Documentation
Getting started
Install CODEXT, bundle your first codebase, and paste full context into any AI model. From fresh download to first bundle: about 60 seconds.
01
Download and install
Download the installer for your OS from the download page. On Windows, run the .exe — SmartScreen may show a warning on first run; click "More info" → "Run anyway". On macOS, right-click the .app → Open to bypass Gatekeeper on first launch.
Download links
/api/download?platform=windows → Windows 10/11 installer /api/download?platform=macos → macOS 12+ universal binary
02
Open CODEXT
Launch the app. You'll see the main interface: a drop zone on the left, an output panel on the right, and a settings bar at the top. No login screen. No onboarding wizard. It's ready to use immediately.
03
Connect GitHub (optional)
If you want to bundle repos directly from GitHub without cloning manually, click the GitHub icon in the top-right and follow the OAuth flow. Your token is stored locally in your OS keychain — never on our servers. This step is entirely optional.
Permissions requested
read:user → to display your username repo → to list and clone your repositories (read-only)
04
Drop a folder
Drag your project folder from Finder or Explorer onto the CODEXT drop zone. CODEXT will immediately start traversing the directory tree. You'll see the file tree building in real time in the left panel.
What gets excluded by default
node_modules/ .git/ dist/ build/ .venv/ target/ .gradle/ Pods/ __pycache__/ .next/ .nuxt/ out/
05
Review and configure
Before bundling, review the file tree. Toggle individual files or directories off if you want to exclude them from this bundle. Adjust the per-file size cap if needed (default: skip files > 500KB). Check the estimated token count in the top bar.
Token estimator
Displayed before bundling: ~34,100 tokens Based on GPT-4 tokenization model Claude 3 Opus estimate available in settings
06
Bundle
Click "Bundle". CODEXT writes a single .txt file to your chosen output directory. The file contains a structured header, a complete file tree, and the full contents of every included text file. Binary files are listed by name only.
Output file structure
CODEXT PROTOCOL: [version] Generated: [ISO 8601 timestamp] ──────────────────────────────── PROJECT MAP ├── src/ │ ├── index.ts │ └── utils.ts └── package.json ──────────────────────────────── FILE CONTENTS [file path] [file content] ...
07
Paste into your AI
Open the .txt file, select all, copy, and paste it into your AI conversation. Follow it immediately with your question or task. The AI now has the complete structure and content of your project.
Recommended opening prompt
The following is my entire codebase, bundled with CODEXT. File paths and contents are included below. [PASTE CODEXT OUTPUT HERE] My question: [your question]