I Built a VS Code Extension to Paste Your Project into Free Chatbots and Apply the Diffs in One Click

Let me show exactly how it works with an example 🛻

The extension adds a new "ReptClip" tab in the VS Code bottom panel:

I am going to use this extension to redesign my website's landing page. First, we need to prepare the context.

Specify which files to add to the context in the "Files to include" input. You can use glob patterns like **/*.ts.

Since I want to update the landing page, let's add page.tsx. You will get suggestions as you type:

Click "Enter" or "Tab" to accept the suggestion:

If it matches any files, it will turn green. Otherwise, it will turn yellow.

Let's add AGENTS.md too:

This order is preserved in the context output. page.tsx will appear after AGENTS.md.

Now, click "Enter" again. The context will be copied directly to your clipboard. It looks something like this:

# Project structure

```
.gitattributes
.gitignore
AGENTS.md
CONTRIBUTING.md
LICENSE
README.md
pipxclip-config.toml
pyproject.toml
src/pipxclip/__init__.py
src/pipxclip/cli.py
src/pipxclip/config.py
tests/test_cli.py
tests/test_config.py
```

# Output format

Provide all file modifications as Search/Replace blocks inside a single 4-backtick code block.

## Formatting Rules

1. **File Headers:** Every set of edits must begin with the exact relative file path on its own line (e.g., `path/to/file.ext`), even if there is only a single file in the project.
2. **Exact Matching:** The `SEARCH` block must contain an *exact, verbatim* copy of existing code, including identical whitespace, indentation, and surrounding context lines to uniquely identify the match.
3. **Uniqueness:** Provide sufficient surrounding unchanged lines in the `SEARCH` block to ensure it matches exactly **one** location in the target file.
4. **New Files & Deletions:**
   - To create a new file, use an empty `SEARCH` block.
   - To delete a file or a code block, use an empty `REPLACE` block.
5. **No Placeholders:** Do not use ellipses (`...`), comments like `# rest of code unchanged`, or omitted lines inside `SEARCH` or `REPLACE` blocks.
6. **Sequential Edits:** If editing multiple parts of the same file, list the `SEARCH/REPLACE` blocks in top-to-bottom order as they appear in the file.

## Example

````
src/models/user.py
<<<<<<< SEARCH
class User:
    def __init__(self, name):
        self.name = name

    def to_dict(self):
        return {"name": self.name}
=======
class User:
    def __init__(self, name, email):
        self.name = name
        self.email = email

    def to_dict(self):
        return {
            "name": self.name,
            "email": self.email,
        }
>>>>>>> REPLACE

src/controllers/user_controller.py
<<<<<<< SEARCH
from src.models.user import User
=======
from src.models.user import User
from src.utils.validator import validate_email
>>>>>>> REPLACE
<<<<<<< SEARCH
def create_user(name):
    return User(name)
=======
def create_user(name, email):
    validate_email(email)
    return User(name, email)
>>>>>>> REPLACE

src/utils/validator.py
<<<<<<< SEARCH
=======
def validate_email(email):
    if "@" not in email:
        raise ValueError("Invalid email address")
>>>>>>> REPLACE
````

# AGENTS.md

```
Do not make mistakes.
```

# Prompt

<- Cursor lands here. You can quickly start typing.

Now, go to any free chatbot and paste the context using Ctrl + V:

Type your prompt, and send:

The chatbot will generate the diffs inside a code block:

Copy it to your clipboard, and go back to VS Code.

Click "Apply Diffs" in the ReptClip tab. The extension reads the diffs from the clipboard and applies them to the files:

Let's start the development server and check out the new landing page:

The landing page has been redesigned.

If you didn't like the changes, clicking "Revert" reverts all affected files to the previous state.

If at least one of the diffs is faulty, you'll get this:

It also lets you customize the context:

State is stored on a per-project basis. So, when you come back, your configuration will not be gone or mixed up with other projects.

If you want to use the extension purely for context, uncheck Diff format to remove the ## Output format section.

Here are a few edge cases explained:

• Files to include **/*.py main.py: All Python files are included, but main.py comes last.
• Files to include **/*.py src/**/*.py: All Python files are included, but the Python files in src come last.
• Files to include **/*.py, files to exclude secret.py: All Python files are included, except secret.py.

So, that's basically what the extension does. If you liked it, a ⭐ on GitHub would really help A LOT! Please feel free to share it with friends or teammates who are looking for a $0 AI coding setup.

• GitHub Repository
• VS Code Marketplace
• Open VSX

It's inspired by my CLI app PipxClip, which was formerly ReptClip, so I named it ReptClip for VS Code.

Also, please tell me what you think in the comments. It really helps me improve the extension further. Big thanks to @piekwerk and @mansio for their suggestions during development!

Also, thanks to @unitbuilds for informing me about the limited-time free access to Qwen 3.8 Flash in Qoder. It wouldn't have been possible without it.

I purposefully kept the source code minimal and lightweight. Feel free to submit pull requests. I review them every day!

Total cost to build this: $0.

I created this extension specifically to help developers who can't afford paid coding agents, giving everyone access to a smooth AI workflow for free.

Thanks for reading 🙂🎉🎉