> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/tree-sitter/tree-sitter/llms.txt
> Use this file to discover all available pages before exploring further.

# dump-languages

> Print info about all known language parsers

The `dump-languages` command prints a list of all the languages that the CLI knows about. This is useful for debugging purposes or for scripting.

```bash theme={null}
tree-sitter dump-languages [OPTIONS]
```

**Aliases:** `langs`

## Output Format

The command outputs information about each discovered parser, including:

* Language name
* Path to the parser
* Scope information
* File type associations

## Parser Discovery

The CLI searches for parsers in the directories specified by the [`parser-directories`](/cli/init-config#parser-directories) field in your config file.

Any folder whose name begins with `tree-sitter-` in these directories is treated as a Tree-sitter grammar repository.

## Options

<ParamField path="--config-path" type="path">
  The path to the configuration file. By default, the CLI uses the default location as explained in [init-config](/cli/init-config).

  This flag allows you to explicitly override that default and use a config defined elsewhere.
</ParamField>

## Examples

### List All Languages

```bash theme={null}
tree-sitter dump-languages
```

Example output:

```
java: /home/user/code/tree-sitter-java
  scope: source.java
  file-types: java

javascript: /home/user/code/tree-sitter-javascript
  scope: source.js
  file-types: js, jsx, mjs, cjs

python: /home/user/code/tree-sitter-python
  scope: source.python
  file-types: py, pyi
```

### Use Custom Config

```bash theme={null}
tree-sitter dump-languages --config-path ~/.config/tree-sitter/custom-config.json
```

### Pipe to File

```bash theme={null}
tree-sitter dump-languages > languages.txt
```

### Count Languages

```bash theme={null}
tree-sitter dump-languages | grep -c "scope:"
```

## Use Cases

### Debugging

Verify that the CLI can find your parser:

```bash theme={null}
tree-sitter dump-languages | grep my-language
```

### Scripting

Extract parser paths for automation:

```bash theme={null}
tree-sitter dump-languages | awk '/^[a-z]/ {print $2}'
```

### Documentation

Generate a list of supported languages:

```bash theme={null}
tree-sitter dump-languages > SUPPORTED_LANGUAGES.txt
```

## Troubleshooting

### No Languages Found

If no languages are listed:

1. Check your config file exists:
   ```bash theme={null}
   cat ~/.config/tree-sitter/config.json
   ```

2. Verify parser directories are set:
   ```json theme={null}
   {
     "parser-directories": [
       "/path/to/parsers"
     ]
   }
   ```

3. Ensure parser folders start with `tree-sitter-`:
   ```bash theme={null}
   ls ~/code/ | grep tree-sitter-
   ```

### Parser Not Showing Up

If a specific parser isn't listed:

1. Verify the directory name starts with `tree-sitter-`
2. Check that `tree-sitter.json` exists in the parser directory
3. Ensure the parser directory is in a configured `parser-directories` path