it does

  • AES-256-GCM via the Web Crypto API, key generated in the browser
  • Server stores only ciphertext and IV
  • Paste deleted on first read; unread pastes swept after 24 hours
  • Vanilla JS front end, Express back end with an in-memory store

Install

Run locally

npm install

# Terminal 1 — API server (port 3000)
npm run dev:server

# Terminal 2 — frontend (Vite, port 5173)
npm run dev:client

Open http://localhost:5173. The README describes it as a demo project and lists what to add for production use.

Language
JavaScript

Source on GitHub

DropZone

Peer-to-peer file transfer between two devices in the browser using WebRTC. Files go directly between devices and are not uploaded to a server.

What it does

  • 4-digit room code to pair two devices
  • Socket.io for signalling, WebRTC for the transfer
  • Multiple files queued and sent in sequence
  • Vanilla JS front end, Node.js + Express back end

Install

Run locally

npm install
node server.js

Clone the repository first. Open http://localhost:3000.

Language
JavaScript

Source on GitHub

fitcheck

Command-line tool that counts how many tokens a codebase uses, checks which LLM context windows it fits in, and flags large files.

What it does

  • fitcheck diff shows the token cost of uncommitted Git changes
  • fitcheck pack writes a skeleton of a TypeScript/JavaScript codebase
  • fitcheck init generates a .ctxignore file
  • JSON output and a GitHub Action for pull requests
  • Runs locally; the README states no API keys and no telemetry

Install

Install

# Zero install — just run it
npx fitcheck .

# Or install globally for everyday use
npm install -g fitcheck
Language
TypeScript

Source on GitHub

PortScout

Terminal UI for scanning local ports, seeing which are in use and by which process, and reserving free ones. Built with Textual.

What it does

  • Scans any range from 1 to 65535 on your own machine by trying to bind each port
  • Shows PID and process name for used ports (with psutil)
  • Free ports grouped into ranges, with recommendations
  • Reservations saved to ~/.portscout/reservations.yaml
  • Keyboard driven; works on Windows, Linux and macOS

Install

Install

pip install -r requirements.txt

Run

python portscout.py

Requires Python 3.10+. The README states it does not scan remote hosts.

Language
Python

Source on GitHub

linux-forensics-collector

Zero-dependency Python script that collects system information, logs, persistence locations and execution history from a Linux host into a text and a JSON report.

What it does

  • Standard-library Python only; no network connections
  • Read-only: does not change system configuration
  • SHA-256 hashes of startup scripts, config files and authorized SSH keys
  • Five categories: system, config, persistence, execution, logs
  • Outputs forensics_report_[TIMESTAMP].txt and .json

Install

Run

sudo python3 linux_forensics_collector.py

Save to another folder

sudo python3 linux_forensics_collector.py --output /mnt/usb_drive

Requires Python 3.6+. The README says to run it only on systems you own or are authorised to inspect.

Language
Python

Source on GitHub

lingolift

Desktop app with a GUI that translates the text of a PDF into another language and saves the result as a PDF.

What it does

  • Translates a whole PDF in one go
  • Choose the target language
  • Saves translated text as a PDF
  • Uses PyPDF2, googletrans, reportlab, tkinter and ttkthemes

Install

Install and run

git clone https://github.com/Garuda8887/lingolift.git
cd lingolift
python -m venv venv
source venv/bin/activate  # or venv\Scripts\activate on Windows
pip install -r requirements.txt
python lingolift.py

The README notes that complex layouts are not preserved.

Language
Python
Licence
MIT

Source on GitHub

Renamer

Desktop GUI tool that bulk-renames photos and videos by file name, file size, or EXIF date taken.

What it does

  • Sort by name, EXIF date taken, or size
  • Rename patterns such as IMG_001
  • Thumbnail previews
  • Skips corrupt or unreadable files
  • Supports .mp4 .mov .avi .jpg .jpeg .png .gif

Install

Windows

Download the latest .zip from Releases
Extract and double-click the .exe file

Python

git clone https://github.com/Garuda8887/Renamer.git
cd Renamer
pip install Pillow
python renamer.py

The README notes the Windows .exe is self-signed and may trigger SmartScreen or antivirus warnings.

Language
Python
Licence
MIT

Source on GitHub

SlowCraft

Desktop app (Python and Tkinter) that makes slow-motion video using the RIFE frame interpolation model.

What it does

  • Slow down by 2x, 4x or 8x
  • Choose a start and end time or the whole video
  • Optional brightness, sharpening and denoise
  • Frame preview; export with audio

Install

Setup

git clone https://github.com/Garuda8887/slowcraft.git
cd slowcraft
pip install -r requirements.txt

Run

python slowcraft.py

Also needs ffmpeg.exe, rife-ncnn-vulkan.exe and the rife-v4.6 model files downloaded manually, as described in the README.

Language
Python
Licence
MIT

Source on GitHub